234 free tools · Private · In-Browser

Converters & Units Tools

Unit converters for everyday and technical work: length, weight, volume, temperature, pressure, energy, data sizes and transfer rates. You will also find clothing size charts, Roman numerals and number-to-words converters. Results update as you type.

Clothing Size Converter

Free clothing size converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Cheque Amount in Words

Convert a cheque amount to words with cents in 00/100 format, ready to copy, or spell out any number in words. Free and instant in your browser.

metric tonne to kilogram Converter

Free metric tonne to kilogram converter with exact mass math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Data Transfer Rate Converter

Free data transfer rate converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

microgram to milligram Converter

Free microgram to milligram converter with exact mass math, reverse conversion, copy-ready output, and a quick reference table in your browser.

REM PX Converter

Convert pixels to rem and rem to pixels with a configurable base font size.

Roman Numeral Date Converter

Free Roman numeral date converter: write any date in Roman numerals, the way monuments and film credits do, in your browser.

astronomical unit to kilometer Converter

Free astronomical unit to kilometer converter with exact length math, reverse conversion, copy-ready output, and a quick reference table in your browser.

bar to kilopascal Converter

Free bar to kilopascal converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

BTU/hour to watt Converter

Free btu/hour to watt converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Centimeters to Inches Converter

Convert centimeters to inches and inches to centimeters with an exact metric factor, six-significant-figure results, and a quick table in your browser.

Furlongs to Meters Converter

Convert international furlongs to meters and meters to furlongs using the exact 201.168-meter definition, with precise results in your browser.

Light-Year Converter

Free light-year converter: convert between light-years, kilometres, miles, AU, and parsecs, in your browser.

Meters per Second to KM/H

Convert meters per second to kilometers per hour and back with the exact 3.6 factor, six-significant-figure results, and a table in your browser.

microsecond to millisecond Converter

Free microsecond to millisecond converter with exact time math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Odds Ratio Calculator

Free odds ratio calculator from a two-by-two event table, returning group odds and their ratio with clear direction entirely in your browser.

Product Title Length Optimizer

Review product titles for length, clarity, and marketplace readability.

Service Area Page Brief Builder

Generate a content brief for local service-area pages.

Tabs Spaces Converter

Free tabs and spaces converter for code snippets. Convert indentation between tabs and configurable spaces locally.

Troy Ounces to Grams Converter

Convert troy ounces to grams and grams to troy ounces using the precious-metals standard, with precise results calculated privately in your browser.

are to sq meter Converter

Free are to sq meter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Area Converter

Free area converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

bit to kilobyte Converter

Free bit to kilobyte converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

cu centimeter to US fluid ounce Converter

Free cu centimeter to us fluid ounce converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Cubic Meters to US Gallons

Convert cubic meters to US liquid gallons and gallons to cubic meters using the exact US definition, with precise volume results in your browser.

Feature to Benefit Converter

Turn product or service features into customer-focused benefit statements using local templates and editable output.

Feet to Inches Converter

Convert feet to inches and inches to feet instantly, with exact whole-number scaling, reverse conversion, and a practical table in your browser.

Fraction to Decimal

Free fraction to decimal that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

gigabit/second to megabit/second Converter

Free gigabit/second to megabit/second converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Hands to Centimeters Converter

Convert horse-height hands to centimeters and centimeters to hands using the exact four-inch definition, with precise results in your browser.

Kilocalories to Kilojoules

Convert kilocalories to kilojoules and kilojoules to kilocalories using the exact 4.184 factor, with precise energy results in your browser.

Kilowatt-Hours to Joules

Convert kilowatt-hours to joules and joules to kilowatt-hours using the exact energy relationship, with precise results calculated in your browser.

Mach to kilometer/hour Converter

Free mach to kilometer/hour converter with exact speed math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Markdown to Table Data

Free Markdown table to CSV converter that parses pipe tables back into rows. Clean docs tables into reusable data locally with copy output now.

megabit/second to kilobit/second Converter

Free megabit/second to kilobit/second converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

megabyte to gigabyte Converter

Free megabyte to gigabyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

micron to inch Converter

Free micron to inch converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

mil to millimeter Converter

Free mil to millimeter converter with exact length math, reverse conversion, copy-ready output, and a quick reference table in your browser.

millibar to pound/sq inch Converter

Free millibar to pound/sq inch converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Number Base Converter

Free number base converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Pascal’s Triangle Generator

Free Pascal triangle generator that builds every row from zero through your selected index and shows binomial coefficients privately in your browser.

PSI to Bar Converter

Convert PSI to bar and bar to PSI using the standard pressure relationship, with six-significant-figure results and a quick table in your browser.

Roman Numeral Converter

Free roman numeral converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Shoe Size Converter

Free shoe size converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Speed Converter

Free speed converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

sq foot to acre Converter

Free sq foot to acre converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

sq meter to hectare Converter

Free sq meter to hectare converter with exact area math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Time Duration Converter

Free time duration converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Typing Speed Test

Free typing speed test that measures WPM, accuracy, and progress against a sample paragraph directly in your browser.

US Teaspoons to Milliliters

Convert US teaspoons to milliliters and milliliters to US teaspoons with precise customary-volume results and a quick table in your browser.

Weight Mass Converter

Free weight mass converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

year to day Converter

Free year to day converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

A1C Average Glucose Converter

Convert A1C to estimated average glucose using the ADAG formula. Everything is computed locally in your browser, with no uploads and no sign-ups.

A1C to Average Glucose Converter

Free a1c to average glucose converter with labeled inputs and an immediate result. It estimates eAG from a laboratory A1C percentage privately in your browser.

Angle Converter

Free angle converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

angstrom to nanometer Converter

Free angstrom to nanometer converter with exact length math, reverse conversion, copy-ready output, and a quick reference table in your browser.

APR to APY Converter

Convert APR to APY with a manual compounding frequency so savings and loan rates can be compared. It runs entirely in your browser, with no uploads or accounts.

Atmospheres to PSI Converter

Convert standard atmospheres to PSI and PSI to atmospheres using the exact reference pressure, with six-significant-figure results in your browser.

Bar Duration Calculator

Calculate the duration of a bar from beats per bar and the tempo. Everything is computed locally in your browser, with no uploads and no sign-ups.

Beat Duration Calculator

Calculate the duration of one beat from the tempo in BPM. Everything is computed locally in your browser, with no uploads and no sign-ups.

beat/minute to hertz Converter

Free beat/minute to hertz converter with exact frequency math, reverse conversion, copy-ready output, and a quick reference table in your browser.

chain to meter Converter

Free chain to meter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Cholesterol Unit Converter

Free cholesterol unit converter with labeled inputs and an immediate result. It converts cholesterol from mg/dL to mmol/L privately in your browser.

cord to cu foot Converter

Free cord to cu foot converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

cu yard to cu meter Converter

Free cu yard to cu meter converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

cubit to centimeter Converter

Free cubit to centimeter converter with exact length math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Data Size Converter

Free data size converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

day to week Converter

Free day to week converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Decimal to Fraction Converter

Free decimal to fraction converter: turn any decimal into its simplest fraction and mixed number, in your browser.

Degrees & Radians Converter

Free degrees to radians converter: switch between degrees and radians both ways, with multiples of pi, in your browser.

electronvolt to joule Converter

Free electronvolt to joule converter with exact energy math, reverse conversion, copy-ready output, and a quick reference table in your browser.

fathom to foot Converter

Free fathom to foot converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Fathoms to Meters Converter

Convert international fathoms to meters and meters to fathoms using the exact six-foot definition, with precise results calculated in your browser.

foot to yard Converter

Free foot to yard converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

foot/second to meter/second Converter

Free foot/second to meter/second converter with exact speed math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Fuel Economy Converter

Free fuel economy converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

gibibyte to mebibyte Converter

Free gibibyte to mebibyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

grain to gram Converter

Free grain to gram converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Grams to Ounces Converter

Convert grams to ounces and ounces to grams using the international avoirdupois ounce, with six-significant-figure results privately in your browser.

HTML to JSX Converter

Free HTML to JSX converter that safely parses markup and securely rewrites attributes, inline styles, comments, void tags, and text in your browser.

inch of mercury to pound/sq inch Converter

Free inch of mercury to pound/sq inch converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

kilohertz to megahertz Converter

Free kilohertz to megahertz converter with exact frequency math, reverse conversion, copy-ready output, and a quick reference table in your browser.

kilojoule to kilocalorie Converter

Free kilojoule to kilocalorie converter with exact energy math, reverse conversion, copy-ready output, and a quick reference table in your browser.

kilowatt to BTU/hour Converter

Free kilowatt to btu/hour converter with exact power math, reverse conversion, copy-ready output, and a quick reference table in your browser.

league to kilometer Converter

Free league to kilometer converter with exact length math, reverse conversion, copy-ready output, and a quick reference table in your browser.

link to meter Converter

Free link to meter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Mach to MPH Converter

Free mach to mph converter. It converts Mach values to miles per hour using a stated speed of sound and keeps entered data private in your browser.

Markdown to HTML Converter

Convert common Markdown headings, lists, links, bold, italic, code, and paragraphs into escaped HTML locally.

megabit to megabyte Converter

Free megabit to megabyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

megapascal to pound/sq inch Converter

Free megapascal to pound/sq inch converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Meters to Feet Converter

Convert meters to feet and feet to meters using the international foot definition, with six-significant-figure results calculated in your browser.

minute to hour Converter

Free minute to hour converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Number to Ordinal Converter

Free number to ordinal converter: turn numbers into their ordinal form like 1st, 2nd, 3rd, computed in your browser.

oil barrel to US gallon Converter

Free oil barrel to us gallon converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Ordinal Number to Word Converter

Free ordinal number to word converter spells whole-number positions such as forty-second. Runs in your browser; no uploads or accounts are used.

parsec to light-year Converter

Free parsec to light-year converter with exact length math, reverse conversion, copy-ready output, and a quick reference table in your browser.

pascal to pound/sq inch Converter

Free pascal to pound/sq inch converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

pennyweight to gram Converter

Free pennyweight to gram converter with exact mass math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Polygon Area Calculator

Free polygon area calculator using the shoelace formula on ordered coordinate pairs, with signed orientation and absolute area in your browser.

pound to ounce Converter

Free pound to ounce converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Power Converter

Free power converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Punycode IDN Converter

Convert internationalized domain labels to ASCII Punycode and decode xn-- labels to Unicode using the RFC 3492 algorithm in your browser safely now.

revolution/minute to hertz Converter

Free revolution/minute to hertz converter with exact frequency math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Satoshi BTC Converter

Convert between satoshis and BTC exactly with manual units and no price lookup or network request. It runs locally in your browser with no uploads.

Satoshi to Bitcoin Converter

Free satoshi to bitcoin converter with labeled inputs and an immediate result. It converts between satoshis and bitcoin units privately in your browser.

Scientific Notation Converter

Free scientific notation converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

sq inch to sq centimeter Converter

Free sq inch to sq centimeter converter with exact area math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Square Feet to Square Meters

Convert square feet to square meters and square meters to square feet using the exact area factor, with precise results calculated in your browser.

Sugar Grams to Cups Converter

Convert granulated sugar grams to US cups and cups to grams using a 200-gram kitchen convention, with practical results calculated in your browser.

Syrup Ratio Calculator

Calculate water and total syrup from sugar weight and a sugar-to-water ratio. Everything is calculated locally in your browser, with no uploads or sign-ups.

tebibyte to gibibyte Converter

Free tebibyte to gibibyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Temperature Converter

Free temperature converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

terabyte to gigabyte Converter

Free terabyte to gigabyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

therm to kilowatt-hour Converter

Free therm to kilowatt-hour converter with exact energy math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Tire Pressure Converter

Free tire pressure converter: convert between PSI, bar, kPa, and atmospheres, computed locally in your browser.

US bushel to liter Converter

Free us bushel to liter converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US cup to tablespoon Converter

Free us cup to tablespoon converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US fluid ounce to tablespoon Converter

Free us fluid ounce to tablespoon converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US Fluid Ounces to Cups

Convert US fluid ounces to US cups and cups to fluid ounces with exact customary scaling, clear regional labels, and results in your browser.

US Quarts to Liters Converter

Convert US liquid quarts to liters and liters to US quarts with the exact customary factor, six-significant-figure results, in your browser.

Volume Converter

Free volume converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Water Grams to Cups Converter

Convert water grams to US cups and cups to grams using a 236.6-gram room-temperature convention, with precise results calculated in your browser.

Weekly Volume Lift Calculator

Calculate weekly rep volume from sets and reps per set. Everything is computed locally in your browser, with no uploads and no sign-ups.

Wind Speed Converter

Free wind speed converter: convert between mph, km/h, m/s, and knots, computed locally in your browser.

Yards to Meters Converter

Convert yards to meters and meters to yards using the exact international yard definition, with precise results and a quick table in your browser.

Acceleration Converter

Free acceleration converter: convert between m/s², ft/s², g-force, and gal, computed locally in your browser.

acre to sq mile Converter

Free acre to sq mile converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

acre-foot to US gallon Converter

Free acre-foot to us gallon converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Alcohol Proof Converter

Free alcohol proof converter that converts US proof and alcohol by volume. Review labeled assumptions and a worked result calculated privately in your browser.

APR to APY Calculator

Free apr to apy calculator with labeled inputs and an immediate result. It converts nominal APR to compounded annual yield privately in your browser.

APY to APR Calculator

Free apy to apr calculator with labeled inputs and an immediate result. It converts effective annual yield to nominal APR privately in your browser.

Arc Length Calculator

Free arc length calculator with labeled inputs and an immediate result. It finds circular arc length from radius and angle privately in your browser.

barn to sq meter Converter

Free barn to sq meter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

board foot to cu inch Converter

Free board foot to cu inch converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Body Surface Area Mosteller

Calculate body surface area. Every value is computed locally in your browser, so nothing is uploaded, stored, or shared, and no account is needed.

BTU to Joules Converter

Convert British thermal units to joules and joules to BTU using the standard thermochemical factor, with precise energy results in your browser.

Butter Grams to Cups Converter

Convert butter grams to US cups and cups to grams using the common 227-gram cup convention, with recipe-ready results calculated in your browser.

byte to kibibyte Converter

Free byte to kibibyte converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Carats to Grams Converter

Convert carats to grams and grams to carats with the exact metric gemstone definition, decimal inputs, and a practical reference table in your browser.

Carpet Roll Length Calculator

Calculate linear feet of carpet needed from room area and roll width. Everything is calculated locally in your browser, with no uploads or sign-ups.

Celsius to Kelvin Converter

Convert Celsius to kelvins and kelvins to Celsius using the exact 273.15 offset, with precise scientific results calculated in your browser.

Centimeters to Feet Converter

Convert centimeters to decimal feet and feet to centimeters using the international-foot definition, with clear, precise results in your browser.

Compression Ratio Calculator

Free compression ratio calculator with an immediate result. It calculates engine compression from swept and clearance volume privately in your browser.

cu inch to cu centimeter Converter

Free cu inch to cu centimeter converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

dram to gram Converter

Free dram to gram converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Energy Converter

Free energy converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

erg to joule Converter

Free erg to joule converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Fahrenheit to Kelvin Converter

Convert Fahrenheit to kelvins and kelvins to Fahrenheit with the exact scale and offset formulas, with clear, precise results in your browser.

Flour Grams to Cups Converter

Convert flour grams to US cups and cups to grams using a 120-gram baking convention, with recipe-ready decimal results calculated in your browser.

Flow Rate Converter

Free flow rate converter: convert between litres per minute, cubic metres per hour, GPM, and CFM, in your browser.

foot-pound to joule Converter

Free foot-pound to joule converter with exact energy math, reverse conversion, copy-ready output, and a quick reference table in your browser.

fortnight to day Converter

Free fortnight to day converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

FPS to MPH Converter

Convert feet per second to miles per hour and MPH back to FPS with six-significant-figure results, calculated privately in your browser on any device.

gigabit to gigabyte Converter

Free gigabit to gigabyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Gigabytes to Gibibytes Converter

Convert decimal gigabytes to binary gibibytes and gibibytes to gigabytes using exact byte definitions, with precise results in your browser.

Glucose Unit Converter

Free glucose unit converter that converts glucose between mg/dL and mmol/L. Review labeled assumptions and a worked result calculated privately in your browser.

hand to inch Converter

Free hand to inch converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

hectopascal to inch of mercury Converter

Free hectopascal to inch of mercury converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

hertz to kilohertz Converter

Free hertz to kilohertz converter with exact frequency math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Horsepower to Kilowatts Converter

Convert mechanical horsepower to kilowatts and kilowatts to horsepower using the standard power factor, with precise results in your browser.

hour to day Converter

Free hour to day converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Kilobytes to Kibibytes Converter

Convert decimal kilobytes to binary kibibytes and kibibytes to kilobytes using exact byte definitions, with precise results in your browser.

Kilograms to Stone Converter

Convert kilograms to decimal stone and stone to kilograms using the international avoirdupois definition, with precise results in your browser.

Kilometers to Miles Converter

Convert kilometers to miles and miles to kilometers using the standard international factor, with a practical reference table in your browser.

Knots to KM/H Converter

Convert knots to kilometers per hour and back using the exact 1.852-kilometer nautical mile, with a clear, practical speed table in your browser.

Knots to MPH Converter

Convert knots to miles per hour and miles per hour to knots using the international nautical mile, with precise speed results in your browser.

KPA to PSI Converter

Convert kilopascals to PSI and PSI to kilopascals using the standard pressure factor, with precise results and a reference table in your browser.

Length Converter

Free length converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

liter to oil barrel Converter

Free liter to oil barrel converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Liters to Cubic Feet Converter

Convert liters to cubic feet and cubic feet to liters using the exact international-foot volume relationship, with precise results in your browser.

Liters to US Gallons Converter

Convert liters to US gallons and US gallons to liters using the exact US liquid-gallon definition, with a practical reference table in your browser.

Markdown to JSX Converter

Free Markdown to JSX converter that parses headings, paragraphs, lists, quotes, links, emphasis, inline code, and fenced blocks in your browser.

mebibyte to kibibyte Converter

Free mebibyte to kibibyte converter with exact data math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Megabytes to Mebibytes Converter

Convert decimal megabytes to binary mebibytes and mebibytes to megabytes using exact byte definitions, with precise results in your browser.

megahertz to gigahertz Converter

Free megahertz to gigahertz converter with exact frequency math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Metric Tonnes to US Tons Converter

Convert metric tonnes to US short tons and back using the standard mass relationship, with precise six-significant-figure results in your browser.

mil to inch Converter

Free mil to inch converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Milligrams to Grams Converter

Convert milligrams to grams and grams to milligrams using exact metric scaling, with six-significant-figure results calculated in your browser.

Millimeters to Centimeters

Convert millimeters to centimeters and centimeters to millimeters using exact metric scaling, with precise results and a table in your browser.

millisecond to second Converter

Free millisecond to second converter with exact time math, reverse conversion, copy-ready output, and a quick reference table in your browser.

month to year Converter

Free month to year converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

MPH to KM/H Converter

Convert miles per hour to kilometers per hour and back with the exact international mile factor, precise results, and a quick table in your browser.

nanosecond to microsecond Converter

Free nanosecond to microsecond converter with exact time math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Pond Volume Calculator

Calculate pond gallons from length, width, average depth, and shape factor. Everything is calculated locally in your browser, with no uploads or sign-ups.

Pressure Converter

Free pressure converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

Rice Grams to Cups Converter

Convert dry white rice grams to US cups and cups to grams using a 185-gram kitchen convention, with practical results calculated in your browser.

Ring Size Converter

Free ring size converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.

second to minute Converter

Free second to minute converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

slug to pound mass Converter

Free slug to pound mass converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

span to inch Converter

Free span to inch converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

speed of light to mile/hour Converter

Free speed of light to mile/hour converter with exact speed math, reverse conversion, copy-ready output, and a quick reference table in your browser.

sq kilometer to acre Converter

Free sq kilometer to acre converter with exact area math, reverse conversion, copy-ready output, and a quick reference table in your browser.

sq yard to sq foot Converter

Free sq yard to sq foot converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Square Miles to Square Kilometers

Convert square miles to square kilometers and back using the exact international area factor, with six-significant-figure results in your browser.

Square Yards to Square Meters

Convert square yards to square meters and back using the exact international area factor, with six-significant-figure results in your browser.

Stone to Pounds Converter

Convert stone to pounds and pounds to stone with the exact 14-pound definition, reverse conversion, and a practical reference table in your browser.

Storage Unit Fill Calculator

Calculate usable and empty volume from unit size and a fill percentage. Everything is calculated locally in your browser, with no uploads or sign-ups.

therm to joule Converter

Free therm to joule converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

torr to kilopascal Converter

Free torr to kilopascal converter with exact pressure math, reverse conversion, copy-ready output, and a quick reference table in your browser.

UK long ton to pound Converter

Free uk long ton to pound converter with exact mass math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US Cups to Milliliters Converter

Convert US cups to milliliters and milliliters to US cups using the standard legal cup volume, with precise recipe-ready results in your browser.

US gallon to US cup Converter

Free us gallon to us cup converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US peck to liter Converter

Free us peck to liter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

US pint to US cup Converter

Free us pint to us cup converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US Pints to Liters Converter

Convert US liquid pints to liters and liters to US pints using the exact customary definition, with clear, precise volume results in your browser.

US quart to US cup Converter

Free us quart to us cup converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

US short ton to pound Converter

Free us short ton to pound converter with exact mass math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Vector Angle Calculator

Free vector angle calculator using the dot product and vector magnitudes to return the included angle in degrees, calculated privately in your browser.

watt to horsepower Converter

Free watt to horsepower converter with exact power math, reverse conversion, copy-ready output, and a quick reference table in your browser.

week to average month Converter

Free week to average month converter with exact time math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Wei Gwei ETH Converter

Convert wei, gwei, and ETH units exactly with manual values and no live crypto pricing. It runs entirely in your browser — no uploads or accounts.

Window Film Area Calculator

Calculate total window film area from a window count and area each. Everything is calculated locally in your browser, with no uploads or sign-ups.

Acres to Hectares Converter

Convert acres to hectares and hectares to acres using the international area relationship, with six-significant-figure results in your browser.

APY to APR Converter

Convert APY to nominal APR for a selected compounding frequency with transparent local math. It runs entirely in your browser, with no uploads or accounts.

Body Surface Area Calculator

Free body surface area calculator with labeled inputs and an immediate result. It estimates adult body surface area with Mosteller privately in your browser.

Celsius to Fahrenheit Converter

Convert Celsius to Fahrenheit and Fahrenheit to Celsius with the exact affine formulas and clear six-significant-figure results in your browser.

cu foot to cu meter Converter

Free cu foot to cu meter converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Cycling Power Energy Calculator

Calculate work done in kilojoules from average power and duration. Everything is calculated locally in your browser, with no uploads or sign-ups.

Expense Ratio Drag Calculator

Estimate annual fund fee drag and long-term cost from balance, expense ratio, and years. It runs entirely in your browser — no uploads or accounts.

Force Converter

Free force converter: convert between newtons, kilonewtons, kilogram-force, pound-force, and dyne, in your browser.

hectare to sq kilometer Converter

Free hectare to sq kilometer converter with exact area math, reverse conversion, copy-ready output, and a quick reference table in your browser.

HTML to Markdown Converter

Free HTML to Markdown converter that parses a node tree and handles headings, links, lists, emphasis, code, images, quotes, and rules in your browser.

Kilograms to Pounds Converter

Convert kilograms to pounds and pounds to kilograms using the international avoirdupois factor, with precise results calculated in your browser.

meter/second to mile/hour Converter

Free meter/second to mile/hour converter with exact speed math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Miles to Feet Converter

Convert miles to feet and feet to miles with the exact 5,280-foot definition, reverse conversion, and a quick reference table in your browser.

Millimeters to Inches Converter

Convert millimeters to inches and inches to millimeters with precise results and a practical reference table, calculated privately in your browser.

MMHG to KPA Converter

Convert millimeters of mercury to kilopascals and back using the standard pressure factor, with precise results and a quick table in your browser.

Musical Note Duration Calculator

Free musical note duration calculator for a focused result. It converts BPM and note length into milliseconds with private local processing in your browser.

rod to meter Converter

Free rod to meter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

sq rod to sq meter Converter

Free sq rod to sq meter converter with exact factors, reverse conversion, copy-ready output, and a quick reference table that runs in your browser.

Table To Markdown With Alignment

Work with table to markdown with alignment in your browser with a live preview and one-click copy. Free, private, and instant in your browser.

tablespoon to teaspoon Converter

Free tablespoon to teaspoon converter with exact volume math, reverse conversion, copy-ready output, and a quick reference table in your browser.

Unit Economics Calculator

Calculate contribution per customer, contribution margin, and CAC payback from ARPU, costs, and CAC. It runs locally in your browser with no uploads.

US Tablespoons to Milliliters

Convert US tablespoons to milliliters and milliliters to US tablespoons with exact customary scaling and clear, practical results in your browser.