14 free tools · Private · In-Browser

Travel & Geo Tools

Calculators for trips and maps: convert GPS coordinates, measure the distance and bearing between two points, find a geographic midpoint, estimate road trip fuel, and work out mileage reimbursement or lease miles.

GPS Coordinate Converter

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

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Bearing Calculator

Free compass bearing calculator: find the initial bearing from one coordinate to another, in your browser.

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Haversine Distance Calculator

Free haversine distance calculator: find the great-circle distance between two latitude and longitude points, in your browser.

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kilometer to nautical mile Converter

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

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Midpoint Calculator (Geographic)

Free geographic midpoint calculator: find the great-circle midpoint between two coordinates, computed in your browser.

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Mileage Calculator for Reimbursement

Free mileage calculator for reimbursement: multiply your business miles by the rate per mile you enter to get the amount owed, privately in your browser.

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Road Trip Fuel Calculator

Calculate gallons needed from trip distance and fuel economy. Everything is computed locally in your browser, with no uploads and no sign-ups.

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Speed, Distance & Time Calculator

Free speed distance time calculator: solve any one of speed, distance, or time from the other two, in your browser.

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Fuel Cost Calculator

Free fuel cost calculator: estimate the fuel cost of a trip from distance, fuel economy, and price, in your browser.

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Gas Mileage Calculator

Free gas mileage calculator: find your fuel economy in MPG, km/L, and L/100km from miles and fuel used, in your browser.

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Nautical Miles to Kilometers

Convert nautical miles to kilometers and kilometers to nautical miles using the exact 1.852 km definition, with results calculated in your browser.

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Oil Change Mileage Calculator

Calculate the next oil-change odometer from the current reading and an interval. Everything is calculated locally in your browser, with no uploads or sign-ups.

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Road Trip Cost Calculator

Free road trip cost calculator: split fuel costs for a round trip among passengers, computed locally in your browser.

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Vehicle Lease Mileage Calculator

Calculate lease miles used and remaining from an allowance and a used percentage. Everything is calculated locally in your browser, with no uploads or sign-ups.

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