Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin.
Temperature, converted
The three scales relate by fixed formulas: Fahrenheit is Celsius times nine-fifths plus 32. Water boils at 100°C, 212°F, or 373.15 K, the reference points this uses.
It handles the everyday Celsius-to-Fahrenheit swap for weather and cooking, plus the Kelvin conversions science and engineering need, all from one entry.
Absolute zero
Kelvin starts at absolute zero, so it never goes negative. The math runs in your browser and is never uploaded. For quick reference, 20°C is a mild 68°F, body temperature is 37°C or 98.6°F, and absolute zero sits at −273.15°C. That makes it the everyday tool for a foreign forecast, an oven setting in a recipe, or a scientific value in kelvin.
Frequently Asked Questions
How does the temperature converter work?
Temperature uses formulas instead of simple factors: Fahrenheit subtracts 32 then multiplies by 5/9, while Kelvin offsets Celsius by 273.15.
When should I use this converter?
Use it for weather notes, oven temperatures, lab examples, HVAC settings, or converting international product documentation.
What is the main limitation?
Kelvin cannot go below absolute zero, so the tool flags physically impossible converted values.
Is this converter private?
Yes. The conversion runs entirely in your browser, so your values are not uploaded, stored, or sent to a server.
More free browser utilities for conversion, formatting, and technical cleanup.