Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin and Rankine.
Converted locally in your browser — nothing is uploaded.
- Enter one scale, see the other two at once.
- Shows the conversion formula next to the result.
- Runs in your browser — instant, no ads over the answer.
Why this is private
- Converted locally in your browser — nothing is uploaded.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Converts temperature between Celsius, Fahrenheit, Kelvin and Rankine.
How to use it
- 1Enter a temperature and pick its unit.
- 2The equivalent in the other two scales appears instantly.
Formula
Celsius to Fahrenheit
°F = °C × 9/5 + 32
Fahrenheit to Celsius
°C = (°F − 32) × 5/9
Celsius to Kelvin
K = °C + 273.15
Celsius to Rankine
°R = (°C + 273.15) × 9/5
Frequently asked questions
What people use it for
Convert an oven temperatureTurn a 180 °C recipe into 356 °F, or the reverse.
Read an overseas weather forecastConvert a Fahrenheit forecast to Celsius at a glance.
Set a thermostat or appliance in the other scaleMatch a target temperature when the device uses different units.
Check a scientific value in Kelvin or RankineConvert a lab, engineering or datasheet figure to or from Kelvin or Rankine.
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Temperature Converter