All Tools VerseTemperature Converter - Celsius, Fahrenheit, Kelvin
Free temperature converter. Switch between Celsius, Fahrenheit and Kelvin instantly. Runs in your browser, private and offline.
- Runs in your browser
- Nothing uploaded
- Free, no sign-up
Convert temperature between Celsius, Fahrenheit and Kelvin. The result updates instantly in your browser, with the formula shown.
How to Use Temperature Converter - Celsius, Fahrenheit, Kelvin
- Enter your value. Type the temperature you want to convert in the Value box.
- Pick the From unit. Choose the unit your value is in, such as Celsius.
- Pick the To unit. Choose the unit you want the answer in, such as Fahrenheit. Use the swap button to flip them.
- Read the result. The converted value shows instantly, with the full formula below it.
- See every unit. The table lists your value in all temperature units at once, and you can copy the result or a share link.
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by 9, divide by 5, then add 32. For example, 100 degrees Celsius is 212 degrees Fahrenheit. The tool applies this formula for you.
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then multiply by 5 and divide by 9. For example, 98.6 degrees Fahrenheit is 37 degrees Celsius.
What is Kelvin?
Kelvin is the scientific temperature scale that starts at absolute zero. To convert Celsius to Kelvin add 273.15; to convert Kelvin to Celsius subtract 273.15.
What is the freezing point of water?
Water freezes at 0 degrees Celsius, which is 32 degrees Fahrenheit or 273.15 Kelvin. You can confirm this by entering 0 with Celsius selected.
Is my data sent anywhere?
No. The conversion runs entirely in your browser, so the values you enter never leave your computer and it works offline once loaded.
Can it handle negative temperatures?
Yes. You can enter negative values, such as minus 40, which is the point where Celsius and Fahrenheit read the same.
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