Temperature converter
Celsius, Fahrenheit and Kelvin.
Runs in your browserNo sign-upNo watermark
Quick answer
To convert temperature units, type a number, choose the unit you have and the unit you want. The answer updates as you type.
1 °C = 33.8 °F
1 °C in every temperature unit
| Celsius | 1 °C |
|---|---|
| Fahrenheit | 33.8 °F |
| Kelvin | 274.15 K |
How to use the temperature tool
- Type the number you want to convert.
- Choose the unit you have in "From" and the one you want in "To".
- Read the answer. The ⇄ button swaps the two units, and the table shows every unit at once.
This temperature converter uses exact conversion factors and shows the result with up to 10 significant digits.
Common questions
How do I convert Celsius to Fahrenheit?
Multiply by 9, divide by 5, then add 32. So 100 °C is 212 °F and 0 °C is 32 °F.
At what temperature are Celsius and Fahrenheit equal?
At -40. Both scales read -40 at that point.
How accurate is it?
It uses the exact defined conversion factors and shows up to 10 significant digits, so rounding noise is hidden but real precision is kept.
Does it work offline?
Once the page has loaded, yes: it calculates in your browser and sends nothing anywhere.