Temperature converter

Convert Celsius, Fahrenheit and Kelvin with an absolute-zero check.

Numbers Stateless

Maximum input length per field: 62 Unicode code points. See the operation limits in the instructions.

Quick guide

Try it with your own data when you’re ready.

Try an example

You enter

Temperature value
0
Input unit
Celsius (°C)

You get

Celsius (°C)
0
Fahrenheit (°F)
32.00
Kelvin (K)
273.15
How it works & limits

Choose the input unit and use a decimal point, with at most 30 digits on either side. Temperatures below absolute zero are rejected.

Results use 12 significant digits. Example: 0 °C equals 32 °F and 273.15 K.

Kelvin uses no degree symbol.