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🌡️ Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin with the formulas shown, for weather, cooking and science.
Formulas: °F = (°C × 9/5) + 32 · K = °C + 273.15 · °C = (°F − 32) × 5/9
About this Temperature Converter
This temperature converter moves between the three temperature scales: Celsius for everyday weather in most countries, Fahrenheit in the US, and Kelvin in science. The exact formulas are printed on the tool so students can see how the answer is produced, not just the answer.
How to use it
- Enter the temperature.
- Choose the scale it is in and the scale you want.
- Click Convert — all three scales are shown in the table.
Example
Water boils at 100 °C, which is 212 °F or 373.15 K; a normal body temperature of 37 °C is 98.6 °F.
Frequently asked questions
Where do Celsius and Fahrenheit meet?
At −40: −40 °C and −40 °F are the same temperature, the only point where the scales cross.
Why does Kelvin have no degree symbol?
Kelvin is an absolute scale starting at absolute zero (0 K), so it is written simply as K, not °K.
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