Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine instantly.
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How to use the Temperature Converter
The temperature converter switches between Celsius, Fahrenheit, Kelvin and Rankine. Temperature is the one common conversion that is not a simple multiplication, because the scales start at different zero points; the converter applies the right formula and shows it for the values you enter.
- 1 Enter a temperature and choose its scale.
- 2 Choose the scale to convert to.
- 3 Read the result and the full list of conversions.
Example and practical tips
0 °C = 32 °F = 273.15 K. Body temperature of 37 °C is 98.6 °F, and a 200 °C oven is 392 °F.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. For example, 25 °C × 1.8 + 32 = 77 °F.
How do I convert Fahrenheit to Celsius?
Subtract 32 and multiply by 5/9. For example, (98.6 − 32) × 5/9 = 37 °C.
What is Kelvin?
Kelvin is the scientific scale that starts at absolute zero, the coldest possible temperature. 0 K is −273.15 °C.