Temperature Converter

This temperature converter switches instantly between Celsius, Fahrenheit, and Kelvin.

Conversion formulas

ConversionFormula
Celsius → Fahrenheit°F = °C × 9/5 + 32
Fahrenheit → Celsius°C = (°F − 32) × 5/9
Celsius → KelvinK = °C + 273.15

Handy reference points: water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F); normal body temperature is about 37 °C (98.6 °F).

Frequently asked questions

How do I convert Celsius to Fahrenheit?

Multiply by 9/5 and add 32. For example, 20 °C = 20 × 9/5 + 32 = 68 °F.

What is 100 °F in Celsius?

About 37.8 °C, just above normal body temperature.

What is absolute zero?

Absolute zero is 0 Kelvin, equal to −273.15 °C, the lowest possible temperature.

Results are provided for general information. Double-check important figures independently.