Unit Converters
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
FreeNo sign-upWorks in your browser
Celsius (°C)
100.00
Fahrenheit (°F)
212.00
Kelvin (K)
373.15
About the Temperature Converter
Convert temperatures free between Celsius, Fahrenheit, and Kelvin — the classic °C to °F and °F to °C conversions plus the scientific Kelvin scale, all updating as you type (100°C = 212°F; 0 K = −273.15°C). Perfect for weather abroad, oven settings in foreign recipes, lab work, and school.
How to use the Temperature Converter
- 1Enter a temperature.
- 2Choose its unit.
- 3Read the value in all three scales.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. For example, 100°C × 9/5 + 32 = 212°F.
What is absolute zero?
0 Kelvin (−273.15°C), the lowest possible temperature.
At what temperature are Celsius and Fahrenheit equal?
−40° — the one point where both scales read the same number.