Home › Unit Converters › Temperature
Temperature Converter — °C, °F, K, °R
Type a value in any box — every other unit updates instantly.
Exact formulas — no rounding errors.
Temperature Conversion Table
| Unit | Equals |
|---|---|
| Celsius (°C) | °C = (°F − 32) × 5/9 = K − 273.15 |
| Fahrenheit (°F) | °F = °C × 9/5 + 32 |
| Kelvin (K) | K = °C + 273.15 |
| Rankine (°R) | °R = (°C + 273.15) × 9/5 |
FAQ
How do you convert Fahrenheit to Celsius?
Subtract 32, multiply by 5/9: °C = (°F − 32) × 5/9. For example, 212 °F = 100 °C.
What is absolute zero in Celsius and Fahrenheit?
Absolute zero is 0 K = −273.15 °C = −459.67 °F.
Is this converter free to use?
Yes. All tools on CalcConvert Tools are free, work in your browser, and require no sign-up.