°C to °F
Celsius to fahrenheit
SI definitions factors
Temperature conversions
Temperature conversions between Celsius and Fahrenheit. Unlike length or weight, temperature scales have different zero points, so converting uses a formula rather than a single factor: °F = °C × 9/5 + 32.
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Every page includes the exact factor and a reference table
°F to °C
Fahrenheit to celsius
Reference
All temperature units
Factors trace back to SI definitions
| Unit | Symbol | Factor |
|---|---|---|
| Celsius | °C | formula °F = °C × 9/5 + 32 (exact) |
| Fahrenheit | °F | formula °C = (°F − 32) × 5/9 (exact) |
Factors are exact definitions; results are
rounded only for display.
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