Fahrenheit to Celsius
Free instant fahrenheit to celsius converter. °C = (°F − 32) × 5 / 9.
Common Fahrenheit to Celsius values
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 0 | -17.7778 |
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 75 | 23.8889 |
| 100 | 37.7778 |
| 200 | 93.3333 |
| 212 | 100 |
How does Fahrenheit to Celsius conversion work?
Type a value in the Fahrenheit (°F) field and the equivalent in Celsius (°C) appears instantly to the right. The math uses the exact formula shown above — no rounding errors, no approximations beyond standard floating-point precision. Use the swap button to flip the units and see the inverse conversion.
Fahrenheit. The temperature unit used in the United States. 32 °F is the freezing point of water; 212 °F is the boiling point at sea level.
Celsius. The metric temperature unit. 0 °C is the freezing point of water; 100 °C is the boiling point at sea level.
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🎯 Accurate conversions
Conversion factors come from the official standard (NIST, BIPM, ISO definitions where applicable). Values are precise to standard floating-point limits.
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