Convert Fahrenheit to Celsius
Convert Fahrenheit to Celsius using °C = (°F − 32) × 5/9. Enter a temperature to see the result instantly.
Convert Fahrenheit to Celsius
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How to convert Fahrenheit to Celsius
Use the formula °C = (°F − 32) × 5/9. For example, 98.6°F = 37°C.
Quick mental estimate: subtract 30 and halve it (70 °F → 20 °C, real answer 21.1 °C).
Fahrenheit to Celsius conversion table
| Fahrenheit | Celsius |
|---|---|
| 0 °F | -17.78 °C |
| 32 °F | 0 °C |
| 50 °F | 10 °C |
| 68 °F | 20 °C |
| 72 °F | 22.22 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.78 °C |
| 212 °F | 100 °C |
| Celsius | Fahrenheit |
|---|---|
| -40 °C | -40 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 100 °C | 212 °F |
About converting Fahrenheit to Celsius
Fahrenheit (°F) and Celsius (°C) are temperature scales with different zero points, so they convert with a formula rather than a single multiplier: °C = (°F − 32) × 5/9.
Type any temperature above to convert it instantly. For the opposite direction, use the Celsius to Fahrenheit converter, or the full unit converter.
Reference temperatures
| Reference point | Celsius | Fahrenheit | Kelvin |
|---|---|---|---|
| Absolute zero | -273.15 °C | -459.67 °F | 0 K |
| Coldest air temperature recorded (Vostok, 1983) | -89.2 °C | -128.56 °F | 183.95 K |
| Water freezes | 0 °C | 32 °F | 273.15 K |
| Comfortable room | ≈ 20 °C | ≈ 68 °F | ≈ 293.15 K |
| Normal body temperature | ≈ 37 °C | ≈ 98.6 °F | ≈ 310.15 K |
| Hottest air temperature recorded (Death Valley, 1913) | 56.7 °C | 134.06 °F | 329.85 K |
| Water boils at sea level | 100 °C | 212 °F | 373.15 K |
| Moderate oven (gas mark 4) | 180 °C | 356 °F | 453.15 K |
The scales
Water freezes at 32 °F and boils at 212 °F at sea level, so a 1 °F step is 5/9 of a 1 °C step.
Used for: Weather and cooking in the US.
The scale used by most of the world: water freezes at 0 °C and boils at 100 °C at sea level; 0 °C = 273.15 K.
Used for: Weather, cooking and medicine worldwide.
−40 is the one temperature that reads the same in Celsius and Fahrenheit.