Convert Fahrenheit to Celsius
°F to °C · temperature conversion
What are fahrenheit and celsius?
Fahrenheit puts water’s freezing point at 32° and boiling at 212°, and is used mainly in the United States. Celsius sets water’s freezing point at 0° and boiling at 100° at sea level, and is used by most of the world. For reference: a comfortable room is about 21 °C (70 °F), and normal body temperature is 37 °C (98.6 °F).
How to convert fahrenheit to celsius
Temperature scales don't share a zero point, so you can't convert by a single multiplier — use the formula °C = (°F − 32) × 5/9. For example, 0°F = -17.7778°C, 37°F = 2.77778°C, and 100°F = 37.7778°C.
Fahrenheit to Celsius conversion table
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 0 | -17.7778 |
| 10 | -12.2222 |
| 20 | -6.66667 |
| 25 | -3.88889 |
| 30 | -1.11111 |
| 37 | 2.77778 |
| 100 | 37.7778 |
FAQ
What is the formula to convert fahrenheit to celsius?
°C = (°F − 32) × 5/9. Temperature scales don't share a zero point, so you convert with this formula rather than a single multiplier.
What is 0 °F in °C?
0 °F = -17.7778 °C, and 100 °F = 37.7778 °C.
Why can't I just multiply fahrenheit by a number?
Because Fahrenheit and Celsius start counting from different zero points, multiplication alone would give the wrong answer — you also have to shift the scale, which the formula above handles.