fahrenheit to celsius converter
1 Fahrenheit equals -17.222222 Celsius. Conversions use °C = °F × 0.555556 − 17.778
°F → -17.222222 °C
°C = °F × 0.555556 − 17.778
Converter
Worked examples
- 1 °F = -17.222222 °C
- 2 °F = -16.666667 °C
- 5 °F = -15 °C
- 10 °F = -12.222222 °C
- 100 °F = 37.777778 °C
Fahrenheit to Celsius conversion table
| °F | °C | Arithmetic |
|---|---|---|
| 32 °F | 0 °C | × 0.555556 − 17.778 |
| 50 °F | 10 °C | × 0.555556 − 17.778 |
| 68 °F | 20 °C | × 0.555556 − 17.778 |
| 70 °F | 21.111111 °C | × 0.555556 − 17.778 |
| 72 °F | 22.222222 °C | × 0.555556 − 17.778 |
| 75 °F | 23.888889 °C | × 0.555556 − 17.778 |
| 80 °F | 26.666667 °C | × 0.555556 − 17.778 |
| 85 °F | 29.444444 °C | × 0.555556 − 17.778 |
| 90 °F | 32.222222 °C | × 0.555556 − 17.778 |
| 95 °F | 35 °C | × 0.555556 − 17.778 |
| 98.6 °F | 37 °C | × 0.555556 − 17.778 |
| 100 °F | 37.777778 °C | × 0.555556 − 17.778 |
| 212 °F | 100 °C | × 0.555556 − 17.778 |
| 350 °F | 176.667 °C | × 0.555556 − 17.778 |
| 400 °F | 204.444 °C | × 0.555556 − 17.778 |
| -40 °F | -40 °C | × 0.555556 − 17.778 |
| -20 °F | -28.888889 °C | × 0.555556 − 17.778 |
| -10 °F | -23.333333 °C | × 0.555556 − 17.778 |
| 0 °F | -17.777778 °C | × 0.555556 − 17.778 |
| 10 °F | -12.222222 °C | × 0.555556 − 17.778 |
| 15 °F | -9.444444 °C | × 0.555556 − 17.778 |
| 20 °F | -6.666667 °C | × 0.555556 − 17.778 |
| 25 °F | -3.888889 °C | × 0.555556 − 17.778 |
| 30 °F | -1.111111 °C | × 0.555556 − 17.778 |
| 35 °F | 1.666667 °C | × 0.555556 − 17.778 |
| 37 °F | 2.777778 °C | × 0.555556 − 17.778 |
How to convert °F to °C
- Take your value in Fahrenheit.
- Multiply by 0.555556, then apply the offset -17.778
- That is your answer in Celsius — no rounding needed until you choose a display precision.
Related conversions
°C to °F°C to K°F to KK to °Call temperature units
Questions
How many Celsius in 1 Fahrenheit?
Exactly -17.222222 °C. The factor follows from the definitions of both units, not from a measurement, so it is exact.
How do I convert °F to °C?
Multiply the Fahrenheit figure by 0.555556 and then apply the offset -17.778 — or use the converter above, which updates as you type.
Is °F to °C the same as °C to °F?
No — they are inverses. One °F is -17.222222 °C, while one °C is 33.8 °F.
What is 32 °F in °C?
32 °F = 0 °C (see the value page for the full arithmetic).