Unit converter
Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius quickly and precisely. Subtract 32 and multiply by 5/9 to move from the US temperature scale to the one used almost everywhere else in the world.
Formula
°C = (°F − 32) × 5/9
Example: 100 °F − 32 = 68; 68 × 5/9 ≈ 37.78 °C.
Fahrenheit to Celsius conversion chart
| Degrees Fahrenheit (°F) | Degrees Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| -20 °F | -28.8889 °C |
| 0 °F | -17.7778 °C |
| 10 °F | -12.2222 °C |
| 20 °F | -6.6667 °C |
| 32 °F | 0 °C |
| 40 °F | 4.4444 °C |
| 50 °F | 10 °C |
| 60 °F | 15.5556 °C |
| 68 °F | 20 °C |
| 72 °F | 22.2222 °C |
| 80 °F | 26.6667 °C |
| 90 °F | 32.2222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.7778 °C |
| 110 °F | 43.3333 °C |
| 212 °F | 100 °C |
Frequently asked questions
- What is 100 °F in Celsius?
- 100 °F equals about 37.78 °C — just above normal human body temperature (37 °C).
- How do I convert Fahrenheit to Celsius quickly?
- Subtract 30, then divide by 2. For 70 °F: 40 ÷ 2 = 20 °C (exact 21.1). Fine for daily weather.
- Is 98.6 °F really body temperature?
- 98.6 °F equals 37.0 °C. Modern studies suggest average body temperature is slightly lower (around 36.6 °C), but 37 °C is still the widely cited reference.