QUICK CONVERSION
Fahrenheit to Celsius
Enter a value to convert fahrenheit to celsius, or use the right-hand input to convert in reverse.
How to convert fahrenheit to celsius
These temperature scales have different zero points, so conversion requires a scale factor and an offset. The calculator applies the correct temperature formula automatically.
For example, 0 °F equals -17.7777777778 °C.
Common conversion values
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 0 | -17.7777777778 |
| 1 | -17.2222222222 |
| 2 | -16.6666666667 |
| 5 | -15 |
| 10 | -12.2222222222 |
| 20 | -6.66666666667 |
| 25 | -3.88888888889 |
| 50 | 10 |
| 100 | 37.7777777778 |
| 500 | 260 |
| 1000 | 537.777777778 |
Important measurement notes
Temperature values are absolute readings, not temperature differences; the conversion therefore includes an offset where required.
Related conversions
Figures are rounded for display. For regulated or safety-critical work, confirm the relevant measurement standard and precision.