Temperature
Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius with the exact formula, a worked example and a quick conversion table.
Smart input
β
Quick values:
Conversion formula
The exact formula applied:
β
Conversion formula
Β°C = (Β°F β 32) Γ 5/9
Β°F = Β°C Γ 9/5 + 32
Worked example
37 Β°F = 2.77778 Β°C
Β°C = (Β°F β 32) Γ 5/9
Temperature is affine, not a factor: Β°F = Β°C Γ 9/5 + 32 and K = Β°C + 273.15. A value can never fall below absolute zero.
Quick conversion table
| Fahrenheit (Β°F) | Celsius (Β°C) |
|---|---|
| -40 | -40 |
| -20 | -28.88889 |
| 0 | -17.77778 |
| 10 | -12.22222 |
| 25 | -3.88889 |
| 37 | 2.77778 |
| 50 | 10 |
| 100 | 37.77778 |
| 150 | 65.55556 |
| 200 | 93.33333 |
Reverse conversion table
| Celsius (Β°C) | Fahrenheit (Β°F) |
|---|---|
| -40 | -40 |
| -20 | -4 |
| 0 | 32 |
| 10 | 50 |
| 25 | 77 |
| 37 | 98.6 |
| 50 | 122 |
| 100 | 212 |
| 150 | 302 |
| 200 | 392 |
About the two units
Β°FFahrenheit
The Fahrenheit scale: water freezes at 32 and boils at 212.
Non-SI Unit Temperature
Β°CCelsius
The degree Celsius is accepted for use with the SI. Temperature intervals of one degree Celsius are equal in magnitude to one kelvin.
Accepted for Use with SI Temperature
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