What is 0°F in Celsius?
0°F is -17.78°C.
Fahrenheit to Celsius
Type a temperature to convert it from Fahrenheit to Celsius. The two scales do not share a zero, so the conversion shifts as well as scales.
Result
Fahrenheit and Celsius, side by side
Fahrenheit and Celsius measure the same thing on different scales, and they start counting from different places. That is why the conversion is not a simple multiplication: 0°F comes out as -17.78°C, not zero.
Going the other way, 0°C is 32°F. Any converter that treats this as a ratio gets both directions wrong.
| Fahrenheit | Celsius |
|---|---|
| 0 | -17.7778 |
| 10 | -12.2222 |
| 20 | -6.66667 |
| 25 | -3.88889 |
| 30 | -1.11111 |
| 37 | 2.77778 |
| 100 | 37.7778 |
Frequently asked questions
How do I convert celsius back to fahrenheit?
Use the same tool with the scales swapped. 0°C is 32°F.
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