Subtract, then multiply
°C = (°F − 32) × 5/9
Fahrenheit to Celsius
Fahrenheit to Celsius.
Convert Fahrenheit to Celsius instantly. Enter a temperature to see the result, formula, and quick chart. Values below absolute zero are rejected.
°F to °C Absolute-zero check Free to use
Temperature calculator
What’s the temperature?
68 °F is about 20 °C.
The conversion
The Fahrenheit-to-Celsius formula.
Subtract the Fahrenheit offset before scaling the degrees.
Convert 68°F
(68 − 32) × 5/9 = 20°C.
Respect absolute zero
The lowest possible temperature is −459.67°F (−273.15°C).
Quick reference
Fahrenheit to Celsius chart.
Common Fahrenheit temperatures and Celsius equivalents.
| Fahrenheit | Celsius |
|---|---|
| 1 | −17.2222 |
| 5 | −15 |
| 10 | −12.2222 |
| 50 | 10 |
| 100 | 37.7778 |
Keep exploring
Related conversions.
Reverse the conversion or return to the temperature hub.
Fahrenheit to Celsius, explained
Good to know.
Quick answers about this temperature conversion.
How do I convert Fahrenheit to Celsius?
Subtract 32, then multiply by 5/9. For example, 68°F is 20°C.
What is 32°F in Celsius?
32 degrees Fahrenheit is 0 degrees Celsius.
Can I convert negative Fahrenheit temperatures?
Yes. Negative temperatures are supported down to absolute zero, −459.67°F.