Fahrenheit to Celsius Converter
Instant °F to °C conversion. Enter a number and get the answer right away.
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How to Convert °F to °C
1 °F equals -17.2222 °C. To convert °F to °C, subtract 32 from the °F value, then multiply by 0.555556 (°C = (°F - 32) × 5/9). For example, 10 °F is -12.2222 °C. The calculator above applies the same conversion in both directions, so you can also type a value in °C to get °F.
°C = (°F - 32) × 5/9
One °F equals -17.2222 °C. Use the formula below for any number.
°F to °C Conversion Table
| °F | °C |
|---|---|
| -40 °F | -40 °C |
| -10 °F | -23.3333 °C |
| 0 °F | -17.7778 °C |
| 10 °F | -12.2222 °C |
| 20 °F | -6.6667 °C |
| 25 °F | -3.8889 °C |
| 30 °F | -1.1111 °C |
| 37 °F | 2.7778 °C |
| 40 °F | 4.4444 °C |
| 50 °F | 10 °C |
| 75 °F | 23.8889 °C |
| 100 °F | 37.7778 °C |
| 150 °F | 65.5556 °C |
| 200 °F | 93.3333 °C |
| 212 °F | 100 °C |
Common °F to °C Conversions
When You Need This Conversion
Useful for weather forecasts, oven and baking temperatures, and reading a fever thermometer abroad.
Units and Conventions
Temperature scales are offset, not just scaled: C = (F - 32) x 5/9. The two scales meet at -40. Kelvin uses the same step as Celsius but starts at absolute zero.
Fahrenheit to celsius: real-world reference points
Four temperatures cover almost every everyday question about this scale.
- Body temperature 98.6 °F 37 °C
- Freezing water 32 °F 0 °C
- Boiling water 212 °F 100 °C
- -40 °F -40 °C
Note: -40 is the only reading where both scales show the same number. It is the fastest sanity check for any converter or formula you are using.
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Frequently Asked Questions
How many °C are in 1 °F?
1 °F equals -17.2222 °C. The formula is °C = (°F - 32) × 5/9.
What is the °F to °C formula?
Use °C = (°F - 32) × 5/9. The calculator above applies it instantly and also works in reverse.
How precise is the °F to °C result?
Results show 4 decimal places. The calculation uses °C = (°F - 32) × 5/9, so 1 °F = -17.2222 °C before rounding.
Where is the °F to °C conversion table?
The table above lists common °F values with their °C equivalents, computed from °C = (°F - 32) × 5/9.
Which definition of °F and °C does this page use?
See the Units and Conventions section above - it gives the exact definition used here and the alternatives common in other countries.
When is °F to °C needed?
Useful for weather forecasts, oven and baking temperatures, and reading a fever thermometer abroad. Enter any °F value above to see its °C equivalent.
