Enter a number
1 °F = -17.22222222 °C
Open in Unit ConverterFormula
°C = (°F − 32) × 5/9
How to convert
To convert degrees Fahrenheit to degrees Celsius, use the formula °C = (°F − 32) × 5/9. For example, 80 °F = 26.66666667 °C.
Conversion table
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.77777778 °C |
| 32 °F | 5.68434E-14 °C |
| 50 °F | 10 °C |
| 60 °F | 15.55555556 °C |
| 68 °F | 20 °C |
| 70 °F | 21.11111111 °C |
| 77 °F | 25 °C |
| 80 °F | 26.66666667 °C |
| 90 °F | 32.22222222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.77777778 °C |
| 212 °F | 100 °C |
| 350 °F | 176.6666667 °C |
| 400 °F | 204.4444444 °C |
About these units
Celsius puts 0° at the freezing point and 100° at the boiling point of water at sea level. Fahrenheit puts them at 32° and 212°, so one Celsius degree equals 1.8 Fahrenheit degrees. Kelvin uses Celsius-sized degrees but starts at absolute zero (−273.15 °C) and is written without a degree sign. Because the scales have different zero points, a temperature conversion adds or subtracts an offset as well as scaling.
FAQ
› How do I convert °F to °C?
1 °F = -17.22222222 °C. To convert, use the formula °C = (°F − 32) × 5/9: 80 °F = 26.66666667 °C.
› What is 1 °C in °F?
1 °C = 33.8 °F. The reverse formula is °F = °C × 9/5 + 32.
› At what temperature are Celsius and Fahrenheit equal?
At −40°: −40 °C is exactly −40 °F.
› What is normal body temperature?
About 37 °C, which is 98.6 °F or 310.15 K. Normal readings vary by about half a degree Celsius.