Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius instantly, and back again. Uses the exact C = (F - 32) x 5/9 formula.
Independently verified for accuracy
Calculator by Toolsloft ↗- Result
- -17.222222 Celsius (°C)
- Conversion
- 1 Fahrenheit (°F) = -17.222222 Celsius (°C)
Convert Fahrenheit to Celsius, and Celsius back to Fahrenheit with the swap button. Handy for reading a US weather forecast, an oven set in Fahrenheit, or a fever measured on an American thermometer. Enter the temperature and the answer updates instantly.
How this is calculated
Celsius is found by subtracting 32 from the Fahrenheit value and multiplying by 5/9, so 212 F becomes 100 C. The reverse multiplies Celsius by 9/5 and adds 32. Both scales read the same at minus 40 degrees.
How to use
- Enter the temperature in Fahrenheit.
- Keep the direction on Fahrenheit to Celsius, or press Swap units to reverse it.
- Read the result in Celsius.
Examples
- Boiling water:
212 F = 100 C - Freezing point:
32 F = 0 C - Body temperature:
98.6 F = 37 C
FAQ
- What is the formula to convert Fahrenheit to Celsius?
- Subtract 32 from the Fahrenheit value, then multiply by 5/9. For example, 68 F minus 32 is 36, times 5/9 is 20 C.
- What is a 100 F fever in Celsius?
- A temperature of 100 F is about 37.8 C, which is a mild fever.