Fahrenheit to Celsius Converter
Enter a temperature in degrees Fahrenheit to convert it to degrees Celsius.
Educational information, not professional advice.
Examples
- 32°F ⇒ 0°C
- 68°F ⇒ 20°C
FAQ
How does the formula work?
Subtract 32 from the Fahrenheit value and multiply by 5/9 to get Celsius.
Can I convert below-freezing temperatures?
Yes, negative results are valid Celsius values.
Are decimal inputs allowed?
Yes, the calculator supports decimal Fahrenheit values.
How do I convert Celsius back to Fahrenheit?
Use the Celsius to Fahrenheit calculator or apply F = C × 9/5 + 32.
Additional Information
- Conversion formula: °C = (°F − 32) × 5/9.
- Water freezes at 32°F (0°C) and boils at 212°F (100°C) at sea level.
- To reverse the process use °F = (°C × 9/5) + 32.
- Read the [degree Celsius guide](/units-and-measures/degree-celsius-definition-history-and-applications/) to understand why this offset works.