Fahrenheit to Celsius Converter
Convert Fahrenheit temperatures to Celsius quickly and accurately. This calculator is useful for comparing weather readings, interpreting recipes, checking specifications, and converting measurements between the Fahrenheit and Celsius scales.
Quick Answer
Celsius = (Fahrenheit − 32) × 5/9
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9. For example, 68°F converts to 20°C.
Understanding the Conversion
Fahrenheit and Celsius use different zero points and different sizes for each degree. That is why the conversion requires both subtraction and multiplication.
Using Negative Temperatures
The formula also works for temperatures below 32°F. For example, 14°F gives −10°C. Keep the negative sign through each step of the calculation.
Examples
32°F = 0°C.
50°F = 10°C.
68°F = 20°C.
104°F = 40°C.
Quick Reference
- Exact formula: (°F − 32) × 5/9.
- The result may be rounded for everyday reporting.
- −40°F equals −40°C.