🔄 Unit Conversion
Fahrenheit to Celsius Converter
To go from Fahrenheit to Celsius, subtract 32 and multiply by five ninths. To go the other way, multiply by nine fifths and add 32. The two scales cross at minus 40 degrees.
How it works
Temperature
Direction
Result
Kelvin
Opposite scale
Frequently asked questions
How do I use the Fahrenheit to Celsius Converter?
Fill in the fields above — the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.