Unit Converter

Fahrenheit to Celsius Converter

Convert Fahrenheit (°F) to Celsius (°C) instantly. Free, accurate, and browser-based — no signup, no ads in your way.

Instant resultExact formula shownConversion table included
Result-40 °F = -40 °C

How to convert Fahrenheit to Celsius

°C = (°F − 32) × 5/9. Subtract 32 from the Fahrenheit temperature, then multiply by 5 and divide by 9.

Example: 37 °F = 2.7778 °C.

Fahrenheit to Celsius conversion table

Fahrenheit (°F)Celsius (°C)
-40-40
-30-34.4444
-20-28.8889
-10-23.3333
0-17.7778
5-15
10-12.2222
15-9.4444
20-6.6667
25-3.8889
30-1.1111
351.6667
372.7778
404.4444
5010
6015.5556
8026.6667
10037.7778
18082.2222
20093.3333

Convert the other way

Need °C to °F instead? Use the dedicated Celsius to Fahrenheit converter.

FAQ

How do I convert Fahrenheit to Celsius?

°C = (°F − 32) × 5/9. Subtract 32 from the Fahrenheit temperature, then multiply by 5 and divide by 9.

What is 25 °F in °C?

25 Fahrenheit equals -3.8889 Celsius. Type any value into the converter above for an instant exact result.

Is this °F to °C converter free?

Yes. Every Utiliora tool is free, open source, works in your browser, and never asks you to sign up.

Can I convert the other way, from °C to °F?

Yes — use the Celsius to Fahrenheit converter at /converters/celsius-to-fahrenheit, or press the swap button in the converter above.

More unit converters