-40 °F to Celsius
-40 °F = -40 °C
Formula
°C = (°F − 32) × 5/9 (-40 − 32) × 5/9 = -40 °C
−40 is the one temperature that is the same in Fahrenheit and Celsius.
Nearby values
Frequently asked questions
What is -40 °F in Celsius?
-40 °F is -40 °C.
How do you convert Fahrenheit to Celsius?
Subtract 32, then multiply by 5 and divide by 9.