Fahrenheit to Celsius Converter
This Fahrenheit to Celsius Converter lets you convert Fahrenheit (F) into Celsius (C) in one step. Enter a value in fahrenheit and you'll instantly see the equivalent in celsius, worked out with the formula celsius = (fahrenheit - 32) x 5/9. It's handy whenever you need a quick, precise fahrenheit-to-celsius conversion without doing the arithmetic by hand.
- Conversion constants are fixed and do not vary by region.
Formula
celsius = (fahrenheit - 32) x 5/9
- This conversion uses the formula celsius = (fahrenheit - 32) x 5/9, which includes an offset — it is not a single multiply-by factor.
- Apply the whole formula (scaling and the constant term) to each value you convert.
- Displayed results are rounded for readability, but the full-precision value is used in the calculation.
Example
Inputs
- Fahrenheit (F): 77
Apply celsius = (fahrenheit - 32) x 5/9: 77 F converts to 25 C.
Frequently asked questions
How do I convert fahrenheit to celsius?
Apply the formula celsius = (fahrenheit - 32) x 5/9. For example, 77 F equals 25 C.
Is this conversion accurate?
Yes. The calculator uses the exact, internationally accepted relationship between the two units.
Why can tiny differences appear after conversion?
Very small differences are only a display effect from rounding the output. The underlying calculation keeps full precision.