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Temperature

Fahrenheit to celsius Converter

Convert degree Fahrenheit to degree Celsius instantly.

Formula°C = (°F − 32) × 5/9
Sources and methodology1 °F = -17.2222222222 °C — exactly. exactly

Quick conversion table

degree Fahrenheitdegree Celsius
-40 °F-40 °C
0 °F-17.7777777778 °C
10 °F-12.2222222222 °C
20 °F-6.66666666667 °C
25 °F-3.88888888889 °C
37 °F2.77777777778 °C
50 °F10 °C
100 °F37.7777777778 °C

Unit definitions

degree Fahrenheit (°F)

degree Fahrenheit is a unit of Temperature. In this converter it is defined against the category base unit as base = value × 0.555555555556 + 255.372222222.

degree Celsius (°C)

degree Celsius is a unit of Temperature. In this converter it is defined against the category base unit as base = value × 1 + 273.15.

Example

25 °F = -3.88888888889 °C

Sources and methodology

Definitions: BIPM SI Brochure and NIST conversion guidance. Methodology.