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Fahrenheit to Celsius

Convert Fahrenheit to Celsius, with the math shown step by step.

Degrees Celsius
-18.89 °C

-2 °F = -18.89 °C

Also equals

How it works

°C = (°F − 32) ÷ 1.8

Water freezes at 32 °F, which is 0 °C, so first take away 32. Then divide by 1.8, because a Celsius degree is 1.8 times as big as a Fahrenheit degree. A quick check: an oven at 350 °F is about 177 °C.

  1. Subtract 32 -2 − 32 = -34
  2. Divide by 1.8 (that is 9/5) -34 ÷ 1.8 = -18.89 °C

Nearby values

Degrees Fahrenheit Degrees Celsius Kelvins
-5 °F -20.56 °C 252.59
-4 °F -20 °C 253.15
-3 °F -19.44 °C 253.71
-2 °F -18.89 °C 254.26
-1 °F -18.33 °C 254.82
0 °F -17.78 °C 255.37
1 °F -17.22 °C 255.93