Convert Fahrenheit to Celsius

Enter a temperature in Fahrenheit to see it in Celsius. Conversion runs in your browser.

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Fahrenheit (°F)

Celsius (°C)

Guide & FAQFahrenheit to Celsius formula · Conversion table · About Fahrenheit · About Celsius · Frequently asked questions

Fahrenheit to Celsius formula

°C = ((°F+459.67)*5/9)-273.15

Temperature scales differ in both their zero point and their degree size, so a conversion needs a multiplication and an offset — unlike length or weight, where a single factor is enough.

Conversion table

Fahrenheit (°F)	Celsius (°C)
-40°F	-40°C
-20°F	-28.888889°C
0°F	-17.777778°C
10°F	-12.222222°C
20°F	-6.666667°C
25°F	-3.888889°C
30°F	-1.111111°C
37°F	2.777778°C
50°F	10°C
75°F	23.888889°C
100°F	37.777778°C
200°F	93.333333°C

About Fahrenheit

The Fahrenheit scale puts water’s freezing point at 32° and its boiling point at 212°, and is used mainly in the United States.

About Celsius

The Celsius scale puts the freezing point of water at 0° and its boiling point at 100° at standard pressure.

Frequently asked questions

What is 0°F in Celsius?

0°F equals -17.777778°C.

What is normal body temperature?

37°C — about 37°C.

At what temperature do the two scales meet?

Only Celsius and Fahrenheit cross, at −40°. Kelvin and Rankine both start at absolute zero and never go negative.

Common Fahrenheit to Celsius values

Worked answers for the temperatures people look up most.