Converter

Convert degrees Fahrenheit to degrees Celsius

degrees Fahrenheit (°F)

degrees Celsius (°C)

-17.2222

Formula: °C = (°F − 32) × 5 / 9

°F to °C quick reference table

degrees Fahrenheit (°F)	degrees Celsius (°C)
1	-17.2222
2	-16.6667
5	-15
10	-12.2222
20	-6.6667
25	-3.8889
50	10
100	37.7778
250	121.111
500	260
1,000	537.778

Everyday °F values, converted

32 °F = 0 °C — water freezing.
68 °F = 20 °C — room temperature.
98.6 °F = 37 °C — normal body temperature.
212 °F = 100 °C — water boiling at sea level.

Where °F to °C comes up

Temperature conversions matter for weather, cooking and fever readings. Recipes are the strictest case: an oven set 20 degrees out in the wrong scale is the difference between baked and burnt.

Doing °F to °C in your head

Subtract 30 and halve it. For everyday temperatures that is within roughly 1–2 °C of the exact answer.

Precision and rounding

The formula °C = (°F − 32) × 5 / 9 is exact — temperature scales are defined against each other, so there is no measurement uncertainty in the conversion itself. Round to whole degrees for weather and to one decimal place for cooking or clinical readings.

Frequently Asked Questions & How-To

1 degree Fahrenheit equals -17.2222 degrees Celsius. 10 degrees Fahrenheit is -12.2222 degrees Celsius, and 100 degrees Fahrenheit is 37.7778 degrees Celsius.

The conversion uses °C = (°F − 32) × 5 / 9. Type any amount above and the result updates as you type — no button press and no page reload.

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