Fahrenheit to Celsius converter (°F to °C)
°F to °C converter
Enter a value on either side to convert.
To convert Fahrenheit to Celsius, subtract 32 and divide by 1.8: C = (F - 32) ÷ 1.8. For example, 98.6 °F is 37 °C, and a 350 °F oven is 176.6667 °C. The converter below works in both directions as you type, and the table covers the Fahrenheit values used most in US weather, cooking, and medicine.
The formula from degrees Fahrenheit to degrees Celsius is C = (F - 32) ÷ 1.8. The two scales use different degree sizes and different zero points, so no single factor can work: the multiplication rescales the degrees and the offset shifts the zero. The converter applies the full formula internally and rounds only what you see to 4 decimal places. For the derivation and more examples, read the temperature conversion formulas guide.
Worked example: 98.6 °F to °C
To convert 98.6 degrees Fahrenheit to degrees Celsius, apply the formula C = (F - 32) ÷ 1.8:
(98.6 - 32) ÷ 1.8 = 37
Rounded to 4 decimal places, 98.6 °F is 37 °C.
°F to °C conversion table
| °F | °C |
|---|---|
| -40 | -40 |
| -20 | -28.8889 |
| 0 | -17.7778 |
| 10 | -12.2222 |
| 20 | -6.6667 |
| 32 | 0 |
| 40 | 4.4444 |
| 50 | 10 |
| 60 | 15.5556 |
| 68 | 20 |
| 80 | 26.6667 |
| 98.6 | 37 |
| 100 | 37.7778 |
| 120 | 48.8889 |
| 140 | 60 |
| 160 | 71.1111 |
| 180 | 82.2222 |
| 200 | 93.3333 |
| 212 | 100 |
| 250 | 121.1111 |
| 300 | 148.8889 |
| 350 | 176.6667 |
| 400 | 204.4444 |
| 450 | 232.2222 |
| 500 | 260 |
Values are rounded to 4 decimal places with trailing zeros trimmed. Need a value that is not listed? Use the converter at the top of the page.
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Frequently asked questions
What is 98.6 °F in Celsius?
98.6 °F is exactly 37 °C, normal human body temperature. The arithmetic is (98.6 - 32) ÷ 1.8 = 37.
What is the formula for Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value, then divide by 1.8, written as C = (F - 32) ÷ 1.8. The 32 undoes the offset between the scales, since 32 °F is 0 °C, and the 1.8 rescales the degree size.
What is 350 °F in Celsius?
350 °F is 176.6667 °C, a standard moderate oven setting in US recipes. Other common settings are 400 °F at 204.4444 °C and 450 °F at 232.2222 °C.
How do I convert Fahrenheit to Celsius in my head?
Subtract 30 and halve the result. For 100 °F that gives 35 °C, close to the exact 37.7778 °C. For cooking temperatures the estimate runs low, so use the converter for anything precise.
What is 212 °F in Celsius?
212 °F is 100 °C, the boiling point of water at sea level. The freezing point, 32 °F, is 0 °C.