Convert degrees Fahrenheit to degrees Celsius
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20 °F = -6.66667 °C
°C = (°F − 32) × 5/9
In all units
- degrees Celsius
- -6.66667 °C
- degrees Fahrenheit
- 20 °F
- kelvins
- 266.483 K
degrees Fahrenheit to degrees Celsius
| °F | °C |
|---|---|
| -40 | -40 |
| 0 | -17.7778 |
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 86 | 30 |
| 98.6 | 37 |
| 100 | 37.7778 |
| 212 | 100 |
| 350 | 176.667 |
| 400 | 204.444 |
Frequently asked questions
How accurate are the results?
Calculations use the defined conversion factors, e.g. 1 inch = 2.54 cm and 1 pound (lb) = 0.45359237 kg. Six significant digits are shown.
How much is a pound?
The English pound (lb) weighs 453.59 grams. In everyday use in Switzerland and Germany, “ein Pfund” (a pound) often means 500 grams; both are available.
Why does my computer show fewer GB than on the box?
Manufacturers calculate 1 GB = 1000 MB, Windows uses 1024 (actually GiB). Windows therefore shows a 1 TB hard drive as about 931 “GB”.