Celsius to Fahrenheit Converter (Celsius to Fahrenheit)
Enter a temperature in degrees Celsius to see it in degrees Fahrenheit instantly, or type in the °F box to convert the other way. 20 °C = 68 °F. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F).
A quick mental estimate: double the Celsius figure and add 30. 20 °C is about 70 °F (exact: 68 °F). Weather, oven settings and body temperature are the usual reasons to convert.
20 degrees Celsius = 68 degrees Fahrenheit. Formula: °F = °C × 9/5 + 32
20 degrees Celsius in all temperature units
| Degrees Fahrenheit (°F) | 68 |
| Kelvins (K) | 293.15 |
How to convert degrees Celsius to degrees Fahrenheit
°F = °C × 9/5 + 32
Temperature scales have different zero points, so the conversion has an offset as well as a ratio. To go the other way: °C = (°F − 32) × 5/9.
Example: 20 °C converts to 68 °F.
Celsius to Fahrenheit conversion table
| Degrees Celsius | Degrees Fahrenheit |
|---|---|
| -40 °C | -40 °F |
| -30 °C | -22 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 32 °C | 89.6 °F |
| 35 °C | 95 °F |
| 37 °C | 98.6 °F |
| 40 °C | 104 °F |
| 45 °C | 113 °F |
| 50 °C | 122 °F |
| 60 °C | 140 °F |
| 70 °C | 158 °F |
| 80 °C | 176 °F |
| 90 °C | 194 °F |
| 98.6 °C | 209.48 °F |
| 100 °C | 212 °F |
| 150 °C | 302 °F |
| 180 °C | 356 °F |
| 200 °C | 392 °F |
| 212 °C | 413.6 °F |
| 250 °C | 482 °F |
| 300 °C | 572 °F |
| 350 °C | 662 °F |
| 400 °C | 752 °F |
| Degrees Fahrenheit | Degrees Celsius |
|---|---|
| -40 °F | -40 °C |
| -30 °F | -34.444444 °C |
| -20 °F | -28.888889 °C |
| -10 °F | -23.333333 °C |
| 0 °F | -17.777778 °C |
| 5 °F | -15 °C |
| 10 °F | -12.222222 °C |
| 15 °F | -9.4444444 °C |
| 20 °F | -6.6666667 °C |
| 25 °F | -3.8888889 °C |
| 30 °F | -1.1111111 °C |
| 32 °F | 0 °C |
| 35 °F | 1.6666667 °C |
| 37 °F | 2.7777778 °C |
| 40 °F | 4.4444444 °C |
| 45 °F | 7.2222222 °C |
| 50 °F | 10 °C |
| 60 °F | 15.555556 °C |
| 70 °F | 21.111111 °C |
| 80 °F | 26.666667 °C |
| 90 °F | 32.222222 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.777778 °C |
| 150 °F | 65.555556 °C |
| 180 °F | 82.222222 °C |
| 200 °F | 93.333333 °C |
| 212 °F | 100 °C |
| 250 °F | 121.11111 °C |
| 300 °F | 148.88889 °C |
| 350 °F | 176.66667 °C |
| 400 °F | 204.44444 °C |
About the celsius and the fahrenheit
Celsius sets 0 at the freezing point of water and 100 at its boiling point at sea level. It is used for weather, cooking and body temperature almost everywhere except the US.
Fahrenheit sets 32 at the freezing point of water and 212 at its boiling point, so one Fahrenheit degree is 5/9 of a Celsius degree. It is the everyday temperature scale in the United States.
Frequently asked questions
What is the formula to convert degrees Celsius to degrees Fahrenheit?
°F = °C × 9/5 + 32. For example, 20 °C = 68 °F. The reverse is °C = (°F − 32) × 5/9.
At what temperature are Celsius and Fahrenheit the same?
At −40 degrees. −40 °C and −40 °F are the same temperature, which is the only point where the two scales cross.
What is normal body temperature in degrees Fahrenheit?
About 98.6 °F, which is 37 °C or 98.6 °F. A reading of 100.4 °F (38 °C) or above is generally considered a fever.
Is the Celsius to Fahrenheit conversion exact?
Yes. The Celsius and Fahrenheit scales are defined so that water freezes at 0 °C = 32 °F and boils at 100 °C = 212 °F at standard pressure, which fixes the ratio at exactly 9/5 and the offset at exactly 32. Kelvin is Celsius plus exactly 273.15.
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Last updated . Formulas are shown on the page and checked against the worked example.
Conversion factors are exact international definitions where one exists and standard reference values elsewhere. Results are rounded to 8 significant digits.