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Celsius to Fahrenheit
Water freezes at 0°C and 32°F, and boils at 100°C and 212°F. Multiply Celsius by 9/5 and add 32 to get Fahrenheit.
0°C = 32°F · 100°C = 212°F
How to use it
- Type the Celsius temperature.
- Read Fahrenheit from F = C × 9/5 + 32.
- Use the table for weather, cooking, and body temperature.
- Switch to the Fahrenheit converter if you are going the other way.
Formula
°F = °C × 9/5 + 32
The size of one degree Fahrenheit is 5/9 of a degree Celsius. The offset of 32 is the freezing point of water.
A 180°C oven
180 × 9/5 + 32 = 356°F. Home ovens that say 350°F are a little cooler than a European 180°C setting. 190°C is 374°F.
A room at 20°C is 68°F. Body temperature of 37°C is 98.6°F. A summer day at 30°C is 86°F, and 40°C is 104°F. The two scales meet at −40, so −40°C is −40°F. Weather apps round to a whole degree. This converter keeps the tenths so a lab value and a thermostat can be checked properly.
Common temperatures
| Celsius | Fahrenheit |
|---|---|
| -40 | -40 |
| 0 | 32 |
| 10 | 50 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 37 | 98.6 |
| 100 | 212 |
| 180 | 356 |
Questions
How do I convert Celsius to Fahrenheit?
Multiply by 9, divide by 5, and add 32. For 20°C: 20 × 9/5 = 36, and 36 + 32 = 68°F.
What is 37 Celsius in Fahrenheit?
37°C is 98.6°F, the figure often quoted as normal body temperature.
At what temperature are Celsius and Fahrenheit equal?
They are equal at −40. Minus forty is the same temperature on both scales.
Does this converter send my number to a server?
No. The arithmetic runs in your browser.