Celsius to Fahrenheit
Type a temperature in Celsius to get Fahrenheit, or in Fahrenheit to get Celsius.
Also
| °C | °F | |
|---|---|---|
| -40 °C | -40 °F | the two scales meet |
| -20 °C | -4 °F | |
| -10 °C | 14 °F | |
| 0 °C | 32 °F | water freezes |
| 10 °C | 50 °F | |
| 15 °C | 59 °F | |
| 20 °C | 68 °F | room temperature |
| 25 °C | 77 °F | |
| 30 °C | 86 °F | |
| 37 °C | 98.6 °F | body temperature |
| 40 °C | 104 °F | |
| 100 °C | 212 °F | water boils |
| 180 °C | 356 °F | oven, moderate |
| 200 °C | 392 °F |
How it works
°F = °C × 9/5 + 32°C = (°F − 32) × 5/9K = °C + 273.15Worked example
- 20 °C × 9/5 = 36
- 36 + 32 = 68
- 20 °C = 68 °F
Frequently asked questions
What is the formula from Celsius to Fahrenheit?
°F = °C × 9/5 + 32. Going the other way, °C = (°F − 32) × 5/9.
Is there a quick way to estimate it?
Double the Celsius and add 30: 20 °C → 70 °F (exactly 68 °F). It is close for everyday weather.
When are Celsius and Fahrenheit the same?
At −40: −40 °C is exactly −40 °F.