How to use the converter
- Type the value. Commas and decimal points both work.
- Choose the unit you have under From and the unit you want under To. The quick buttons set common pairs in one tap.
- Read the result. The table below shows the same value in every unit, and Copy puts the result on your clipboard.
The formulas
°F = °C × 9/5 + 32
°C = (°F − 32) × 5/9
K = °C + 273.15
Quick estimate from Fahrenheit: subtract 30 and halve. 80 °F → 50 → 25 °C (exact: 26.7 °C). At −40 both scales show the same number.
Conversion charts
| Celsius | Fahrenheit |
|---|---|
| −40 °C | −40 °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 |
| 37 °C | 98.6 °F |
| 40 °C | 104 °F |
| 100 °C | 212 °F |
| 160 °C | 320 °F |
| 180 °C | 356 °F |
| 200 °C | 392 °F |
| 220 °C | 428 °F |
| 250 °C | 482 °F |
| Fahrenheit | Celsius |
|---|---|
| 0 °F | −17.8 °C |
| 32 °F | 0 °C |
| 50 °F | 10 °C |
| 68 °F | 20 °C |
| 72 °F | 22.2 °C |
| 75 °F | 23.9 °C |
| 80 °F | 26.7 °C |
| 90 °F | 32.2 °C |
| 98.6 °F | 37 °C |
| 100 °F | 37.8 °C |
| 212 °F | 100 °C |
| 325 °F | 162.8 °C |
| 350 °F | 176.7 °C |
| 375 °F | 190.6 °C |
| 400 °F | 204.4 °C |
| 425 °F | 218.3 °C |
| 450 °F | 232.2 °C |
Good to know
Body temperature: 37 °C is 98.6 °F; a fever starts at about 38 °C (100.4 °F). Oven: 350 °F is about 177 °C, 400 °F about 204 °C. Fan ovens usually need about 20 °C (35 °F) less than conventional settings. Kelvin has no degree sign and starts at absolute zero, −273.15 °C.
Frequently asked questions
What is 20 °C in Fahrenheit?
68 °F. Multiply by 9/5 (36) and add 32.
At what temperature are Celsius and Fahrenheit equal?
At −40. −40 °C is exactly −40 °F.
Is 100 °F a fever?
100 °F is 37.8 °C, a slightly raised temperature. A fever is commonly defined from 100.4 °F (38 °C).