Body temperature, 37 °C, is 98.6 °F, and a 20 °C room is 68 °F. At −40 the two scales meet.
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -40 | -40.0 |
| -35 | -31.0 |
| -30 | -22.0 |
| -25 | -13.0 |
| -20 | -4.0 |
| -15 | 5.0 |
| -10 | 14.0 |
| -5 | 23.0 |
| 0 | 32.0 |
| 5 | 41.0 |
| 10 | 50.0 |
| 15 | 59.0 |
| 20 | 68.0 |
| 25 | 77.0 |
| 30 | 86.0 |
| 35 | 95.0 |
| 40 | 104.0 |
| 45 | 113.0 |
| 50 | 122.0 |
| 55 | 131.0 |
| 60 | 140.0 |
| 65 | 149.0 |
| 70 | 158.0 |
| 75 | 167.0 |
| 80 | 176.0 |
| 85 | 185.0 |
| 90 | 194.0 |
| 95 | 203.0 |
| 100 | 212.0 |
How it is computed
°F = °C × 9/5 + 32. The scales differ in both zero point (water freezes at 0 °C and 32 °F) and degree size (100 Celsius degrees span the same range as 180 Fahrenheit degrees).
FAQ
Is there a quick mental shortcut?+
Double the Celsius figure and add 30. It is close for weather temperatures and drifts further off as the numbers grow.
How do I convert Fahrenheit to Celsius?+
Subtract 32, then multiply by 5/9. The Fahrenheit to Celsius calculator does it for any value.