The Celsius (or centigrade) scale runs from freezing (0°) to boiling (100°)
The Fahrenheit scale runs from freezing (32°) to boiling (212°)
Therefore, C = 5x(F - 32)/9 or F = 9C/5 + 32
| Centigrade (0-100°C) | Fahrenheit (32-212°F) |
|---|---|
| 100 spread | 180 spread |
| 17.2 | 1 |
| -15.0 | 5 |
| -12.2 | 10 |
| -9.4 | 15 |
| -6.7 | 20 |
| -3.9 | 25 |
| -1.1 | 30 |
| 0.0 | 32 |
| 1.7 | 35 |
| 4.4 | 40 |
| 7.2 | 45 |
| 10.0 | 50.0 |
| 12.8 | 55 |
| 15.6 | 60 |
| 18.3 | 65 |
| 20.0 | 68.0 |
| 21.1 | 70 |
| 23.9 | 75 |
| 26.7 | 80 |
| 29.4 | 85 |
| 30.0 | 86.0 |
| 32.2 | 90 |
| 35.0 | 95 |
| 37.8 | 100 |
| 40.0 | 104.0 |
| 40.6 | 105 |
| 43.3 | 110 |
| 46.1 | 115 |
| 48.9 | 120 |
| 50.0 | 122.0 |
| 51.7 | 125 |
| 54.4 | 130 |
| 57.2 | 135 |
| 60.0 | 140.0 |
| 62.8 | 145 |
| 65.6 | 150 |
| 68.3 | 155 |
| 70.0 | 158.0 |
| 71.1 | 160 |
| 73.9 | 165 |
| 76.7 | 170 |
| 79.4 | 175 |
| 80.0 | 176.0 |
| 82.2 | 180 |
| 100 | 212 |
The Kelvin scale runs from 0°K at absolute zero
and rises in the same increments as Celsius.
Absolute zero is -273.15°C so a Celsius temperature
can be converted to Kelvin by adding 273.15