| Réaumur | Centi- grade |
Fahren- heit |
|
|---|---|---|---|
| 80 | 100 | 212 | Water boils at sea-level |
| 76 | 95 | 203 | |
| 72 | 90 | 194 | |
| 68 | 85 | 185 | |
| 63.1 | 78.9 | 174 | Alcohol boils |
| 60 | 75 | 167 | |
| 56 | 70 | 158 | |
| 52 | 65 | 149 | White of egg coagulates |
| 48 | 60 | 140 | |
| 44 | 55 | 131 | |
| 42.2 | 52.8 | 127 | |
| 40 | 50 | 122 | |
| 36 | 45 | 113 | Tallow melts |
| 33.8 | 42.2 | 108 | |
| 32 | 40 | 104 | |
| 29.3 | 36.7 | 98 | Blood heat |
| 28 | 35 | 95 | |
| 25.8 | 32.2 | 90 | |
| 24 | 30 | 86 | |
| 21.3 | 26.7 | 80 | |
| 20 | 25 | 77 | |
| 16 | 20 | 68 | Temperate |
| 12.4 | 15.3 | 60 | |
| 10.2 | 12.8 | 55 | |
| 8 | 10 | 50 | |
| 5.8 | 7.2 | 45 | |
| 4 | 5 | 41 | |
| 1.3 | 1.7 | 35 | |
| 0 | 0 | 32 | Water freezes |
| 0.9 | - 1.1 | 30 | |
| 4 | - 9 | 23 | |
| 5.3 | - 6.7 | 20 | |
| 8 | -10 | 14 | |
| 9.8 | -12.2 | 10 | |
| 12 | -15 | 5 | |
| 14.2 | -17.8 | 0 | Zero Fahr. |
| 16 | -20 | - 4 | |
| 20 | -25 | -13 | |
| 24 | -30 | -22 | |
| 28 | -35 | -31 | |
| 32 | -40 | -40 | Mercury freezes |
To change from centigrade to Fahrenheit multiply by 9, divide by 5, and add 32. To change from Réaumur to Fahrenheit, multiply by 9, divide by 4, and add 32.