Centigrade vs Fahrenheit cheat sheet
Celsius = 5/9 (F - 32)
Fahrenheit = (9/5 C) + 32
- fast, overstating approximation: double C and add 32
- the doubling is off by 10%
- double C, subtract 10% of that result from the result, add 32
- fast, overstating approximation: double C and add 32
| C | F |
|---|---|
| 0 | 32 |
| 5 | 41 |
| 10 | 50 |
| 15 | 59 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 35 | 95 |
| 40 | 104 |