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Convert Fahrenheit to Centigrade and Back In Your Head
As a shortcut, F=degrees Fahrenheit and C=degrees Centigrade (or Celsius).
The basic conversion is exact:
Degrees F = (Degrees C * 9/5) + 32 and
Degrees C = (Degrees F - 32) * 5/9
| F to C 1. Subtract 32 from F 2. Halve the result 3. Add back 10% of the result 4. Done, you have C. Example: Start: F = 57 Minus 32: F-32 = 25 Halve it: 25/2 = 12.5 Add back 1/10: 12.5 + 1.3 = 13.8 or 14C | C to F 1. Double C 2. Subtract 1/10 of the result 3. Add 32 4. Done, you have F. Example Start: C=32 Double it: C*2 = 64 Subtract 1/10: 64-6 = 58 Add 32: 58+32 = 90F |
ftoctof.1640199078.txt.gz · Last modified: 2021.12.22 13:51 by 127.0.0.1