Conversion between the two systems isn’t hard, but it does require some thought, and you won’t always be able to do it in your head. When converting Celsius to Fahrenheit, the formula is: (°C ...

To convert from Fahrenheit to Celsius, simply subtract 32 and multiply by 0.5556 (or 5/9). Example: (75F - 32) x 0.5556 = 23.6C ...

In order to convert degrees Fahrenheit into Celsius, first, take the °F temperature and subtract 32. Multiply the number you are left with by five, then divide the number by nine.

Celsius has 100 tick marks between freezing and boiling, while Fahrenheit has 180, and the ratio of 100 to 180 is 5/9, so five degrees Celsius equals 9 degrees Fahrenheit.

The standard conversion formula which states; °F = (°C × 9/5) + 32, is mathematically correct but practically useless during timed exams. Multiplying by 9/5 means converting to decimals (1.8 ...