What is the formula to calculate Fahrenheit and centigrade?

Question

What is the formula to calculate Fahrenheit and centigrade?

Answer 1

A calculator helps here.

To convert Fahrenheit to Celsius, subtract 32 degrees and divide by 1.8. To convert Celsius to Fahrenheit, multiply by 1.8 and add 32 degrees.

Answer 2

Formula for temperature in degrees Fahrenheit:

T°F = (T°C x 1.8) + 32

Formula for temperature in degrees Celsius:

T°C = (T°F - 32) x (5 / 9)

And if you ever need them, here are the formulas for degrees Kelvin and degrees Rankine, which are the two forms of absolute temperature:

Formula for temperature in degrees Rankine:

T°R = T°F + 459.67

Formula for temperature in degrees Kelvin:

T°K = T°C + 273.15

Answer 3

I'm assuming you mean to convert between the two scales.

Letting C be a centigrade (that is, Celsius scale) temperature and F be a Fahrenheit one, the two formulas are:

C = (F - 32) * (5/9) and

F = (C * 9/5) + 32

With a bit of practice, most people can do these conversions in their heads.