The easy but not quite right conversion from C to F is to double it, then add 30.
F to C is subtract 30 and divide by 2.
I've always learned 32, not 30
When doing a simple double/half, 30 will give less average error between 0° and 100°C. Though the real formula is C * 9 / 5 + 32 = F
The easy but not quite right conversion from C to F is to double it, then add 30.
F to C is subtract 30 and divide by 2.
I've always learned 32, not 30
When doing a simple double/half, 30 will give less average error between 0° and 100°C. Though the real formula is C * 9 / 5 + 32 = F