Question: why is 40c the same as 40f?
Answer: Thus we find where Celsius and Fahrenheit are equal. ... Think about the fact that the boiling point of water is 212 degrees F, but 100 degrees C. That's a difference of 112 to represent the same value. And then the freezing point of water is 32 degrees F, which is 0 degrees C--a difference of 32 degrees.