- Celsius scale is based on water freezing at 0C and boiling at 100C. That's 32F and 212F, respectively.
- 45C is about halfway between 0C and 100C, so it's about halfway between 32F and 212F.
- Normal body temp 98.7F or 36C.
- Also -40C == -40F. I looked this up once because I was out on a day that where the wind chill was -40F. I thought that I did something wrong when the conversion came out exactly the same. ;-)
Gets you to within a couple of degrees for commonly experienced temperatures, plenty close enough for most purposes. 45C ~= 120F. The true value is 113F.
- Celsius scale is based on water freezing at 0C and boiling at 100C. That's 32F and 212F, respectively.
- 45C is about halfway between 0C and 100C, so it's about halfway between 32F and 212F.
- Normal body temp 98.7F or 36C.
- Also -40C == -40F. I looked this up once because I was out on a day that where the wind chill was -40F. I thought that I did something wrong when the conversion came out exactly the same. ;-)