3 ms·
Because 12C ~ 21F there are some convenient temperatures to interpolate between. of course 0C = 32F and -40C = -40F but also (within a degree F): 04C = 40F
by kurthr 5y ago
Because 12C ~ 21F there are some convenient temperatures to interpolate between.
of course 0C = 32F and -40C = -40F
but also (within a degree F):
04C = 40F
16C = 61F
28C = 82F
40C = 104F
note that the last two digits are always reversed.
below 0C they get less useful
-08C = 18F
-19C =-1.9F
-31C = -23F
- js2 5y agoInteresting strategy. I long ago memorized 20C = 68F and then adjust in increments of 5/9, which works well enough for the range of temperatures I consider habitable. I've gotten so good at this I once translated on the fly between some fellow American and European runners during a marathon. :-)
- rags2riches 5y ago"When it's springtime in Alaska, it's forty below". That's all I have managed to memorize about temperature conversion so far in my life.