Converting F to Celcius?
03-23-2007, 01:39 PM
#4
Racer
Join Date: Jan 2007
Age: 55
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FWIW - I am a pilot and C to F conversions are abundant.
A quick and dirty method for converting.
if 10C then take 10 x 2 = 20 then add 32 to get 52F
This is not entirely correct because of the 5/9 as someone mentioned, but it will get you within a couple degrees F
Conversely you can say....
if 72F then subtract 32 to get 40 and then divide 40 by 2 to get 20C
If you want to get real precise and can do it in your head easily (I can't) then use 1.8 instead of 2 to either divide or multiply, using the first example....
if 10C then take 10 x 1.8 = 18 then add 32 to get 50F
A quick and dirty method for converting.
if 10C then take 10 x 2 = 20 then add 32 to get 52F
This is not entirely correct because of the 5/9 as someone mentioned, but it will get you within a couple degrees F
Conversely you can say....
if 72F then subtract 32 to get 40 and then divide 40 by 2 to get 20C
If you want to get real precise and can do it in your head easily (I can't) then use 1.8 instead of 2 to either divide or multiply, using the first example....
if 10C then take 10 x 1.8 = 18 then add 32 to get 50F
03-24-2007, 01:14 AM
#6
Instructor
Originally Posted by onsknth
This is not entirely correct because of the 5/9 as someone mentioned, but it will get you within a couple degrees F
if 10C then take 10 x 1.8 = 18 then add 32 to get 50F
if 10C then take 10 x 1.8 = 18 then add 32 to get 50F
"Revised" equation:
10C then take 10 x 1.8 = 18 then add 32 to get 50F
10ºC * 1.8 = 18
18 + 32 = 50ºF
Previously Stated Equation:
5/9 (F - 32) = C
5/9*(50ºF - 32) = 10ºC
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