Fahrenheit – Celsius Conversion

ashlee on Thu, 21st May 2009 6:48 am 

a thing i learned is that every 3° celcius gos up by every 5° ferinhiet goes up

Chris Pellbring on Thu, 11th Feb 2010 12:53 pm 

Your formula for Celsius to Fahrenheit conversion is wrong.
Should read: Celsius to Fahrenheit conversion: multiply CELSIUS by 9/5 and add 32 degrees

eurojoe on Fri, 12th Feb 2010 9:13 pm 

Thanks Chris for pointing out the error. I corrected the formula.

Josh on Thu, 1st Apr 2010 12:14 am 

Sweet!

Dan on Mon, 12th Apr 2010 8:10 pm 

I quick math i use in my head from C to F is double it and add 30.

example: 10c x 2 + 30 = 50F. it’s close or exact at times.

Joey on Tue, 24th May 2011 3:16 am 

I think thats a cool way of doing it “Dan”, your formula isn’t always exact as you say but its very well close enough.
And “Ashley” you say that for every 3 degrees celsius, farenhiet goes up 5 degrees and your almost right but at every 10 intervals Celsius goes up by only 2.

Thanks Guys, learned a lot today
Joey

Easier! on Thu, 7th Jul 2011 12:35 pm 

The easiest way for me to get an exact conversion in my head is this:

1. Multiply Celsius by two -> 6 * 2 = 12
2. Subtract 10% of that new number from its self -> 12 – 1.2 = 10.8
3. Add 32 -> 32 + 10.8 = 42.8

Easy peezy!

Getting exact numbers from Fahrenheit to Celsius is not as easy.

Neumann G on Mon, 6th Feb 2012 8:20 am 

Why no minus degrees?

Neumann G on Mon, 6th Feb 2012 8:24 am 

Why no minus degree formula?

rachel on Sun, 19th Feb 2012 5:12 pm 

dont know what that means multiply 9/5 ???
please give more help.

example 3′C = ? F

thx

victoria on Mon, 26th Mar 2012 10:45 pm 

your missing the conversion for 15. i needed it for 15, bu thanks for the formula