At what temperature in degrees are Centigrade and Fahrenheit equal?
To convert Fahrenheit to Centigrade you have multiply the temperature in Celsius by 9/5 and then add 32. So, to find the point where both scales are equal we can use two simple equations:
- °C = (°C * 9/5) + 32
- °C - (°C * 9/5) = 32
- -4/5 * °C = 32
- °C = -32 * 5/4
- °C = -40
- °F = (°F * 9/5) + 32
°F - (°F * 9/5) = 32
-4/5 * °F = 32
°F = -32 * 5/4
°F = -40
So, Centigrade and Fahrenheit are equal at -40 degrees.
I learned from Bob & Doug McKenzie that when you get the temp in Celsius, simply double it and add 30. You'll always come within a couple degrees of the correct answer in Fahrenheit. So unless you can feel the difference between 77 and 80 degrees, this works just fine when someone says it's 25 degrees Celsius.
Apr 5, 2016 4:18PM
your wording is wrong you said this "To convert Fahrenheit to Centigrade you have multiply the temperature in Celsius by 9/5 and then add 32." You should have said this ."To convert Fahrenheit to Centigrade. You take the temperature of Fahrenheit minus 32 times 5/9 equals Centigrade. Both forumals you wrote is for converting Centrigrade to Fahrenheit. I hope you are not a math teacher. Because if you are . I would pull my child out of your class.
Sep 24, 2016 1:30AM
KOO ROO KOO KOO KOO KOO KOO KOOOO, KOO ROO KOO KOO KOO KOO KOO KOOOOOO ......EH.
Sep 6, 2016 9:40PM
Taught it in junior school 65 years ago
Mar 1, 2019 7:21PM
Easier calculation. x/100 = x-32/180.
Feb 16, 2019 12:14AM
Huh? Answer is very confusing and I am not easily confused.
Dec 25, 2018 12:56AM
Elaine Tassoni, You are absolutely lovely!
Dec 24, 2018 1:40PM
I learned something though most of the explanation went over my head.
Dec 24, 2018 10:57AM
Tasha the Cavalier, easiest is to refer to twohowlingdogs explanation. Estimation is sometimes just as good.
Dec 24, 2018 4:51AM
Peter Robertson, totally agree. Don't criticise someone else's efforts. Bottom line, ladies and gentlemen, this is a quiz, not a lesson in correction. If you're not careful, you will kill the interest in what started out as a very good site.
Dec 24, 2018 4:48AM
edusido, sorry... Pressed dislike first. I meant to press like. Corrected it
Dec 24, 2018 4:47AM
Robert Feeney, personally I hope you're not a spelling teacher. What is a forumal? IF YOU'RE GOING TO CRITICISE, MAKE SURE YOU'RE CORRECT YOURSELF. Otherwise, BACK OFF.
Dec 24, 2018 4:43AM
Pretty easy considering it had to be minus and only 1 minus option, answer option needs to be thought out.
Dec 24, 2018 3:45AM
You all can figure it out, I got it right and moving on to the next quiz!
Dec 24, 2018 2:37AM
As a graduate chemist I knew that.
Dec 23, 2018 5:19PM
I misunderstood the question
Dec 22, 2018 7:04PM
I like? how many spend their time by explaining (a) How the question is wrong or (b) how the answer is wrong.What does this mean? I like those who expand the answer somewhat but (a) or (b) ?Nope,just move on to the next question
Dec 20, 2018 10:30PM
i got the answer correct because I remember hearing that. Your explanation made no sense to me. I still have no idea how to calculate the difference. I like the answer from twohowlingdogs.
Dec 18, 2018 7:41PM
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