For a temperature difference ("It's ten degrees colder today than it was yesterday"), 1°C = 9/5°F. So a 10°C difference is equivalent to an 18°F difference.
For absolute temperatures,
Temp_F = 9/5 Temp_C + 32
So 0°C = 32°F, 20°C = (9/5)(20) + 32 = 36 + 32 = 68°F, etc.
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Verified answer
F = (C * 9/5) + 32
C = (F-32)*5/9
For a temperature difference ("It's ten degrees colder today than it was yesterday"), 1°C = 9/5°F. So a 10°C difference is equivalent to an 18°F difference.
For absolute temperatures,
Temp_F = 9/5 Temp_C + 32
So 0°C = 32°F, 20°C = (9/5)(20) + 32 = 36 + 32 = 68°F, etc.
Tf=(9/5*Tc)+32
where
Tf is temperature in fahrenheit
Tc is temperature in celsius
conversion unit of fahrenheit to celcius is: F=(C9/5)+32
Celsuis-fahrenheit: C=5/9(F-32)
perhaps you could try this try to re-check using the water's boiling point
100C and 212F if it satisfies then it is correct.
There is a web site you can go to called convert me. There is a simple formula too but I don't remember it.
F = (C * 9/5) + 32
C = (F-32)*5/9
If you click here, you can find some formulas:
http://encyclopedia.thefreedictionary.com/Celsius