40 celsius to fahrenheit. Convert 40 celsius to fahrenheit
Celsius to Fahrenheit: Multiply by 9, divide by 5, and then add 32 Fahrenheit to Celsius: Subtract 32, then multiply by 5, then divide by 9 Interesting fact: The Fahrenheit scale and the Celsius scale are the same at -40 degrees. This relation can also be used when converting from one scale to the other.
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