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C++ How To Convert Celsius to Fahrenheit

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Convert Celsius to Fahrenheit

To convert Celsius to Fahrenheit, multiply by 9, divide by 5, and add 32:

Example

double celsius = 25;
double fahrenheit = celsius * 9 / 5 + 32;

cout << celsius << " Celsius is " << fahrenheit << " Fahrenheit";

Try it Yourself »

Explanation:
The formula is F = C * 9 / 5 + 32.
We use double instead of int, so temperatures with decimals, like 36.6, are also converted correctly.

Related Pages

C++ Operator Precedence

C++ Numeric Data Types

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