Celsius to Fahrenheit

The Celsius and Fahrenheit scales use different zero points and different-sized degrees, so you need both a scale change and an offset. A change of 1°C corresponds to a change of 9/5°F, which is why Celsius is multiplied by 9/5; then 32 is added because 0°C is equal to 32°F, not 0°F. This formula converts any Celsius temperature into its Fahrenheit equivalent.

Use this when reading weather reports, cooking instructions, science labs, or any situation where a temperature is given in Celsius but you need Fahrenheit. It is especially useful when comparing temperatures across countries or converting measurements for homework and experiments.

• Forgetting to add 32 after multiplying
• Using 5/9 instead of 9/5 when converting from Celsius to Fahrenheit
• Multiplying by 9/5 and then subtracting 32 instead of adding it