Discussing the weather with Americans often includes the need to convert Celsius to Fahrenheit temperature scales. Friends in Europe complain of heat when the temperature is 35° and my first thought is 35° is a pretty cold day. 35 °F is barely above the freezing point of water. I also know 35 °C is the same as 95 °F. I have to do that conversion to agree with my friend’s opinion of a hot day. Fortunately, it is easy to convert Celsius to Fahrenheit.

### Convert Celsius to Fahrenheit Formula

The formula to convert Celsius to Fahrenheit is

°F = ^{9}⁄_{5}°C + 32

where °F and °C are the temperatures in Fahrenheit and Celsius respectively.

For those who don’t like working with fractions, use 1.8 in place of ^{9}⁄_{5}.

°F = 1.8 °C + 32

### Convert Celsius to Fahrenheit Example

**Question:** Room temperature is often given a value of 25 °C in homework problems. What is 25 °C in °F?

**Solution:** Use the formula above

°F = 1.8 °C + 32

Plug in 25 into the °C part of the equation.

°F = 1.8 (25) + 32

°F = 45 + 32

°F = 77 °F

**Answer:** 25 °C is the same as 77 °F.

### More Temperature Conversion Example Problems

Convert Fahrenheit to Celsius Example Problem

When Does Fahrenheit Equal Celsius?

Convert Celsius to Kelvin Example Problem

Convert Kelvin to Celsius Example Problem