Unit definitions

Celsius

Celsius is defined by the temperatures at which water freezes ($0 \ \text{°C}$) and boils ($100 \ \text{°C}$) at standard atmospheric pressure. Temperature in Celsius is equal to $\text{K} - 273.15$.

Fahrenheit

Fahrenheit is a scale commonly used in the United States. Temperature in $^{\circ}\text{F}$ is equal to $\text{K} \times \frac{9}{5} - 459.67$.

How to convert Celsius to Fahrenheit

$$\text{Temperature}_{\text{°F}} = \text{Temperature}_{\text{°C}} \cdot \frac{9}{5} + 32$$

Examples

Example 1

Convert $25.0\ \text{°C}$ to $\text{°F}$.

$$\text{Temperature}_{\text{°F}} = 25.0 \cdot \frac{9}{5} + 32$$

$$\text{Temperature}_{\text{°F}} = 77$$

$$\therefore \ 25.0\ \text{°C} = 77 \ \text{°F}$$

Example 2

Convert $75.0\ \text{°C}$ to $\text{°F}$.

$$\text{Temperature}_{\text{°F}} = 75.0 \cdot \frac{9}{5} + 32$$

$$\text{Temperature}_{\text{°F}} = 167$$

$$\therefore \ 75.0\ \text{°C} = 167 \ \text{°F}$$

Example 3

Convert $100.0\ \text{°C}$ to $\text{°F}$.

$$\text{Temperature}_{\text{°F}} = 100.0 \cdot \frac{9}{5} + 32$$

$$\text{Temperature}_{\text{°F}} = 212$$

$$\therefore \ 100.0\ \text{°C} = 212 \ \text{°F}$$

Example 4

Convert $140.0\ \text{°C}$ to $\text{°F}$.

$$\text{Temperature}_{\text{°F}} = 140.0 \cdot \frac{9}{5} + 32$$

$$\text{Temperature}_{\text{°F}} = 284$$

$$\therefore \ 140.0\ \text{°C} = 284 \ \text{°F}$$

Example 5

Convert $165.0\ \text{°C}$ to $\text{°F}$.

$$\text{Temperature}_{\text{°F}} = 165.0 \cdot \frac{9}{5} + 32$$

$$\text{Temperature}_{\text{°F}} = 329$$

$$\therefore \ 165.0\ \text{°C} = 329 \ \text{°F}$$

Celsius to Fahrenheit conversion table

Celsius to Fahrenheit conversion table

Celsius [°C]	Fahrenheit [°F]
1	33.8
2	35.6
3	37.4
4	39.2
5	41
6	42.8
7	44.6
8	46.4
9	48.2
10	5E+1

Convert Celsius to other Temperature units

Convert Celsius to other Temperature units

Celsius [°C]	Other unit
1	274.15 Kelvin [K]
1	493.47 Rankine [°R]