Celsius to Fahrenheit, Kelvin, Rankine, and Reaumur formulas and how to convert

Formulas to convert Celsius to Fahrenheit, Kelvin, Rankine, and Réaumur and example calculations.

Celsius to Fahrenheit formula and how to convert

Formula to convert Celsius to Fahrenheit (°C to °F) is:

T(°F) = T(°C) × 9/5 + 32

So, to convert Celsius to Fahrenheit, multiply the temperature in degrees Celsius T(°C) by 9, divide the result by 5 and then add 32.

Example

How to convert 20 degrees Celsius to Fahrenheit (°C to °F).

To convert 20 degrees Celsius to Fahrenheit, substitute T(°C) in the Celsius to Fahrenheit formula for 20 and make the calculation.

T(°F) = 20 × 9/5 + 32 = 36 + 32 = 68

T(°F) = 68 or

20 °C = 68 °F

20 degrees Celsius (°C) are equal to 68 degrees Fahrenheit (°F).

or, 20 Celsius to Fahrenheit is 68°F

Celsius to Kelvin formula and how to convert

Formula to convert Celsius to kelvin (°C to K) is:

T(K) = T(°C) + 273.15

So, to convert Celsius to kelvin, add 273.15 to the temperature in degrees Celsius T(°C).

Example

How to convert 20 degrees Celsius (°C) to kelvin (K)?

To convert 20 degrees Celsius to kelvin, substitute T(°C) in the Celsius to kelvin formula for 20 and make the calculation.

T(K) = 20 + 273.15 = 293.15

T(K) = 293.15 or

20 °C = 293.15 K

20 degrees Celsius (°C) are equal to 293.15 Kelvin (K).

or, 20 Celsius to Kelvin is 293.15K

Celsius to Rankine formula and how to convert

Formula to convert Celsius to Rankine (°C to °R) is:

T(°R) = [T(°C) + 273.15] × 9/5

Therefore, to convert Celsius to Rankine, add 273.15 to the temperature in degrees Celsius T(°C), multiply the result by 9 and then divide by 5.

Example

How to convert 20 degrees Celsius (°C) to degrees Rankine (°R)?

Substitute T(°C) in the Celsius to Rankine formula for 20 and make the calculation.

T(°R) = [20 + 273.15] × 9/5 = 293.15 × 9/5 = 527.67

T(°R) = 527.67 or

20 °C = 527.67 °R

20 degrees Celsius (°C) are equal to 527.67 degrees Rankine (°R).

Celsius to Réaumur formula and how to convert

Formula to convert Celsius to Réaumur (°C to °Ré) is:

T(°Ré) = T(°C) × 4/5

Therefore, to convert Celsius to Reaumur, multiply the temperature in degrees Celsius T(°C) by 4 and then divide by 5.

Example

How to convert 20 degrees Celsius (°C) to degrees Réaumur (°Ré)?

Substitute T(°C) in the Celsius to Réaumur formula for 20 and then make the calculation.

T(°Ré) = 20 × 4/5 = 16

T(°Ré) = 16 or

20 °C = 16 °Ré

20 degrees Celsius (°C) are equal to 16 degrees Réaumur (°Ré).