# Celsius conversion formulas

Conversion formulas from Celsius to Fahrenheit, Kelvin, Rankine, and Réaumur.

## Celsius to Fahrenheit formula

Formula for converting from degrees Celsius (°C) to degrees Fahrenheit (°F) is:

T(°F) = T(°C) × 9/5 + 32

How to convert 40 degrees Celsius (°C) to degrees Fahrenheit (°F)?

Substitute T(°C) in the Celsius to Fahrenheit formula for 40 and make the calculation.

T(°F) = 40 × 9/5 + 32

T(°F) = 104 or

40 °C = 104 °F

40 degrees Celsius is equal to 104 degrees Fahrenheit.

## Celsius to Kelvin formula

Formula for converting from degrees Celsius (°C) to kelvin (K) is:

T(K) = T(°C) + 273.15

How to convert 35 degrees Celsius (°C) to kelvin (K)?

Substitute T(°C) in the Celsius to Kelvin formula for 35 and make the calculation.

T(K) = 35 + 273.15

T(K) = 308.15 or

35 °C = 308.15 K

35 degrees Celsius is equal to 308.15 Kelvin.

## Celsius to Rankine formula

Formula for converting degrees Celsius (°C) to degrees Rankine (°R) is:

T(°R) = [T(°C) + 273.15] × 9/5

How to convert 45 degrees Celsius (°C) to degrees Rankine (°R)?

Substitute T(°C) in the Celsius to Rankine formula for 45 and make the calculation.

T(°R) = [45 + 273.15] × 9/5

T(°R) = 572.67 or

45 °C = 572.67 °R

45 degrees Celsius is equal to 572.67 degrees Rankine.

## Celsius to Réaumur formula

Formula for converting degrees Celsius (°C) to degrees Réaumur (°Ré) is:

T(°Ré) = T(°C) × 4/5

How to convert 42 degrees Celsius (°C) to degrees Réaumur (°Ré)?

Substitute T(°C) in the Celsius to Réaumur formula for 42 and then make the calculation.

T(°Ré) = 42 × 4/5

T(°Ré) = 33.6 or

42 °C = 33.6 °Ré

42 degrees Celsius is equal to 33.6 degrees Réaumur.