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.
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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
Go to Celsius to Fahrenheit calculator here.
See also how to convert 180 Celsius to Fahrenheit here.
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).