# How to convert a temperature to Fahrenheit

Formulas to convert a unit of temperature to degrees Fahrenheit.

## Formula to convert Celsius to Fahrenheit

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

T(°F) = T(°C) × 9/5 + 32

How many degrees Fahrenheit (°F) correspond to 80 degrees Celsius (°C)?

Replace T(°C) in the °C to °F formula for 80, multiply by 9, divide by 5, then add 32.

T(°F) = 80 × 9/5 + 32

T(°F) = 176 or

80 °C = 176 °F

80 degrees Celsius correspond to 176 degrees Fahrenheit.

## Formula to convert Kelvin to Fahrenheit

Formula to convert from kelvins (K) to degrees Fahrenheit (°F) is:

T(°F) = T(K) × 9/5 - 459.67

How many degrees Fahrenheit (°F) correspond to 200 kelvins (K)?

Replace T(K) in the K to °F formula for 200, multiply by 9, divide by 5, then subtract 459.67.

T(°F) = 200 × 9/5 - 459.67

T(°F) = -99.67 or

200 K = -99.67 °F

200 kelvins correspond to -99.67 degrees Fahrenheit.

## Formula to convert Réaumur to Fahrenheit

Formula to convert from degrees Réaumur (°Ré) to degrees Fahrenheit (°F) is:

T(°F) = T(°Ré) × 9/4 + 32

How many degrees Fahrenheit (°F) correspond to 50 degrees Réaumur (°Ré)?

Replace T(°Ré) in the °Ré to °F formula for 50, multiply by 9, divide by 4, then add 32.

T(°F) = 50 × 9/4 + 32

T(°F) = 144.5 or

50 °Ré = 144.5 °F

50 degrees Réaumur correspond to 144.5 degrees Fahrenheit.

## Formula to convert Rankine to Fahrenheit

Formula to convert from degrees Rankine (°R) to degrees Fahrenheit (°F) is:

T(°F) = T(°R) - 459.67

How many degrees Fahrenheit (°F) correspond to 500 degrees Rankine (°R)?

Replace T(°R) in the °R to °F formula for 500 and then subtract 459.67.

T(°F) = 500 - 459.67

T(°F) = 40.33 or

500 °R = 40.33 °F

500 degrees Rankine equals 40.33 degrees Fahrenheit.