## Temperature Typical Units

Common units for temperature are as follows:

INTERNATIONAL SYSTEM OF UNITS, SI

ENGLISH UNITS

Celsius Farenheit
Kelvin Rankine

### Celcius to Farenheit

$$\large{ C = 5/9 \;(F - 32) }$$

$$\large{ F = 9/5 \;(C + 32) }$$

### Celcius to Kelvin

$$\large{ K = C - 273.15 }$$

$$\large{ C = K + 273.15 }$$

### Farenheit to Rankine

$$\large{ R = F - 459.67 }$$

$$\large{ F = R + 459.67 }$$

## Celsius

Celsius, abbreviated as C, is a unit of temperature most commonly used through out the world.

### Celsius Formula

$$\large{ T_{°C} = \frac {T_ {°F} \;-\; 32°}{1.8} }$$

$$\large{ T_{°C} = 273.15° - T_ {°K} }$$

$$\large{ T_{°C} = \left( \frac {T_{°R}} {1.8} \right) - 273.15° }$$

Where:

$$\large{ T }$$ = temperature

$$\large{ C }$$ = celsius

$$\large{ F }$$ = fahrenheit

$$\large{ K }$$ = kelvin

$$\large{ R}$$ = rankine

## Fahrenheit

Fahrenheit, abbreviated as F, is a unit of temperature used in the United States and a few other countries.  Celsius is most commonly used through the world.

### Fahrenheit Formula

$$\large{ T_{°F} = 32° + \left( \frac{9}{5} \right) T_ {°C} }$$

$$\large{ T_{°F} = 459.67° - \left( \frac{9}{5} \right) T_ {°K} }$$

$$\large{ T_{°F} = 459.67° - T_ {°R} }$$

Where:

$$\large{ T }$$ = temperature

$$\large{ C }$$ = celsius

$$\large{ F }$$ = fahrenheit

$$\large{ K }$$ = kelvin

$$\large{ R }$$ = rankine

## Kelvin

Kelvin, abbreviated as K, is a unit of temperature normally used for scientific calculations.  Unlike celsius, fahrenheit and rankine, the word degree is not used.  Since Kelvin starts with absolute zero it has no negative numbers.

### Kelvin Formula

$$\large{ T_{ °K} = 273.15 ° + T_ { °C} }$$

$$\large{ T_{ °K} = \frac {T_ { °F} \;+\; 459.67°}{1.8} }$$

$$\large{ T_{°K} = \frac {T_{ °R}} {1.8} }$$

Where:

$$\large{ T }$$ = temperature

$$\large{ C }$$ = celsius

$$\large{ F }$$ = fahrenheit

$$\large{ K }$$= kelvin

$$\large{ R }$$ = rankine

## Rankine

Rankine, abbreviated as R, is a unit of temperature used in the US engineering field.  0 is set at absolute zero.

### Rankine Formula

$$\large{ T_{°R} = \left(273.15° + T_ { °C} \right )\; 1.8 }$$

$$\large{ T_{°R} = 459.67° + T_ { °F} }$$

$$\large{ T_{°R} = \left( T_{°K} \right) \;1.8 }$$

Where:

$$\large{ T }$$ = temperature

$$\large{ C }$$ = celsius

$$\large{ F }$$ = fahrenheit

$$\large{ K }$$ = kelvin

$$\large{ R }$$ = rankine