## Monday, January 20, 2014

### Reitontor: Temperature Unit Convertor

This is a tool to convert the temperature unit.

The Kelvin unit has the same magnitude as Celsius (1:1). I add the Celsius value with the rounded constant of 273 to convert it to Kelvin, and subtract the Kelvin value with 273 to convert it to Celsius.

Try this :
FYI, the input and output are rounded up to one decimal place

### Greetings, I'm Reitontor

Temperature unit conversion calculator

Kelvin
Celsius
Fahrenheit
Reaumur

Reitontor

Ratio Summary:

`K : C : F : Re = 5 ( +273 ) : 5 : 9 ( +32 ) : 4`

`K: Kelvin, C: Celsius, F: Fahrenheit, Re: Reaumur`

Relationships:
Kelvin ► Celsius
`Kelvin value - 273`
Kelvin ► Fahrenheit
`( [Kelvin value - 273] * 9/5 ) + 32`
Kelvin ► Reaumur
`(Kelvin value - 273) * 4/5`
Celsius ► Kelvin
`Celsius value + 273`
Celsius ► Fahrenheit
`(Celsius value * 9/5) + 32`
Celsius ► Reaumur
`Celsius value * 4/5`
Fahrenheit ► Kelvin
`( [Fahrenheit value - 32] * 5/9 ) + 273`
Fahrenheit ► Celsius
`(Fahrenheit value - 32) * 5/9`
Fahrenheit ► Reaumur
`(Fahrenheit value - 32) * 4/9`
Reaumur ► Kelvin
`(Reaumur value * 5/4) + 273`
Reaumur ► Celsius
`Reaumur value * 5/4`
Reaumur ► Fahrenheit
`(Reaumur value * 9/4) + 32`

Based on the ratio:

• `0 °C = 0 °R`.
• `-40 °C = -40 °F`.
• `-25.6 °R = -25.6 °F`.
• `-1092 °R = -1092 K`.
etc..

There are other temperature scale units, such as Rankine, Rømer, Newton, and Delisle. You can find them at Wikipedia.