Port Raptor

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

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Ratio Summary:

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

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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

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Based on the ratio:

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

etc..

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