Enter the temperature in Celsius, Fahrenheit, or Kelvin into the calculator to determine the missing temperature values.

Absolute Temperature Calculator

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Absolute Temperature Formula

The following formula is used to calculate the absolute temperature in Kelvin from Celsius.

K = C + 273.15

Variables:

  • K is the temperature in Kelvin
  • C is the temperature in Celsius

To calculate the temperature in Kelvin, add 273.15 to the temperature in Celsius.

What is Absolute Temperature?

Absolute temperature, also known as thermodynamic temperature, is a measure of temperature that is independent of the properties of any specific material. It is measured in Kelvin (K), which is the SI unit for temperature. The Kelvin scale starts at absolute zero, the theoretical point where all molecular motion ceases. Absolute temperature is used in scientific contexts because it provides a more accurate and consistent measure of temperature compared to other scales like Celsius or Fahrenheit. This scale is particularly useful in fields such as physics, chemistry, and engineering, where precise temperature measurements are crucial.

How to Calculate Absolute Temperature?

The following steps outline how to calculate the Absolute Temperature.


  1. First, determine the temperature in Celsius (C).
  2. Next, add 273.15 to the temperature in Celsius to convert it to Kelvin (K).
  3. Finally, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Temperature in Celsius (C) = 25

Temperature in Kelvin (K) = 298.15