Kelvin to Celsius

How to Convert Kelvin Temperature to Celsius Temperature?

Kelvin to Celsius temperature conversion can be done by subtracting 273.15 from the Kelvin temperature in order to obtain the required celsius temperature. The Kelvin scale and the celsius scale are two different temperature scales which are related by the following formula:

K = C + 273.15 (or) C = K – 273.15

Where C denotes the magnitude of the temperature in degrees celsius and K denotes the magnitude of the temperature in Kelvin.

It is important to note that the symbol that denotes the temperature scale must be changed after carrying out the conversion. For example, when converting 0 Kelvin to celsius, the celsius value becomes:

C = 0 – 273.15 = -273.15 oC

Thus, the magnitude of the temperature can be calculated with the help of the formula and the relevant symbol can then be assigned to the temperature value (oC for celsius and K for Kelvin). The value of the boiling point of water is 100 oC on the celsius scale and 373.15 K on the Kelvin scale.

Solved Examples on Kelvin to Celsius Temperature Conversions

Example 1

Convert 500 K to celsius:

Given, kelvin temperature = 500 K

C = K – 273.15

C = 500 – 273.15

C = 226.85

Therefore, 500 Kelvin is equal to a celsius temperature of 226.85 oC.

Example 2

Convert 750 K to celsius:

Given, kelvin temperature = 750 K

C = K – 273.15

C = 750 – 273.15

C = 476.85

Therefore, 750 Kelvin is equal to a celsius temperature of 476.85 oC.

Example 3

Convert 1573 K to celsius:

Given, kelvin temperature = 1573 K

C = K – 273.15

C = 1573 – 273.15

C = 1299.85

Therefore, 1573 Kelvin is equal to a celsius temperature of 1299.85 oC.

Example 4

Convert 2654 K to celsius:

Given, kelvin temperature = 2654 K

C = K – 273.15

C = 2654 – 273.15

C = 2380.85

Therefore, 2654 Kelvin is equal to a celsius temperature of 2380.85oC.

Example 5

Convert 373.15 K to celsius:

Given, kelvin temperature = 373.15K

C = K – 273.15

C = 373.15 – 273.15

C = 100.00

Therefore, 373.15 Kelvin is equal to a celsius temperature of 100 oC.

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Frequently Asked Questions on Kelvin to Celsius

What is absolute zero on the kelvin scale?

Although obtaining negative values for temperature on the Celsius scale is perfectly natural, the Kelvin scale has a minimum value of zero. Zero Kelvin is also called absolute zero. It is the point at which no more heat can be extracted from a system because there is no molecular motion, and there is no chance of lower temperature. Therefore, this implies that the lowest Celsius temperature that can possibly be achieved is equal to minus 273.15 C.

What is the significance of 273.15 K?

Water freezes at 0 degrees Celsius or +273.15 K at normal Earth-atmospheric pressure (at the sea-level), and boils at +100 degrees Celsius or +373.15 K. Therefore, a temperature of 0 K equals -273.15 degrees Celsius. A temperature of 273.15 K is 0 degrees Celsius. Subtract 273.15 to convert a kelvin temperature to Celsius.

What are the uses of the Kelvin scale?

The Kelvin scale is generally used for color temperature determination and is also used in lighting. In a lighting application, Kelvin temperature reflects the color temperature that relates to the physical temperature of an object, such as white, blue or bright red.

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