Convert Celsius to Kelvin

Temperature (degrees Celsius):
Temperature (Kelvin):

The calculator allows you to convert celsius to kelvin.

Perform the reverse calculation: convert kelvin to celsius

TK = T°C + 273.15

T°C = temperature in degrees Celsius
TK = temperature in Kelvin
0°C = 273.15 K

To convert temperatures in degrees Celsius to Kelvin, add 273.15.


We are going to convert a temperature T of 19°C.
Temperature T = 19°C TK = T°C + 273.15
T = 19°C = 19 + 273.15 = 292.15 K

Celsius to Fahrenheit chart

Convert Celsius to Kelvin:

-273.15°C = 0 K - absolute zero temperature
-20 °C = 253.15 K
-10°C = 263.15 K
0°C = 273.15 K - freezing / melting point of water
10°C = 283.15 K
20°C = 293.15 K
30°C = 303.15 K
37°C = 310.15 K - average body temperature
40°C = 313.15 K
50°C = 323.15 K
60°C = 333.15 K
70°C = 343.15 K
80°C = 353.15 K
90°C = 363.15 K
100°C = 373.15 K - boiling point of water


The degree Celsius (symbol: °C) is a unit of temperature on the Celsius scale. The degree Celsius is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale.

What is the difference between Celsius and Kelvin?

The Celsius and Kelvin scales are two temperature scales. Celsius (°C) is a measure of temperature. Kelvin (K) is another measure of temperature.
The zero point in the Kelvin scale is the absolute zero temperature.
The unit difference between Celsius and Kelvin scales is the same but different starting point. One-degree increase in the Celsius scale is the same as a one unit increase in the Kelvin scale.


The Kelvin (abbreviation K) is the Standard International unit of thermodynamic temperature. There is no such thing as a below-zero Kelvin figure. Kelvin scale is a temperature scale that has no negative values. The Kelvin scale differs from the Celsius temperature scale.

The Kelvin is equal in size to the degree Celsius (the Kelvin degree is the same size as the Celsius degree), but instead of using the freezing point of water as its zero point, the Kelvin scale starts at absolute zero.

The Klevin scale was invented by Lord Kelvin (1824-1907). It is a scale of temperature beginning at absolute zero (-273.15° C).

William Thomson, known as Lord Kelvin invented the Kelvin scale in 1848. William Thomson was ennobled as Lord Kelvin. The Kelvin Scale measures the ultimate extremes of hot and cold. The scales of temperature we are most accustomed to using in our daily lives are Celsius (°C or degrees Celsius) and Fahrenheit (°F or degrees Fahrenheit).