40.09 C to Kelvin
See below how to convert any value in C to KelvinDegrees , as wel as, the C to Kelvin formula or equation.
To use this temperature calculator, simply type the C value in the box at left and you're done. The result will be shown in the box at right.


To convert a C value to the corresponding value in Kelvin, just use the formula: [K] = [°C] + 273.15


What is Celsius ScaleThe Celsius scale was invented in 1742 by the Swedish astronomer Anders Celsius. It was initially defined by the freezing point of water and later changed its definition as being the melting point of ice. 100° C was defined as the boiling point of water. The Celsius scale is a derived scale once its defined in relation to the Kelvin temperature scale. 0 (zero) °C is exactly equivalent to 273.15 K, with a temperature difference of 1 °C equivalent to a difference of 1 K, meaning the unit size in each scale is the same.


What is Kelvin Scalekelvin is the fundamental unit of the Kelvin scale, an absolute temperature scale named after the British physicist William Thomson, Baron Kelvin. This scale is based on the definitions of the Centigrade scale and the experimental evidence that absolute zero is 273.15 °C. The following formulas can be used to convert a temperature from Kelvin (K) value to other temperature scales:


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