kelvin to degree Celsius converter

Convert kelvin to degree Celsius in the Temperature family. See a sample calculation, unit definitions, and the interactive converter.

Example conversion: 1 k

-272.15 degree Celsius

This example is calculated from the same unit registry used by the interactive converter.

Formula and unit definitions

Convert temperatures with the correct offsets between Celsius, Fahrenheit, Kelvin and Rankine.

target = ((source + source offset) × source factor ÷ target factor) − target offset

Source unit: kelvin (k), factor 1, offset 0.

Target unit: degree Celsius (c), factor 1, offset 273.15.

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Important note

The calculation is performed locally from the listed unit definitions. Display results are rounded for readability; high-precision and regulated work should use the governing standard and appropriate significant figures.

For high-precision, regulated or safety-critical use, check the underlying standard and its required precision. Historical and approximate units are identified in their names or family descriptions.

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