Temperature calculator

Kelvin to Celsius Converter

Convert kelvin (k) to celsius (c) with the exact temperature formula, worked examples, and a common-values table.

Exact conversion

Kelvin to celsius formula

c = (k × 1) − 273.15

1 k equals -272.15 c. 10 k equals -263.15 c.

About these units

k
Kelvin, an absolute temperature scale.
c
Degrees Celsius.
Browse temperature convertersReverse conversion

Common k to c values

kc
-40 k-313.15 c
0 k-273.15 c
20 k-253.15 c
100 k-173.15 c

Formula

Kelvin to celsius formula

c = (k × 1) − 273.15

1 k equals -272.15 c. 10 k equals -263.15 c.

Temperature guide

How to use the Kelvin to Celsius Converter

Convert kelvin (k) to celsius (c) with the exact temperature formula, worked examples, and a common-values table. The page also explains the kelvin to celsius formula and shows a practical example: 1 k equals -272.15 c. 10 k equals -263.15 c.

  1. 1

    Enter your details

    Enter the source value, then choose the units or values you want to convert.

  2. 2

    Check the calculation

    Review the result alongside the kelvin to celsius formula: c = (k × 1) − 273.15.

  3. 3

    Compare scenarios

    Change one or more inputs to see how they affect the kelvin to Celsius Converter result before you use the estimate.

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