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Celsius to Kelvin

Convert Celsius to Kelvin, with the math shown step by step.

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Kelvins
294.15 K

21 °C = 294.15 K

Also equals

How it works

K = °C + 273.15

A kelvin is the same size as a Celsius degree; the Kelvin scale just starts at absolute zero, 273.15 degrees below 0 °C. So add 273.15.

  1. Add 273.15 21 + 273.15 = 294.15 K

Nearby values

Degrees Celsius Kelvins Degrees Fahrenheit
18 °C 291.15 K 64.4
19 °C 292.15 K 66.2
20 °C 293.15 K 68
21 °C 294.15 K 69.8
22 °C 295.15 K 71.6
23 °C 296.15 K 73.4
24 °C 297.15 K 75.2

Printed from rocketcalc.io/temperature/celsius-to-kelvin/21