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Celsius to Kelvin

25°C = 298.15K

For any other value: K = °C + 273.15

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298.15 K

Type a number. You can leave the unit in: 100 °C is fine.

Celsius to Kelvin, compared on the same scale 020406080100 273.15293.15313.15333.15353.15373.15 °C K
On the same scale: 20 °C is 293.15 K, and 100 °C is 373.15 K.

Celsius to Kelvin chart

The values people look up most.

Celsius to Kelvin: the values people look up most
Celsius Kelvin
25 °C 298.15 K
20 °C 293.15 K
37 °C 310.15 K
27 °C 300.15 K
100 °C 373.15 K
30 °C 303.15 K
22 °C 295.15 K
50 °C 323.15 K
21 °C 294.15 K
35 °C 308.15 K
23 °C 296.15 K
1 °C 274.15 K
15 °C 288.15 K
40 °C 313.15 K
24 °C 297.15 K
45 °C 318.15 K
55 °C 328.15 K
10 °C 283.15 K
500 °C 773.15 K
75 °C 348.15 K
18 °C 291.15 K
28 °C 301.15 K
60 °C 333.15 K
2 °C 275.15 K
273 °C 546.15 K
32 °C 305.15 K
200 °C 473.15 K
5 °C 278.15 K
19 °C 292.15 K
90 °C 363.15 K

Formula

K = °C + 273.15

Kelvin starts at absolute zero, so it is Celsius shifted by 273.15. There are no negative kelvin.

Where this number comes from

This factor is exact, not rounded. The degree Celsius is the kelvin shifted by exactly 273.15, as fixed by the SI.

Source: The International System of Units (SI Brochure), BIPM (Bureau International des Poids et Mesures).

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