Celsius to Kelvin converter (°C → K)

22 °C = 295.15 K. 1 °C = 274.15 K. Type any value below for an instant answer, or find your number in the conversion chart.

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Instant answer
295.15 K
22 Celsius (°C) = 295.15 Kelvin
Most-searched values
Formula: K = °C + 273.15
Category: Temperature

°C to K formula

K = °C + 273.15

Worked example: 125 °C = 398.15 K. The defining value behind this factor is documented on our temperature standards page.

Celsius to Kelvin chart

Includes standard reference values plus the specific numbers people search for most.

°C to K conversion chart
Celsius (°C)Kelvin (K)
1 °C274.15 K
2 °C275.15 K
3 °C276.15 K
4 °C277.15 K
5 °C278.15 K
6 °C279.15 K
7 °C280.15 K
8 °C281.15 K
9 °C282.15 K
10 °C283.15 K
12 °C285.15 K
15 °C288.15 K
20 °C293.15 K
23 °C296.15 K
25 °C298.15 K
27 °C300.15 K
30 °C303.15 K
31 °C304.15 K
32 °C305.15 K
37 °C310.15 K
40 °C313.15 K
43 °C316.15 K
45 °C318.15 K
46 °C319.15 K
50 °C323.15 K
62 °C335.15 K
63 °C336.15 K
75 °C348.15 K
77 °C350.15 K
100 °C373.15 K
118 °C391.15 K
125 °C398.15 K
150 °C423.15 K
165 °C438.15 K
200 °C473.15 K
210 °C483.15 K
250 °C523.15 K
255 °C528.15 K
285 °C558.15 K
300 °C573.15 K
480 °C753.15 K
500 °C773.15 K
800 °C1,073.15 K
1000 °C1,273.15 K
2000 °C2,273.15 K
2350 °C2,623.15 K

Most-searched °C to K answers

125 °C to K

398.15 K

37 °C to K

310.15 K

15 °C to K

288.15 K

300 °C to K

573.15 K

45 °C to K

318.15 K

46 °C to K

319.15 K

255 °C to K

528.15 K

285 °C to K

558.15 K

23 °C to K

296.15 K

27 °C to K

300.15 K

77 °C to K

350.15 K

165 °C to K

438.15 K

When to convert °C to K

  • ▸Weather forecasts — Celsius is the global standard; the US still uses Fahrenheit. 22° in one scale feels very different in the other.
  • ▸Cooking — oven recipes swap between °C and °F; a 22° setting in one manual matches a different number in another.
  • ▸Fever & medical thresholds — 100.4 °F = 38.0 °C is the classic fever cutoff; conversion errors matter clinically.
  • ▸Science & chemistry — reactions specify temperature in °C or K; the conversion is fundamental.

Common mistakes

  • ✕Applying the wrong direction of the °F/°C formula (many people multiply by 5/9 instead of 9/5).
  • ✕Forgetting the +32 offset for Fahrenheit or the +273.15 offset for Kelvin.
  • ✕Using degrees Kelvin — Kelvin has no degree symbol (write "300 K", not "300 °K").
  • ✕A temperature and a temperature difference convert differently. To convert a reading, use °F = °C × 9/5 + 32. To convert a difference or an interval, drop the offset: a rise of 10 °C is a rise of 18 °F, not 50 °F. This is the single most common temperature conversion error.

Regional usage & source

Celsius is the global standard. Fahrenheit is used in the US. Kelvin is standard in science and engineering.

Reference: °F = °C × 9/5 + 32. Kelvin = °C + 273.15. The Kelvin was redefined in 2019 in terms of the Boltzmann constant (BIPM).

How these numbers are produced and rounded: methodology.

Other temperature converters

Celsius to Kelvin — FAQs

What is 125 °C in K?

125 °C = 398.15 K.

What is 37 °C in K?

37 °C = 310.15 K.

What is 15 °C in K?

15 °C = 288.15 K.

What is 300 °C in K?

300 °C = 573.15 K.

Is the °C to K result exact or rounded?

Temperature readings use an offset as well as a scale factor: K = °C + 273.15. This is not multiplication by a fixed per-degree value. Results are calculated before display rounding; a temperature difference uses only the scale factor, not the offset.

How do I convert K back to °C?

The reverse formula is °C = K − 273.15. For example, 274.15 K converts back to approximately 1 °C; a rounded intermediate result can introduce a small rounding difference.

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