What is 0 K in Celsius?

0 kelvin is equal to -273.15 Celsius.

What is 0 kelvin in Celsius?

0 K equals −273.15 °C. This is absolute zero, the theoretical point at which all thermal motion ceases. It cannot be physically reached but has been approached to within billionths of a kelvin using laser cooling techniques.

How do you calculate the conversion?

The formula is °C = K − 273.15. Plugging in: 0 − 273.15 = -273.15 °C.

0 K (-273.15 °C) is an extreme cold temperature, dangerous without proper protection. Exposed skin can develop frostbite within minutes.

0 Kelvin to Celsius (K to °C) – Instant & Accurate

Last updated: February 28, 2026

0 K = -273.15 °C

Using the formula °C = K − 273.15: 0 − 273.15 = -273.15 °C

Temperature Converter

Kelvin (K)

Celsius (°C)

How to convert from Kelvin to Celsius

It is easy to convert a temperature value from Kelvin to Celsius by using the formula below:

°C = K − 273.15

To change 0 Kelvin to Celsius, just subtract 273.15 from the Kelvin value.

Step-by-step Solution:

Write down the formula: °C = K − 273.15
Plug the value in the formula: 0 − 273.15
Subtract 273.15: -273.15 (answer)

Nearby Conversions

Kelvin to Celsius Conversion Table (274–373 K)

Kelvin	Celsius	Kelvin	Celsius
274	0.85	275	1.85
276	2.85	277	3.85
278	4.85	279	5.85
280	6.85	281	7.85
282	8.85	283	9.85
284	10.85	285	11.85
286	12.85	287	13.85
288	14.85	289	15.85
290	16.85	291	17.85
292	18.85	293	19.85
294	20.85	295	21.85
296	22.85	297	23.85
298	24.85	299	25.85
300	26.85	301	27.85
302	28.85	303	29.85
304	30.85	305	31.85
306	32.85	307	33.85
308	34.85	309	35.85
310	36.85	311	37.85
312	38.85	313	39.85
314	40.85	315	41.85
316	42.85	317	43.85
318	44.85	319	45.85
320	46.85	321	47.85
322	48.85	323	49.85
324	50.85	325	51.85
326	52.85	327	53.85
328	54.85	329	55.85
330	56.85	331	57.85
332	58.85	333	59.85
334	60.85	335	61.85
336	62.85	337	63.85
338	64.85	339	65.85
340	66.85	341	67.85
342	68.85	343	69.85
344	70.85	345	71.85
346	72.85	347	73.85
348	74.85	349	75.85
350	76.85	351	77.85
352	78.85	353	79.85
354	80.85	355	81.85
356	82.85	357	83.85
358	84.85	359	85.85
360	86.85	361	87.85
362	88.85	363	89.85
364	90.85	365	91.85
366	92.85	367	93.85
368	94.85	369	95.85
370	96.85	371	97.85
372	98.85	373	99.85

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Absolute Zero in Celsius

0 K equals −273.15 °C, the absolute zero of the thermodynamic temperature scale. This is the point at which a system's thermal energy reaches its quantum mechanical minimum. Experimental physicists have cooled systems to within fractions of a nanokelvin of this limit using techniques such as laser cooling (which earned Steven Chu, Claude Cohen-Tannoudji, and William D. Phillips the 1997 Nobel Prize) and evaporative cooling in Bose-Einstein condensate experiments.

Data Accuracy

Results on this page are produced by subtracting the exact offset of 273.15 from the Kelvin input, in accordance with the thermodynamic definition adopted by the SI. Internal arithmetic uses IEEE 754 double-precision, and displayed values are rounded to one decimal place. All figures are consistent with the ITS-90 temperature scale.

About This Page

Content maintained by the CelsiusFahrenheit.co editorial team. All conversions follow the International Temperature Scale of 1990 (ITS-90) as defined by the Bureau International des Poids et Mesures (BIPM). Calculations use IEEE 754 double-precision arithmetic. Last reviewed: February 2026.