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

Last updated: February 28, 2026

273.15 K = 0.00 °C

Using the formula °C = K − 273.15: 273.15 − 273.15 = 0.00 °C

Temperature Converter

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 273.15 Kelvin to Celsius, just subtract 273.15 from the Kelvin value.

Step-by-step Solution:

  1. Write down the formula: °C = K − 273.15

  2. Plug the value in the formula: 273.15 − 273.15

  3. Subtract 273.15: 0.00 (answer)

Nearby Conversions

Kelvin to Celsius Conversion Table (274–373 K)

KelvinCelsiusKelvinCelsius
2740.852751.85
2762.852773.85
2784.852795.85
2806.852817.85
2828.852839.85
28410.8528511.85
28612.8528713.85
28814.8528915.85
29016.8529117.85
29218.8529319.85
29420.8529521.85
29622.8529723.85
29824.8529925.85
30026.8530127.85
30228.8530329.85
30430.8530531.85
30632.8530733.85
30834.8530935.85
31036.8531137.85
31238.8531339.85
31440.8531541.85
31642.8531743.85
31844.8531945.85
32046.8532147.85
32248.8532349.85
32450.8532551.85
32652.8532753.85
32854.8532955.85
33056.8533157.85
33258.8533359.85
33460.8533561.85
33662.8533763.85
33864.8533965.85
34066.8534167.85
34268.8534369.85
34470.8534571.85
34672.8534773.85
34874.8534975.85
35076.8535177.85
35278.8535379.85
35480.8535581.85
35682.8535783.85
35884.8535985.85
36086.8536187.85
36288.8536389.85
36490.8536591.85
36692.8536793.85
36894.8536995.85
37096.8537197.85
37298.8537399.85

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The Kelvin-Celsius Bridge

273.15 K equals exactly 0 °C. This value represents the defined offset between the two scales — it is exact by definition, not a measured quantity. The triple point of water (273.16 K = 0.01 °C) was historically used to calibrate thermometers under the ITS-90 standard, and it differs from the freezing point by only 0.01 K due to the slight pressure dependence of the ice-water equilibrium.

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.