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CelsiusFahrenheit.co

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

Last updated: February 28, 2026

0 °C = 273.15 K

Using the formula K = °C + 273.15: 0 + 273.15 = 273.15 K

Temperature Converter

How to convert from Celsius to Kelvin

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

K = °C + 273.15

To change 0° Celsius to Kelvin, just add 273.15 to the Celsius value.

Step-by-step Solution:

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

  2. Plug the value in the formula: 0 + 273.15

  3. Add 273.15: 273.15 (answer)

Nearby Conversions

Celsius to Kelvin Conversion Table (1–100 °C)

CelsiusKelvinCelsiusKelvin
1274.152275.15
3276.154277.15
5278.156279.15
7280.158281.15
9282.1510283.15
11284.1512285.15
13286.1514287.15
15288.1516289.15
17290.1518291.15
19292.1520293.15
21294.1522295.15
23296.1524297.15
25298.1526299.15
27300.1528301.15
29302.1530303.15
31304.1532305.15
33306.1534307.15
35308.1536309.15
37310.1538311.15
39312.1540313.15
41314.1542315.15
43316.1544317.15
45318.1546319.15
47320.1548321.15
49322.1550323.15
51324.1552325.15
53326.1554327.15
55328.1556329.15
57330.1558331.15
59332.1560333.15
61334.1562335.15
63336.1564337.15
65338.1566339.15
67340.1568341.15
69342.1570343.15
71344.1572345.15
73346.1574347.15
75348.1576349.15
77350.1578351.15
79352.1580353.15
81354.1582355.15
83356.1584357.15
85358.1586359.15
87360.1588361.15
89362.1590363.15
91364.1592365.15
93366.1594367.15
95368.1596369.15
97370.1598371.15
99372.15100373.15

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Freezing Point in Kelvin

0 °C corresponds to exactly 273.15 K. The offset of 273.15 between the Celsius and Kelvin scales is not a measurement but a defined constant — the Kelvin scale was specifically designed so that its degree size matches the Celsius degree and its zero coincides with absolute zero (−273.15 °C). This means converting between Celsius and kelvin requires only addition or subtraction, making it the simplest temperature conversion in physics.

Data Accuracy

The Kelvin is the SI base unit for thermodynamic temperature, defined since 2019 by fixing the Boltzmann constant at exactly 1.380 649 × 10−23 J/K. All conversions on this page apply the relation K = °C + 273.15, computed in double-precision floating point and rounded to one decimal place for display.

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.