Kelvin to Celsius Conversion Table
0 to 1273 K — scientific and engineering reference
Any temperature value in K can be converted to °C using the conversion factor:
- 1 Kelvin = -272.15 Celsius
- °C = K - 273.15
K → °C Quick Converter
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What is Kelvin (K)?
The kelvin (K) is the SI base unit of thermodynamic temperature. Since the 2019 SI redefinition, it is defined by fixing the Boltzmann constant at exactly 1.380 649 × 10⁻²³ J/K.
What is Celsius (°C)?
The degree Celsius (°C) is the SI-derived unit of temperature. It is defined so that 0 °C = 273.15 K exactly, with the same unit increment as the kelvin.
How to Convert Kelvin to Celsius
Example
Convert 120 K to °C:
120 K = -153.15 °C
Kelvin to Celsius Conversion Table
Values from 0 to 1,273 K.
Frequently Asked Questions
What is 0 K in Celsius?
0 K equals -273.15°C. This is absolute zero, the lowest possible temperature in the universe. At this temperature, all molecular motion ceases.
What is 273.15 K in Celsius?
273.15 K equals 0°C, the freezing point of water at standard atmospheric pressure. This offset of 273.15 is the key to converting between Kelvin and Celsius.
How do I convert Kelvin to Celsius?
Simply subtract 273.15 from the Kelvin value. For example, 373.15 K - 273.15 = 100°C (the boiling point of water). The formula is °C = K - 273.15.
What is 300 K in Celsius?
300 K equals 26.85°C, which is close to a comfortable room temperature. In many scientific approximations, 300 K is used as a standard reference for "room temperature."
Can Kelvin values be negative?
No, Kelvin values cannot be negative. The Kelvin scale starts at absolute zero (0 K), which is the lowest physically possible temperature. This is one of the key advantages of the Kelvin scale for scientific calculations.
