Convert 0 K to Celsius
Temperature converter
0 K equals
-273.15°C
Extreme cold: Dangerous without protection
How to convert 0 K to °C
Follow these steps to check the answer yourself.
- 1
Write the conversion formula
Celsius is kelvin shifted by 273.15.
°C = K − 273.15
- 2
Substitute the Kelvin value
Replace K with 0.
°C = 0 − 273.15
- 3
Subtract 273.15
This gives the temperature in Celsius.
0 − 273.15 = -273.15
Answer: 0 K = -273.15°C
0 K and nearby temperatures
Kelvin values from 0 K to 5 K converted to Celsius and Fahrenheit. Linked values open their own conversion page.
| Kelvin | Celsius | Fahrenheit |
|---|---|---|
| 0 K (this page) | -273.15°C | -459.67°F |
| 1 K | -272.15°C | -457.87°F |
| 2 K | -271.15°C | -456.07°F |
| 3 K | -270.15°C | -454.27°F |
| 4 K | -269.15°C | -452.47°F |
| 5 K | -268.15°C | -450.67°F |
Kelvin to Celsius conversion chart
Common temperatures from 0 K to 1000 K. Bookmark or print this chart for quick reference.
| K | °C |
|---|---|
| 0 K | -273.15°C |
| 200 K | -73.15°C |
| 233.15 K | -40°C |
| 250 K | -23.15°C |
| 255.37 K | -17.78°C |
| 260 K | -13.15°C |
| 273.15 K | 0°C |
| 280 K | 6.85°C |
| K | °C |
|---|---|
| 290 K | 16.85°C |
| 293.15 K | 20°C |
| 298.15 K | 25°C |
| 300 K | 26.85°C |
| 310.15 K | 37°C |
| 320 K | 46.85°C |
| 330 K | 56.85°C |
| 350 K | 76.85°C |
| K | °C |
|---|---|
| 373.15 K | 100°C |
| 400 K | 126.85°C |
| 450 K | 176.85°C |
| 500 K | 226.85°C |
| 600 K | 326.85°C |
| 700 K | 426.85°C |
| 800 K | 526.85°C |
| 1000 K | 726.85°C |
Is 0 K hot or cold?
0 K (-273.15°C) reads as extreme cold on the thermometer: dangerous without protection. Typical context: cryogenic and scientific temperatures.
0 K is absolute zero.
Quick mental math
To estimate Kelvin to Celsius in your head, subtract 273 from the kelvin value.
0 − 273 = -273°C (exact answer: -273.15°C)
Dropping the 0.15 is fine for everyday use, but keep it for lab and engineering work.
To go the other way, use the Kelvin converter: -273.15°C converts back to 0 K.
Frequently asked questions
What is 0 K in Celsius?
0 K equals -273.15°C. This is calculated with the standard Kelvin to Celsius formula.
How do I convert 0 Kelvin to Celsius?
To convert Kelvin to Celsius, subtract 273.15. For 0 K the result is -273.15°C.
Is 0 K hot or cold?
-273.1°C is very cold - well below freezing. This is severe winter weather temperature.
What is the formula for Kelvin to Celsius conversion?
The formula is: °C = K − 273.15
Good to know
- Anders Celsius proposed his scale in 1742. It was originally inverted, with 0 for boiling water and 100 for freezing; the order was flipped soon after his death.
- The kelvin is the SI base unit of temperature. Since 2019 it has been defined by fixing the value of the Boltzmann constant, not by the properties of water.
- Kelvin is written without a degree sign: 300 K, not 300°K.
- A change of 1°C or 1 K equals a change of 1.8°F.
Sources
- SI Units – Temperature (NIST (US National Institute of Standards and Technology))
Conversion formulas between °C, °F and K, and the 273.15 offset.
- The kelvin (BIPM (International Bureau of Weights and Measures))
Definition of the kelvin and absolute zero.
Written and checked by Abdul Manan.
Last updated . Results are for general information; see the disclaimer.