Kelvin to Celsius Converter (K to °C)

Use this Kelvin to Celsius calculator to convert K to °C in seconds. Enter any Kelvin value to get the Kelvin to Celsius conversion instantly.
Kelvin to Celsius formula: °C = K − 273.15

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Formula: °C = K − 273.15

Kelvin to Celsius Conversion Table (K to °C)

Use this Kelvin to Celsius conversion table for quick K to C conversion. Each row shows the Kelvin to degree Celsius conversion and a real-world reference. Key scientific values are highlighted.

Kelvin (K) Celsius (°C) Context
0 K −273.15°C Absolute zero
77.15 K −196°C Liquid nitrogen
233.15 K −40°C Same value in °C and °F
253.15 K −20°C Typical freezer temperature
273.15 K 0°C Water freezes (sea level)
293.15 K 20°C Room temperature (approx.)
298.15 K 25°C Standard temperature in chemistry (often used)
310.15 K 37°C Average human body temperature
333.15 K 60°C Hot water
373.15 K 100°C Water boils (sea level)
473.15 K 200°C Typical oven temperature
773.15 K 500°C Red-hot metal
1273.15 K 1000°C Lava (approx.)
5778.15 K 5505°C Surface of the Sun (approx.)

Kelvin to Celsius Formula (K to °C)

°C = K − 273.15 Also written as: Celsius = Kelvin − 273.15

To convert Kelvin to Celsius, subtract 273.15 from the Kelvin value. This Kelvin to Celsius equation works because the Kelvin scale starts at absolute zero, which is −273.15°C.

The step size is identical on both scales. That means a 1 K change equals a 1°C change, so Kelvin to degree Celsius conversion does not require multiplication or division.

Worked examples (Kelvin to °C conversion)

Standard temperature
298.15 − 273.15 = 25°C
Often used as a reference in chemistry
Absolute zero
0 − 273.15 = −273.15°C
Lowest possible temperature
Boiling point of water
373.15 − 273.15 = 100°C
At sea level (standard pressure)

Reverse formula (Celsius to Kelvin)

K = °C + 273.15 Also written as: Kelvin = Celsius + 273.15

Need the reverse conversion? Use our Celsius to Kelvin Converter →

How to Convert Kelvin to Celsius (K to °C) — Step by Step

This is the simplest way to convert Kelvin to Celsius. For any K to C conversion, use the Kelvin to Celsius formula (equation): °C = K − 273.15.

1
Start with your Kelvin value (K).
Example: 300 K
2
Subtract 273.15.
300 − 273.15 = 26.85
3
The result is Celsius (°C).
Answer: 26.85 °C
Note: Kelvin cannot be negative, but Celsius can. For example, 0 Kelvin to Celsius is −273.15°C. This is why converting Kelvin to degree Celsius often produces negative results for low K values.

About the Kelvin Scale (K)

Kelvin (K) is an absolute temperature scale used in science. Its starting point is absolute zero at 0 K, which equals −273.15°C. Because of this, Kelvin values do not go below zero, even though Kelvin to Celsius conversion can produce negative Celsius results.

People often search “degree Kelvin,” but Kelvin is written as K (not °K). Scientists use Kelvin because it works cleanly in physics and chemistry formulas and makes temperature equations easier to handle compared with everyday scales.

This page is built for Kelvin scale to Celsius conversion and helps you convert Kelvin to degree Celsius using the standard equation.

It also converts kelvins to celsius for any value using the same conversion Kelvin to Celsius formula.

Kelvin to Celsius Conversion Chart (K to °C)

Quick K to C conversion chart from 0 Kelvin to Celsius (−273.15°C) up to 600 K. Use it as a fast Kelvin to degree Celsius conversion reference.

0 K -273.15 °C
1 K -272.15 °C
2 K -271.15 °C
3 K -270.15 °C
4 K -269.15 °C
10 K -263.15 °C
20 K -253.15 °C
50 K -223.15 °C
77 K -196.15 °C
100 K -173.15 °C
150 K -123.15 °C
200 K -73.15 °C
250 K -23.15 °C
273 K -0.15 °C
273.15 K 0 °C
298.15 K 25 °C
300 K 26.85 °C
310 K 36.85 °C
310.15 K 37 °C
350 K 76.85 °C
373.15 K 100 °C
400 K 126.85 °C
450 K 176.85 °C
500 K 226.85 °C
550 K 276.85 °C
600 K 326.85 °C
1000 K 726.85 °C
2000 K 1726.85 °C
3000 K 2726.85 °C
4000 K 3726.85 °C
5000 K 4726.85 °C
10000 K 9726.85 °C
30000 K 29726.85 °C
50000 K 49726.85 °C

Frequently Asked Questions

The Kelvin to Celsius formula (Kelvin to Celsius equation) is °C = K − 273.15. To convert Kelvin to Celsius, subtract 273.15 from the Kelvin value.
For Kelvin to degree Celsius conversion, use °C = K − 273.15. This is the simplest method for converting K to Celsius and works for any value.
Yes. This Kelvin to Celsius calculator uses the exact scientific Kelvin to Celsius conversion formula. Any tiny difference you may see is only from rounding the display.
“K to C conversion” means converting Kelvin (K) into Celsius (°C). The formula for K to C is °C = K − 273.15.
Scroll to the Kelvin to Celsius conversion chart section for a quick reference. For more values, use the Kelvin to Celsius conversion table.
0 K = −273.15°C. This is absolute zero. Kelvin cannot go below 0, but Celsius values can be negative after conversion.
100 − 273.15 = −173.15°C. This is a common example of converting Kelvin to Celsius.
273 − 273.15 = −0.15°C. If you use the exact freezing point value, 273.15 Kelvin to Celsius is 0°C.
300 − 273.15 = 26.85°C. This is close to room temperature and is often used in Kelvin to Celsius conversion examples.
200 − 273.15 = −73.15°C.
Kelvin is an absolute thermodynamic scale, so it’s written as K (not °K). People may say “degree Kelvin,” but the correct unit is Kelvin (K).

Temperature Converters

Celsius to Fahrenheit Fahrenheit to Celsius Fahrenheit to Kelvin Celsius to Kelvin Kelvin to Fahrenheit