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Kelvin to Celsius Converter

Convert Kelvin to Celsius instantly with precise calculations

Kelvin (K)

Celsius (°C)

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📚 Examples, Formula, and How To

📝 Kelvin to Celsius Formula

Kelvin to Celsius

°C = K - 273.15

To convert Kelvin to Celsius, simply subtract 273.15. This is because both scales have the same interval size, but different zero points.

Celsius to Kelvin

K = °C + 273.15

To convert Celsius to Kelvin, simply add 273.15. This accounts for the difference between absolute zero and the freezing point of water.

💡 Converting Kelvin to Celsius

Example 1

Convert: 273.15 K to Celsius

Start with the conversion formula: °C = K - 273.15

Substitute the value: °C = 273.15 - 273.15

Calculate: °C = 0

Result:0°C

Example 2

Convert: 373.15 K to Celsius

Start with the conversion formula: °C = K - 273.15

Substitute the value: °C = 373.15 - 273.15

Calculate: °C = 100

Result:100°C

Example 3

Convert: 310.15 K to Celsius

Start with the conversion formula: °C = K - 273.15

Substitute the value: °C = 310.15 - 273.15

Calculate: °C = 37

Result:37°C

📊 Kelvin to Celsius Conversion Table

Common Kelvin to Celsius Conversions

Kelvin	Celsius
0 K	-273.15°C
200 K	-73.15°C
250 K	-23.15°C
273.15 K	0°C
293.15 K	20°C
310.15 K	37°C
373.15 K	100°C
400 K	126.85°C

All values are rounded to 4 decimal places for practical use

⚙️ How to Convert Kelvin to Celsius

Temperature Scales

Kelvin and Celsius use the same scale intervals

They differ only in their zero points - Kelvin starts at absolute zero.

Kelvin to Celsius

Subtract 273.15 from Kelvin to get Celsius

Enter a value in Kelvin to convert to Celsius.

Celsius to Kelvin

Add 273.15 to Celsius to get Kelvin

Enter a value in Celsius to convert to Kelvin.

📚 What are Kelvin and Celsius?

📏 Kelvin(K)

Definition:

Kelvin is the base unit of temperature in the International System of Units (SI). It starts at absolute zero and uses the same scale intervals as Celsius.

History:

Named after Lord Kelvin (William Thomson) in 1848. It's based on absolute zero, the theoretical temperature where all molecular motion ceases.

Common Uses:

Scientific research and calculations
Physics and chemistry laboratories
Astronomy and space science
Engineering thermodynamics
International scientific standards

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Fun Fact:

Kelvin is the only temperature scale that doesn't use degree symbols - we say '300 K', not '300°K'! Absolute zero (0 K) is the coldest possible temperature in the universe.

📏 Celsius(°C)

Definition:

Celsius is a temperature scale where the freezing point of water is 0°C and the boiling point is 100°C at standard atmospheric pressure.

History:

Created by Anders Celsius in 1742, originally with 0° as boiling point and 100° as freezing point. The scale was later inverted to its current form.

Common Uses:

Weather reports worldwide (except US)
Scientific measurements
Medical thermometers globally
Cooking in most countries
International standards and trade

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Fun Fact:

Anders Celsius originally had his scale backwards - 0° was boiling and 100° was freezing! It was flipped after his death. Room temperature is about 20°C, which is 68°F.