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Convert Kelvin to Celsius.

Input the value of kelvin below to convert instantly to celsius with standard conversions, definitions, and equations.

Temperature Converter
K
°C
K - 273.15 = °C Subtract 273.15 from the temperature in Kelvin to get the temperature in Celsius.

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How to Convert Kelvin to Celsius

To convert kelvin to celsius, we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.

kelvin-to-celsius-formula.py
# Mathematical Formula
K - 273.15 = °C
# Worked Example (5 K)
5 K - 273.15 = -268.1500 °C
What is a Kelvin?

Kelvin (K)

The SI unit of thermodynamic temperature, starting at absolute zero (0 K = -273.15°C).

What is a Celsius?

Celsius (°C)

The standard metric temperature scale, where water freezes at 0°C and boils at 100°C.

Kelvin to Celsius Conversion Table

Kelvin (K) Celsius (°C)
1 K -272.15 °C
2 K -271.15 °C
3 K -270.15 °C
5 K -268.15 °C
10 K -263.15 °C
15 K -258.15 °C
20 K -253.15 °C
25 K -248.15 °C
50 K -223.15 °C
100 K -173.15 °C
250 K -23.15 °C
500 K 226.85 °C
1000 K 726.85 °C

Celsius to Kelvin Conversion Table

Celsius (°C) Kelvin (K)
1 °C 274.15 K
2 °C 275.15 K
3 °C 276.15 K
5 °C 278.15 K
10 °C 283.15 K
15 °C 288.15 K
20 °C 293.15 K
25 °C 298.15 K
50 °C 323.15 K
100 °C 373.15 K
250 °C 523.15 K
500 °C 773.15 K
1000 °C 1273.15 K
Questions

Frequently Asked Questions

How do I convert kelvin to celsius?

Multiply the value in kelvin by the conversion factor -2.721500e+2. For example, to convert 5 kelvin to celsius: 5 × -2.721500e+2 = -1360.7500 °C.

What is the conversion factor from kelvin to celsius?

The conversion factor is -2.721500e+2. One kelvin is equal to -2.721500e+2 celsius.

What is the reverse conversion from celsius to kelvin?

To convert celsius back to kelvin, multiply by 274.15 (or divide the value by -2.721500e+2). One celsius is equal to 274.15 kelvin.

What temperature is absolute zero in Celsius?

Absolute zero is exactly -273.15°C, or 0 Kelvin.

How do you convert Celsius to Fahrenheit?

Multiply the Celsius temperature by 9/5 (1.8) and then add 32. For example, 10°C is (10 * 1.8) + 32 = 50°F.

At what temperature do Celsius and Fahrenheit meet?

Celsius and Fahrenheit are equal at exactly -40° (i.e. -40°C = -40°F).

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