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Kelvin to Celsius Converter

Convert kelvins (K) to degrees Celsius (°C) as you type — °C = K − 273.15. Switch units, change the precision or copy the result.

How to use this tool

Steps for using the Unit Converter.

  1. Enter a value in From — kelvins are already selected.
  2. The result in degrees Celsius appears instantly. Change either unit to convert to anything else in temperature.
  3. Use the swap button for the reverse conversion, and set the decimal places you need.
  4. Turn on Show formula to see the calculation, then copy or share the result.

Example

0 K to °C

Kelvin
0 K
Celsius
°C = 0 − 273.15 = -273.15 °C

Common use cases

  • Weather forecasts and thermostat settings in °C and °F.
  • Oven temperatures in recipes (180 °C ≈ 356 °F).
  • Science, engineering and colour temperatures in kelvin.

Kelvin to Celsius conversion table

kelvins to degrees Celsius
Kelvin (K)Celsius (°C)
0 K-273.15 °C
77 K-196.15 °C
200 K-73.15 °C
250 K-23.15 °C
273.15 K0 °C
283.15 K10 °C
kelvins to degrees Celsius (continued)
Kelvin (K)Celsius (°C)
293.15 K20 °C
300 K26.85 °C
310.15 K37 °C
373.15 K100 °C
500 K226.85 °C
1,000 K726.85 °C

Values rounded to 6 decimal places.

Related conversions

The units

Kelvin (K)
SI base unit; 0 K is absolute zero. Part of the SI system.
Celsius (°C)
K − 273.15. Part of the Metric system.

How to convert kelvins to degrees Celsius

Turning lab, astronomy or colour-temperature figures into everyday Celsius.

To convert kelvins to degrees Celsius, use °C = K − 273.15. Temperature scales have different zero points, so the conversion adds an offset as well as scaling — multiplying alone gives the wrong answer.

Kelvin (K): SI base unit; 0 K is absolute zero. Celsius (°C): K − 273.15.

For the opposite direction, use the Celsius to kelvin converter. All temperature units are on the temperature converter.

Limitations

  • Results are rounded to the decimal places you choose; the calculation itself keeps full precision.

Frequently asked questions

How do I convert kelvins to degrees Celsius?

Use °C = K − 273.15. For example, 0 K = -273.15 °C and 273.15 K = 0 °C.

At what temperature are Celsius and Fahrenheit equal?

At −40: −40 °C = −40 °F.

What is normal body temperature in Fahrenheit?

37 °C = 98.6 °F.