kelvin to celsius converter

Convert Kelvin (K) to Celsius (°C) for school, work, travel or projects. Enter any finite value, reverse the units, copy the result and keep the calculation on your device.

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Value

From

Result

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Formula

°C = K − 273.15

The converter uses the defined base unit for Temperature; temperature pairs use an offset formula. Values are rounded only for display.

Worked example

For example, 5 K = -268.15 °C. Try another value above to calculate it locally.

Common values

1 K = -272.15 °C

5 K = -268.15 °C

10 K = -263.15 °C

20 K = -253.15 °C

50 K = -223.15 °C

100 K = -173.15 °C

celsius to kelvin converter →

How to use the kelvin to celsius

1 Enter a value in Kelvin (K).
2 Check the Kelvin (K) to Celsius (°C) formula and common values table.
3 Copy the result or swap the units for the reverse conversion.

Frequently asked questions

What does the kelvin to celsius converter calculate?

Kelvin (K) values are converted to Celsius (°C) using the selected unit definition. Temperature uses its offset formula rather than a simple multiplication.

Does this converter upload my value?

No. The calculation runs locally in your browser, and the value is not sent to a server.

Can I convert the result back?

Yes. Use the reverse conversion link or swap the units in the converter.

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