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Convert Kelvin to Celsius

Kelvin to Celsius conversion table

Kelvin (K)Celsius (°C)
1 K-272.15 °C
2 K-271.15 °C
5 K-268.15 °C
10 K-263.15 °C
25 K-248.15 °C
50 K-223.15 °C
100 K-173.15 °C
200 K-73.15 °C
500 K226.85 °C
1000 K726.85 °C

How to convert kelvin to celsius

The K-to-°C conversion appears often when working with temperature data across different unit systems. Temperature scales differ around the world — Celsius is standard in most countries, Fahrenheit dominates in the United States, and Kelvin is used in scientific work.

Formula: Subtract 273.15 from the Kelvin value. In equation form: °C = K − 273.15.

For instance, converting 5 K gives -268.15 °C. Try different values using the quick-value chips or type directly into the input field.

Common mistake: A common error is applying a simple multiplication factor to temperature, as you would with length. Temperature conversions require adding or subtracting offsets (such as 32°F or 273.15 K).

Bookmark this page for quick K to °C conversions, or use the swap button to reverse the direction and convert °C back to K.

Related conversions

Celsius to Kelvin

Frequently asked questions

1 K equals -272.15 °C.

Subtract 273.15 from the Kelvin value.

10 K = -263.15 °C.