K → °C

Kelvin to Degrees Celsius

Convert kelvin to degrees Celsius with an exact, deterministic calculation.

LIVE CONVERSIONDECIMAL ENGINE EXACT_

FROM · KTO · °C-272.15

1 K = -272.15 °C

FORMATPRECISION

FORMULA

How to convert

Convert K to the base scale, then apply the °C scale and offset.

Example: 10 K = -263.15 °C.

QUICK ANSWER

1 Kelvin

-272.15 °C

REFERENCE TABLE

Kelvin to Celsius

kelvin	degrees Celsius
1 K	-272.15 °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

EDITORIALLY REVIEWEDConvertor4U Editorial Team · 16 August 2026

ABOUT THIS CONVERSION

Convert kelvin to degrees Celsius

This page converts kelvin (K) to degrees Celsius (°C). Convertor4U first interprets the input using Kelvin's definition, then expresses the same quantity in Celsius. The result is calculated from the scale offsets shown in the formula, not from a rounded lookup table.

Real-world example

For reading a weather forecast, oven setting, laboratory result, or equipment limit, an input of 20 K converts to -253.15 °C. Keep extra digits while calculating, then round only the final value to the precision the task actually needs.

Rounding and precision

Weather and room temperatures usually need no more than one decimal place. Laboratory work should follow instrument uncertainty. Preserve the offset calculation before rounding; rounding the intermediate Celsius or kelvin value can shift the final answer.

Regional context

Most countries report everyday temperature in Celsius, while the United States commonly uses Fahrenheit. Scientific standards use kelvin without the degree sign. Recipe temperatures must be checked for both scale and oven behavior.

Common mistake

Temperature scales have offsets, so multiplying by a single ratio is usually wrong.

Editorial method

Definitions and sources are listed below. Calculations retain more precision than the default display and round only for presentation.

USEFUL ANSWERS

K to °C FAQs

How do I convert kelvin to degrees Celsius?

Enter the K value in the calculator. It applies the scale offsets shown in the formula and returns the equivalent in °C; the formula and common-value table are shown on this page.

Is the K to °C conversion exact?

Defined measurement relationships are calculated with decimal arithmetic from stored standards. The displayed answer may be rounded for readability. Currency results instead depend on the dated reference rate shown.

How many decimal places should I keep?

What should I check before using the result?

Temperature scales have offsets, so multiplying by a single ratio is usually wrong.

FROM UNIT

Kelvin

The Kelvin scale (K) is converted to Kelvin (K) with base = value × 1 + 0. Its stored scale and offset express readings as kelvin before conversion.

BIPM SI Brochure and exact international definitions ↗Definition verified 14 August 2026

TO UNIT

Celsius

Degrees Celsius use the same interval as kelvin, with 0 °C equal to 273.15 K. Its stored scale and offset express readings as kelvin before conversion.