Formula
K to °C conversion formula
Use this relationship for a direct conversion:
°C = (K x 1) - 273.15
Worked example
10 K = -263.15 °C.
The kelvin-to-Celsius offset and Fahrenheit scale relationship are exact by definition.
Temperature conversion
Convert Kelvin to Celsius
1 kelvin (K) equals -272.15 celsius (°C). Enter any value below to convert from K to °C.
Enter a value and choose units. Results update instantly.
1 K = -272.15 °C
All Temperature units
From 1 K| Unit | Value |
|---|---|
| Celsius °C | -272.15 |
| Fahrenheit °F | -457.87 |
| Kelvin K | 1 |
| Rankine °R | 1.8 |
Recent conversions
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Quick reference
Kelvin to Celsius table
| Kelvin (K) | Celsius (°C) |
|---|---|
| -40 | -313.15 |
| -20 | -293.15 |
| 0 | -273.15 |
| 10 | -263.15 |
| 20 | -253.15 |
| 37 | -236.15 |
| 50 | -223.15 |
| 100 | -173.15 |
From unit
About the kelvin
The SI base unit of thermodynamic temperature.
Symbol: K
To unit
About the celsius
A derived temperature scale with 0 degrees at 273.15 kelvins.
Symbol: °C
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Source
Conversion standard
Definitions are checked against BIPM SI Brochure: thermodynamic temperature. Calculations use full internal precision before display rounding.
View the complete temperature converterQuestions
K to °C FAQ
How do you convert kelvin to celsius?
Use the formula °C = (K x 1) - 273.15. 1 kelvin (K) equals -272.15 celsius (°C).
Is the K to °C conversion exact?
The kelvin-to-Celsius offset and Fahrenheit scale relationship are exact by definition.