Convert Kelvin to Celsius – Temperature Converter
Use this converter to move seamlessly between kelvin and celsius with instant precision.
Interactive Converter
Convert between kelvin and celsius with precision rounding.
Quick reference table
| Kelvin | 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 |
How to use this Kelvin converter
- 1. Enter the value you want to convert in the first input field. You can type decimals or whole numbers.
- 2. The result updates instantly with our high-precision formulas, rounding to sensible decimal places for practical use.
- 3. Use the swap button to reverse the calculation and move from celsius back to kelvin.
Conversion formula explained
To convert kelvin to celsius, multiply the input value by the precise conversion factor derived from international measurement standards. The formula looks like this:
°C = (K × 1) - 273.15
We compute the factor using the SI base unit as the truth source to guarantee accuracy even across chained conversions (e.g., meters → feet → inches).
Expert Q&A
What is the exact formula for kelvin to celsius?
Multiply your kelvin value by 1, then subtract 273.15 to reach celsius.
Can I convert celsius back to kelvin?
Yes. Swap the converter direction or add 273.15 from your celsius value, then divide the result by 1.
How accurate is this converter?
We anchor every conversion to internationally recognized base units. The calculator rounds to sensible decimals for readability, but core math runs at double precision.