Convert Celsius to Kelvin – Temperature Converter
Use this converter to move seamlessly between celsius and kelvin with instant precision.
Interactive Converter
Convert between celsius and kelvin with precision rounding.
Quick reference table
| Celsius | Kelvin |
|---|---|
| 1 °C | 274.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 25 °C | 298.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
How to use this Celsius 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 kelvin back to celsius.
Conversion formula explained
To convert celsius to kelvin, multiply the input value by the precise conversion factor derived from international measurement standards. The formula looks like this:
K = (°C × 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 celsius to kelvin?
Multiply your celsius value by 1, then add 273.15 to reach kelvin.
Can I convert kelvin back to celsius?
Yes. Swap the converter direction or subtract 273.15 from your kelvin 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.