Temperature

Celsius to Kelvin Converter

Convert Celsius to Kelvin with a fast calculator, formula, examples and API-ready result.

NewAPI Ready

Focused calculator

Calculate Celsius to Kelvin Converter

298.15 kelvin Sample: 25 Celsius

Formula

Formula: Kelvin = Celsius + 273.15.

Example: 25 Celsius = 298.15 Kelvin.

The calculator keeps full precision internally and rounds only for display.

Common examples

InputResult
-40 Celsius233.15 Kelvin
0 Celsius273.15 Kelvin
25 Celsius298.15 Kelvin

JSON API example

Use the public JSON endpoint with these query parameters.

  • value25
  • fromcelsius
  • tokelvin
GET https://api.convematik.com/convert?value=25.0&from=celsius&to=kelvin

{
  "value": 25.0,
  "from": "celsius",
  "to": "kelvin",
  "result": 298.15
}

Common questions

What does the Celsius to Kelvin Converter do?

It converts Celsius to Kelvin using Convematik's unit conversion engine.

What formula does it use?

Kelvin = Celsius + 273.15.

Can I use decimal values?

Yes. Enter whole numbers or decimals and the calculator returns a decimal result.

Is this page free?

Yes. The converter runs as a free browser tool and can also be accessed through the API.