Celsius to Kelvin

Convert Celsius to Kelvin instantly. Free online °C to K converter for science and physics.

The Celsius to Kelvin converter is essential for scientific work, physics, and chemistry where the Kelvin scale is the standard. Kelvin is an absolute temperature scale starting at absolute zero, making it ideal for thermodynamic calculations. This tool instantly converts any Celsius temperature to its Kelvin equivalent, supporting students, researchers, and professionals in their scientific endeavors.

Converter

274.15

Formula: K = °C + 273.15

Common use cases

  • Physics and thermodynamics calculations
  • Chemistry experiments
  • Astronomy and astrophysics
  • Engineering specifications
  • Scientific research papers

How to use

  1. Enter the temperature in Celsius
  2. View the Kelvin equivalent instantly
  3. Works with negative Celsius values
  4. Copy results for calculations
  5. Clear for new conversions

FAQ

What is 0°C in Kelvin?

0°C equals 273.15 K (the freezing point of water).

Why is Kelvin used in science?

Kelvin starts at absolute zero (-273.15°C), where all molecular motion stops, making it essential for thermodynamic equations.

Is there a negative Kelvin?

No, Kelvin cannot be negative as 0 K is absolute zero—the lowest possible temperature.

What is room temperature in Kelvin?

Room temperature (20-25°C) equals approximately 293-298 K.