Celsius to Kelvin Converter


Created by :- Narendra
Last Updated: 02-07-2025

Celsius to Kelvin Converter

Celsius to Kelvin Converter is a handy tool that helps you convert temperatures from Celsius (°C) to Kelvin (K) instantly. It is widely used in scientific fields, laboratories, schools, and engineering where absolute temperature measurements are necessary.

What is Celsius to Kelvin Conversion?

The Kelvin scale is the SI (International System of Units) unit for temperature. Unlike the Celsius scale, Kelvin starts at absolute zero—the coldest possible temperature where all molecular motion stops.
To convert Celsius to Kelvin, use the simple formula: Kelvin = Celsius + 273.15

Simple Conversion Formula:

K = °C + 273.15

Where K is temperature in Kelvin and °C is temperature in Celsius

Conversion Example

Let's convert 25°C to Kelvin:

Kelvin = 25 + 273.15 = 298.15 K

So, 25°C equals 298.15 K

Practical Applications

Physics & Chemistry

Essential for experiments involving thermodynamics and gas laws.

Meteorology

Used in atmospheric research and weather modeling.

Engineering

Critical for thermal systems design and simulations.

Education

Fundamental for students learning thermodynamics.

Converter Features

  • Instant & Accurate Conversion
  • Mobile-Friendly Interface
  • No Registration Required
  • 100% Free & Secure
  • Perfect for Students
  • Professional Grade Accuracy

FAQ on Celsius to Kelvin Converter

1. How do you convert Celsius to Kelvin easily?

Simply add 273.15 to the Celsius temperature. For example, 0°C + 273.15 = 273.15 K.

2. Why do scientists use Kelvin instead of Celsius?

Kelvin starts at absolute zero, making it ideal for scientific calculations involving thermal energy where negative values would be problematic.

3. Is 0 Kelvin possible in real life?

0 K, or absolute zero, is theoretically the lowest possible temperature, but it cannot be reached exactly in practice due to quantum mechanical effects.

4. What is 100°C in Kelvin?

100°C + 273.15 = 373.15 K. This is the boiling point of water at standard atmospheric pressure.

5. Can I convert Kelvin back to Celsius?

Yes, simply subtract 273.15 from the Kelvin value. For example, 310 K - 273.15 = 36.85°C.

Did You Know?

The Kelvin scale was proposed by William Thomson (Lord Kelvin) in 1848. It is the only temperature scale that starts at absolute zero and is never negative at any point!
Unlike Celsius and Fahrenheit, Kelvin does not use the degree symbol (°) in its notation.