Kelvin to Celsius Calculator

Kelvin to Fahrenheit
Fahrenheit to Celsius
Celsius to Kelvin
Fahrenheit to Kelvin
Celsius to Fahrenheit

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

What is Kelvin to Celsius Calculator?

A Kelvin to Celsius Calculator is an online temperature conversion that quickly converts temperatures from Kelvin (K) to Celsius (°C) using the formula: °C = K - 273.15. It is commonly used by students, scientists, and engineers to interpret scientific data in a more familiar temperature scale. This converter is accurate, user-friendly, and ideal for physics, chemistry, and everyday use.

🔁 How to Convert Kelvin to Celsius

Formula: Celsius (°C) = Kelvin (K) - 273.15

Example: 300 K → 300 - 273.15 = 26.85°C

Features of the Kelvin to Celsius Calculator

  • Instant Conversion – Get results in real-time.
  • Precise Results – Accurate up to two decimals.
  • Science-Ready – Built for labs and academics.
  • Responsive Design – Use on mobile, tablet, or desktop.

🧠 Why Use Kelvin?

The Kelvin scale is the SI unit of temperature, commonly used in physics and chemistry. It starts from absolute zero (0 K), where atomic movement stops. Unlike Celsius, Kelvin values never go negative.

Kelvin (K) Celsius (°C)
0 K-273.15°C
273.15 K0°C
373.15 K100°C

Common Use Cases

Astrophysics & Space Science
Chemistry Lab Reports
Physics & Thermodynamics
Student Projects
Scientific Publications

🛠️ How to Use the Calculator

  1. Enter the temperature in Kelvin.
  2. Click or tab out – Celsius value appears instantly.
  3. Use the result for reports, projects, or experiments.

FAQ on Kelvin to Celsius Calculator

1. How do I convert Kelvin to Celsius?

To convert Kelvin to Celsius, simply subtract 273.15 from the Kelvin value.
Formula: Celsius = Kelvin - 273.15.
For example, 300 K is 26.85°C.

2. What is 0 Kelvin in Celsius?

Zero Kelvin is equal to -273.15°C and is known as absolute zero — the lowest possible temperature where all atomic motion stops.

3. Why do we subtract 273.15 when converting Kelvin to Celsius?

Kelvin and Celsius scales are offset by 273.15 degrees. While Celsius starts at the freezing point of water (0°C), the Kelvin scale starts from absolute zero. So, you subtract 273.15 to get the Celsius equivalent.

Did You Know?

Did you know that 0 Kelvin is called absolute zero, the coldest temperature theoretically possible? At this point, all molecular motion stops completely.

Did you know that the Kelvin scale is used in space science because it starts at absolute zero, making it ideal for extreme environments?