Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

Convert Celsius to Kelvin Instantly

ffImage
hightlight icon
highlight icon
highlight icon
share icon
copy icon
SearchIcon

How to Use the Celsius to Kelvin Converter for Accurate Results

Celsius to Kelvin Calculator



25°C = 298.15 K

Formula used: K = °C + 273.15

What is Celsius to Kelvin Calculator?

A Celsius to Kelvin Calculator is a fast online tool that helps you convert any temperature value from degrees Celsius (°C) to Kelvin (K). It is especially useful for students, teachers, and professionals who work with temperature scales in science or engineering.


Celsius is a common unit for measuring temperature, with water freezing at 0°C and boiling at 100°C. Kelvin, on the other hand, is the SI unit for thermodynamic temperature, starting at absolute zero. This calculator instantly provides you the Kelvin equivalent of any given Celsius value.


Formula or Logic Behind Celsius to Kelvin Calculator

The conversion from Celsius to Kelvin is simple and based on an internationally accepted formula:

K = °C + 273.15


This means you just add 273.15 to your Celsius temperature to get the Kelvin value. For example, 25°C + 273.15 = 298.15 K. This formula ensures that 0 K represents absolute zero, the coldest possible temperature.


Common Celsius to Kelvin Conversion Table

Celsius (°C) Kelvin (K) Description
-273.150Absolute zero
-40233.15
0273.15Water freezes
25298.15Room temperature
37310.15Human body temperature
70343.15
100373.15Water boils

Steps to Use the Celsius to Kelvin Calculator

  • Enter the required Celsius value in the input box
  • Click on the 'Calculate' button
  • Get instant results in Kelvin along with the formula and easy steps shown below

Why Use Vedantu’s Celsius to Kelvin Calculator?

Vedantu’s Celsius to Kelvin Calculator is easy to use, gives fast results, and is designed for students and science enthusiasts. Its mobile-friendly interface lets you quickly convert temperatures for homework, lab reports, or exam preparations.


Accuracy is guaranteed, and step-by-step logic is always explained for learning. Join millions who trust Vedantu for their academic conversion needs and explore related calculators like Celsius to Fahrenheit and Kelvin to Celsius.


Real-life Applications of Celsius to Kelvin Calculator

Converting Celsius to Kelvin is needed in many everyday and academic contexts. In school physics or chemistry labs, Kelvin values are required for gas law equations, thermal calculations and experiments involving heat transfer.


NEET, JEE, and Olympiad questions often use temperatures in Kelvin for problem-solving. Many engineers and researchers also use Kelvin in scientific work, weather reporting, and thermodynamics.


For more helpful tools, explore Inch to Centimeter Calculator, Meter to Feet Converter, and Temperature Conversions for comprehensive study support.


FAQs on Convert Celsius to Kelvin Instantly

1. How do you convert Celsius to Kelvin?

To convert a temperature from Celsius (°C) to Kelvin (K), you simply add 273.15 to the Celsius value. The formula is: K = °C + 273.15. This works because 0 Kelvin represents absolute zero, the theoretical point where all molecular motion ceases.

2. What is the formula for Celsius to Kelvin conversion?

The formula for converting Celsius to Kelvin is: K = °C + 273.15. Where K represents the temperature in Kelvin and °C represents the temperature in Celsius.

3. How do you convert 25 Celsius to Kelvin?

Using the formula K = °C + 273.15, we substitute 25 for °C: K = 25 + 273.15 = 298.15 K.

4. What is 1 Celsius in Kelvin?

One degree Celsius is equal to 274.15 Kelvin (1 + 273.15 = 274.15).

5. What is 100 Celsius in Kelvin?

100 degrees Celsius is equal to 373.15 Kelvin (100 + 273.15 = 373.15). This is the boiling point of water.

6. What is the difference between Celsius and Kelvin?

Celsius (°C) and Kelvin (K) are both temperature scales, but Kelvin is the absolute temperature scale. The main difference is that Kelvin starts at absolute zero (0 K), the lowest possible temperature, while Celsius uses the freezing and boiling points of water as reference points. To convert, you simply add 273.15 to the Celsius value.

7. Why do we add 273.15 to convert Celsius to Kelvin?

We add 273.15 because this value represents the difference between the zero points of the Celsius and Kelvin scales. 0 Kelvin is absolute zero, the theoretical point where all molecular motion stops. This corresponds to -273.15°C. Therefore, adding 273.15 ensures that the Kelvin value accurately reflects the absolute temperature.

8. How do I convert -40 degrees Celsius to Kelvin?

To convert -40°C to Kelvin, add 273.15: -40 + 273.15 = 233.15 K

9. What is 0 Celsius in Kelvin?

0 degrees Celsius is equal to 273.15 Kelvin (0 + 273.15 = 273.15). This is the freezing point of water.

10. Where is the Kelvin scale used?

The Kelvin scale is primarily used in scientific contexts, especially in physics and chemistry. It's essential for calculations involving gas laws, thermodynamics, and other scientific applications where absolute temperature is crucial. It's also used in many engineering fields.

11. What are some real-life applications of converting Celsius to Kelvin?

Celsius to Kelvin conversion is vital in various fields including:
  • Scientific research: Gas law calculations, thermodynamics
  • Engineering: Designing engines, materials science
  • Meteorology: Weather forecasting models
  • Medical applications: Cryogenics
Essentially, anywhere precise temperature measurements are needed, Kelvin is preferred.