Celsius to Kelvin Converter

°C
K
value + 273.15
Batch Convert

How to Convert Celsius to Kelvin

To convert celsius to kelvin, use the following formula:

value + 273.15

Example: 20 °C = 293.15 K

Visual Comparison

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Celsius
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Celsius to Kelvin Table

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Celsius (°C) Kelvin (K)
-40 233.15
-20 253.15
0 273.15
10 283.15
20 293.15
25 298.15
30 303.15
37 310.15
100 373.15

About Celsius to Kelvin

Converting Celsius (°C) to Kelvin (K) is a fundamental skill in science and engineering. The Kelvin scale is the absolute temperature unit used across physics, chemistry, and thermodynamics, while Celsius remains the everyday temperature standard in most countries. This conversion matters in laboratories, industrial processes, weather forecasting, and any field where precise temperature measurement affects outcomes.

Practical Use & Examples

The formula for converting Celsius to Kelvin is straightforward: add 273.15 to the Celsius value. Water freezes at 0°C, which equals 273.15 K—a conversion scientists use constantly in labs. Room temperature around 20°C converts to 293.15 K, a baseline for many experiments. In industrial settings, engineers converting boiling water at 100°C to 373.15 K ensures precise process control. Cryogenic applications require exact conversions; liquid nitrogen at −196°C becomes 77.15 K. Weather data and climate research depend on accurate Kelvin conversions for atmospheric modeling. Even in cooking science, understanding that 180°C (oven temperature) equals 453.15 K helps food technologists standardize recipes. The Kelvin scale eliminates negative numbers, making it ideal for calculations involving gas laws and energy equations where absolute values matter.

Origin of Celsius and Kelvin

Anders Celsius created the Celsius scale in 1742 as a decimal-based temperature measurement system. William Thomson, later known as Lord Kelvin, developed the Kelvin scale in 1848 as an absolute temperature scale starting at absolute zero (−273.15°C), providing a physically meaningful reference point for thermodynamic calculations and scientific research.

Frequently Asked Questions

1 How many kelvin are in 1 celsiu?
Use the converter above to find the exact value.
2 What is the formula to convert °C to K?
The conversion uses a specialized formula. Enter any value in the converter above.
3 How do I convert 20 °C to K?
20 °C is equal to 293.15 K.
4 How many kelvin is -40 °C?
-40 °C is equal to 233.15 K.
5 How many kelvin is -20 °C?
-20 °C is equal to 253.15 K.
6 How many kelvin is 0 °C?
0 °C is equal to 273.15 K.
7 How many kelvin is 10 °C?
10 °C is equal to 283.15 K.
8 What is the difference between Celsius and Kelvin?
Celsius (°C) and Kelvin (K) are both units of measurement used for the same physical quantity, but they differ in scale and origin. Use the converter above to move quickly between celsius and kelvin.