Convert Celsius to Kelvin instantly. Free °C to K converter with quick reference table and formula. Kelvin = Celsius + 273.15. Used in physics and chemistry.
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Celsius to Kelvin Converter, Converters, Convert Celsius to Kelvin instantly. Free °C to K converter with quick reference table and formula. Kelvin = Celsius + 273.15. Used in physics and chemistry., convert, conversion, unit, convert, unit, measurement
Celsius to Kelvin Converter
Convert Celsius to Kelvin instantly. Free °C to K converter with quick reference table and formula. Kelvin = Celsius + 273.15. Used in physics and chemistry.
Converters global
Celsius to Kelvin Converter, Converters, Convert Celsius to Kelvin instantly. Free °C to K converter with quick reference table and formula. Kelvin = Celsius + 273.15. Used in physics and chemistry., convert, conversion, unit, convert, unit, measurement
Celsius to Kelvin Converter
Convert Celsius to Kelvin instantly. Free °C to K converter with quick reference table and formula. Kelvin = Celsius + 273.15. Used in physics and chemistry.
273.15
Kelvin (K)
Input Value
0°C (Celsius)
Kelvin is the SI unit of temperature. Absolute zero (0K) is the lowest possible temperature.
How to Convert Celsius to Kelvin
Simple formula with a worked example
To convert Celsius (°C) to Kelvin (K), use this formula:
K = °C + 273.15
Example: Convert 25 °C to K
25 °C = 298.15 K
To convert back, use: °C = K − 273.15
Celsius to Kelvin Conversion Table
Quick reference for common Celsius to Kelvin conversions
Celsius (°C)
Kelvin (K)
-40 °C
233.15 K
-20 °C
253.15 K
0 °C
273.15 K
10 °C
283.15 K
20 °C
293.15 K
25 °C
298.15 K
37 °C
310.15 K
50 °C
323.15 K
100 °C
373.15 K
200 °C
473.15 K
About Celsius and Kelvin
Understanding these temperature scales
Celsius (°C)
Celsius is the most widely used temperature scale. Water freezes at 0°C and boils at 100°C at sea level.
Kelvin (K)
Kelvin is the SI unit of temperature. Absolute zero (0K) is the lowest possible temperature.
When You Need This Conversion
physics calculations
chemistry lab work
scientific research
engineering thermodynamics
Did you know? The Kelvin scale starts at absolute zero (−273.15°C), the coldest possible temperature where all molecular motion ceases. It's the SI unit of temperature.
Frequently Asked Questions
Common questions about converting Celsius to Kelvin
25 Celsius (°C) equals 298.15 Kelvin (K). To convert, use the formula: K = °C + 273.15.
The formula is: K = °C + 273.15. For example, 25 °C = 298.15 K. To convert back: °C = K − 273.15.
25 Celsius = 298.15 Kelvin. Using the formula K = °C + 273.15: 25 °C = 298.15 K.
0 Kelvin (K) equals -273.15 Celsius (°C). This is the reverse conversion: °C = K − 273.15.
Temperature conversions use precise formulas. The formula K = °C + 273.15 provides exact results. This calculator uses the internationally recognized conversion formulas for accuracy.
Common use cases include physics calculations, chemistry lab work, scientific research, engineering thermodynamics. This conversion is frequently needed when working with temperatures across different measurement systems.
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