Celsius to Kelvin Converter
Convert any temperature from Celsius (°C) to Kelvin (K). Uses the formula K = °C + 273.15.
Formula
K = °C + 273.15
How to Convert Celsius to Kelvin
Add 273.15 to the temperature in Celsius to get the equivalent in Kelvin. The Kelvin scale starts at absolute zero (−273.15°C).
Example: Convert 25°C to Kelvin
K = 25 + 273.15 = 298.15 K
K = 25 + 273.15 = 298.15 K
Conversion Table
| °C | K |
|---|---|
| -273.15°C | 0 K |
| -40°C | 233.15 K |
| 0°C | 273.15 K |
| 20°C | 293.15 K |
| 25°C | 298.15 K |
| 37°C | 310.15 K |
| 100°C | 373.15 K |
| 200°C | 473.15 K |
Key Reference Points
- Absolute zero: −273.15°C = 0 K
- Water freezes: 0°C = 273.15 K
- Water boils: 100°C = 373.15 K
- Room temperature: ~20°C = 293.15 K
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Last updated: 2025