Science
Celsius to Kelvin Converter
Convert Celsius to Kelvin for school, lab notes and quick science checks.
Last updated: April 2026
Enter a value to see the conversion instantly.
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Why this conversion matters
Kelvin shows absolute temperature, so it appears in physics, chemistry and engineering much more often than general consumer tasks.
This page keeps the conversion direct and adds enough context to stop small mistakes in reports or homework.
Typical use cases
- physics and chemistry homework
- lab note checks
- sensor data comparisons
- engineering references
Quick reference
| °C | K |
|---|---|
| 0 | 273.15 |
| 25 | 298.15 |
| 100 | 373.15 |
| -40 | 233.15 |
Use the quick answer, then stay in one unit system for the rest of the job. That avoids easy mistakes.