Celsius to Kelvin Converter
Free Temperature Converter, Convert Celsius, Fahrenheit & Kelvin with Formulas
1Celsius=274.15Kelvin
1 Kelvin = -272.15 Celsius
Celsius
- Symbol
- °C
- System
- Metric/Imperial
- Dimension
- Various
Kelvin
- Symbol
- K
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Celsius | Kelvin | Kelvin | Celsius |
|---|---|---|---|
| 1 | 274.15 | 1 | -272.15 |
| 2 | 275.15 | 2 | -271.15 |
| 3 | 276.15 | 3 | -270.15 |
| 5 | 278.15 | 5 | -268.15 |
| 10 | 283.15 | 10 | -263.15 |
| 25 | 298.15 | 25 | -248.15 |
| 50 | 323.15 | 50 | -223.15 |
| 100 | 373.15 | 100 | -173.15 |
| 500 | 773.15 | 500 | 226.85 |
| 1000 | 1273.15 | 1000 | 726.85 |
Conversion Formula
Kelvin = Celsius × 274.15
Celsius = Kelvin × -272.15
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ 274.15.
How to convert Celsius to Kelvin
Multiply the value in celsius by 274.15 to get kelvin. For example, 5 Celsius = 278.15 Kelvin. All results in the temperature converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to 274. too early — keep full precision until the final display. For temperature, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Kelvin in 1 Celsius?
- 1 Celsius = 274.15 Kelvin.
- How many Celsius in 1 Kelvin?
- 1 Kelvin = -272.15 Celsius.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
Embed this converter on your site
Free, responsive, no sign-up required. Just paste a snippet.
Get Embed Code