Convert Celsius to Kelvin (°C to K)
Convert celsius to kelvin instantly. Formula: K = °C + 273.15. Free celsius-to-kelvin converter with table and formula.
Convert degrees Celsius to kelvins instantly with this free online converter. The conversion uses the formula K = °C + 273.15. Type any value and the converted result appears immediately — no signup, and everything runs privately in your browser.
The Celsius scale sets 0° at the freezing point of water and 100° at its boiling point at sea level. Kelvin is the SI unit of thermodynamic temperature; 0 K is absolute zero, equal to −273.15°C. This conversion is used constantly for temperature readings in weather, cooking, science, and medicine. It bridges the metric system and SI units, which is why this conversion comes up so often.
133.8274.15Conversion formula
K = °C + 273.15Conversion table
| Value | Converted |
|---|---|
| -40 °C | 233.15 K |
| 0 °C | 273.15 K |
| 10 °C | 283.15 K |
| 20 °C | 293.15 K |
| 37 °C | 310.15 K |
| 100 °C | 373.15 K |
| 212 °C | 485.15 K |
Frequently Asked Questions
What is 20°C in K?
20°C equals 293.15K. Apply the formula K = °C + 273.15.
How do you convert degrees Celsius to kelvins?
Use the formula K = °C + 273.15. For example, 20°C works out to 293.15K.
At what point are degrees Celsius and kelvins equal?
The scales differ by a fixed offset, so they never read the same value (Kelvin is Celsius shifted by 273.15).
Is this celsius to kelvin converter free and private?
Yes. It is completely free, requires no signup, and the conversion happens entirely in your browser — no values are sent to any server.
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