Celsius to Kelvin
Convert Celsius to Kelvin instantly. K = °C + 273.15
Result
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Open °C → K page
Quick answers
- -18 °C = 255.15 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
Celsius to Kelvin conversion table
| Celsius (°C) | Kelvin (K) |
|---|---|
| -40 °C | 233.15 K |
| -18 °C | 255.15 K |
| -10 °C | 263.15 K |
| 0 °C | 273.15 K |
| 5 °C | 278.15 K |
| 10 °C | 283.15 K |
| 15 °C | 288.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 35 °C | 308.15 K |
| 36 °C | 309.15 K |
| Celsius (°C) | Kelvin (K) |
|---|---|
| 37 °C | 310.15 K |
| 38 °C | 311.15 K |
| 39 °C | 312.15 K |
| 40 °C | 313.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
| 150 °C | 423.15 K |
| 180 °C | 453.15 K |
| 200 °C | 473.15 K |
| 220 °C | 493.15 K |
| 250 °C | 523.15 K |
Fixed points
- Absolute zero-273.15 °C equals 0 K
- Water freezes0 °C equals 273.15 K
- Room temperature20 °C equals 293.15 K
- Body temperature (about)37 °C equals 310.15 K
- Water boils at sea level100 °C equals 373.15 K
Conversion formula
K = °C + 273.15
Example: 20 °C = 293.15 K
On the Celsius scale water freezes at 0 °C and boils at 100 °C at sea level. The kelvin is the SI unit of temperature; 0 K is absolute zero, −273.15 °C.
You may also see this conversion written as “C to kelvin”.
Questions
How do you convert Celsius to Kelvin?
Use K = °C + 273.15. It is not a single multiplication, because the two scales have different zero points.
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