Convert Degrees Celsius to kelvin
1 degree Celsius = 274.15 kelvin · K = °C + 273.15
When you need this conversion
Kelvin is the SI base unit for temperature and starts at absolute zero, so it is what physics and chemistry coursework requires — gas law calculations break if you use Celsius. Kelvin also describes the color temperature of light bulbs, where 2700 K reads as warm white and 6500 K as daylight.
Degrees Celsius to kelvin conversion table
| Degrees Celsius (°C) | Kelvin (K) |
|---|---|
| -40 °C | 233.15 K |
| -20 °C | 253.15 K |
| -10 °C | 263.15 K |
| 0 °C | 273.15 K |
| 10 °C | 283.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 37 °C | 310.15 K |
| 50 °C | 323.15 K |
| 75 °C | 348.15 K |
| 100 °C | 373.15 K |
| 150 °C | 423.15 K |
| 200 °C | 473.15 K |
The formula
K = °C + 273.15Temperature scales do not share a common zero point, so converting degrees Celsius to kelvin requires both a scaling step and an offset rather than a single multiplication.
Convert the other way
Kelvin to degrees Celsius →Related temperature conversions
- Degrees Celsius to degrees Fahrenheit
- Degrees Celsius to degrees Rankine
- Degrees Fahrenheit to degrees Celsius
- Degrees Rankine to degrees Celsius
- Degrees Fahrenheit to kelvin
- Degrees Rankine to kelvin
- Degrees Fahrenheit to degrees Rankine
- Kelvin to degrees Fahrenheit
- Kelvin to degrees Rankine
- Degrees Rankine to degrees Fahrenheit
Frequently asked questions
- How many kelvin are in a degree Celsius?
- There are 274.15 kelvin in 1 degree Celsius. The formula is K = °C + 273.15.
- How do you convert degrees Celsius to kelvin?
- Use the formula K = °C + 273.15. For example, 10 degrees Celsius equals 283.15 kelvin.
- Is the degrees Celsius to kelvin conversion exact?
- Yes. The degrees Celsius to kelvin conversion is defined exactly by the temperature scales, so there is no rounding in the underlying relationship. Displayed results are rounded for readability.
- What is °C short for?
- °C is the standard symbol for degree Celsius (also written as centigrade). K is the symbol for kelvin.