Instant conversion
Celsius To Kelvin Converter
Kelvin = celsius + 273.15. Add 273.15 to the celsius value.
Common C to K conversions
| C | K |
|---|---|
| 0 | 273.15 |
| 10 | 283.15 |
| 20 | 293.15 |
| 30 | 303.15 |
| 40 | 313.15 |
| 50 | 323.15 |
| 60 | 333.15 |
| 70 | 343.15 |
| 80 | 353.15 |
| 90 | 363.15 |
| 100 | 373.15 |
| 200 | 473.15 |
How this conversion works
Kelvin = celsius + 273.15. Add 273.15 to the celsius value.
Privacy: Conversions run in this browser. Nothing you type is uploaded.
What you are converting
Celsius
Celsius sets 0 at water's freezing point and 100 at boiling. Real-world anchor: room temperature is about 22 C.
Kelvin
Kelvin is the SI temperature scale starting at absolute zero. Real-world anchor: room temperature is about 295 K.
Why convert and when you would use this
Reverse science conversion for lab work and engineering.
Rounding and accuracy
Use 2-4 decimal places for everyday tasks; keep more for engineering or lab precision.
Frequently asked questions
How do you convert C to K?
Kelvin = celsius + 273.15. Add 273.15 to the celsius value.
What is the formula for C to K?
Kelvin = celsius + 273.15. Add 273.15 to the celsius value.
Why is this conversion not a simple multiplication?
Kelvin and Celsius share the same degree size but shift by 273.15, so the conversion adds or subtracts a constant.