Celsius to Kelvin Converter

1 Celsius equals 274.15 Kelvin.

Result updates as you type
Recent: 1 Celsius = 274.15 Kelvin

Formula

To convert Celsius to Kelvin, add 273.15.

K = °C + 273.15

Worked examples

  • 1 Celsius = 274.15 Kelvin
  • 5 Celsius = 278.15 Kelvin
  • 10 Celsius = 283.15 Kelvin
  • 100 Celsius = 373.15 Kelvin

Celsius to Kelvin table

Celsius (°C) Kelvin (K)
1 274.15
2 275.15
3 276.15
4 277.15
5 278.15
10 283.15
25 298.15
50 323.15
100 373.15
250 523.15
500 773.15
1000 1273.15

About Celsius and Kelvin

Both the Celsius (°C) and the Kelvin (K) measure temperature. Because temperature scales have different zero points, converting between them requires both a scale factor and an offset rather than a single multiplication. Enter any value above to convert instantly, or use the formula and reference table below.

Unit definitions

Celsius (°C)
The Celsius (°C) is a unit of temperature. On the Celsius scale water freezes at 0° and boils at 100° at standard pressure.
Kelvin (K)
The Kelvin (K) is a unit of temperature. The Kelvin scale starts at absolute zero (0 K), the coldest possible temperature; water freezes at 273.15 K.

Frequently asked questions

How do you convert Celsius to Kelvin?
Temperature scales differ by both scale and offset, so you apply a formula rather than a single factor. For example, 1 Celsius equals 274.15 Kelvin. Enter a value in the converter above for an instant result.
How many Kelvin are in a Celsius?
There are 274.15 Kelvin in one Celsius.
What is 10 Celsius in Kelvin?
10 Celsius is equal to 283.15 Kelvin.
How do you convert Kelvin back to Celsius?
Apply the inverse temperature formula. One Kelvin equals -272.15 Celsius.