21 Celsius to Kelvin

How to convert celsius to kelvin

To get kelvin, multiply by 1, then add 273.15.

K = °C × 1 + 273.15

Worked example: 21 × 1 + 273.15 = 294.15 K.

Going the other way, multiply by 1, then subtract 273.15.

Values near 21 °C

Celsius to Kelvin — common values

Convert Celsius to other units

← Reverse: Kelvin to Celsius

Questions

How do you convert celsius to kelvin?

To convert celsius to kelvin, multiply by 1, then add 273.15. For example, 21 °C is 294.15 K.

How many kelvin are in a celsius?

Celsius and kelvin scales have different zero points, so there is no fixed "per unit" amount: 1 °C is 274.15 K, but 0 °C is 273.15 K.

How do you convert kelvin back to celsius?

Go the other way: multiply by 1, then subtract 273.15.