As we know One °Re is equal to 1.25 K (1 °Re = 1.25 K).

To convert Degree Reaumur to Kelvin, multiply your °Re figure by 1.25.

Example : convert 25 °Re to K:

25 °Re = 25 × 1.25 K = K

To convert Kelvin to Degree Reaumur, divide your K figure by 1.25.

Example : convert 25 K to °Re:

25 K = 25 ÷ 1.25 °Re = °Re