As we know One °R is equal to 0.4444444444 °Re (1 °R = 0.4444444444 °Re).

To convert Degree Rankine to Degree Reaumur, multiply your °R figure by 0.4444444444.

Example : convert 25 °R to °Re:

25 °R = 25 × 0.4444444444 °Re = °Re

To convert Degree Reaumur to Degree Rankine, divide your °Re figure by 0.4444444444.

Example : convert 25 °Re to °R:

25 °Re = 25 ÷ 0.4444444444 °R = °R