As we know One r/d is equal to 0.0000727221 rad/s (1 r/d = 0.0000727221 rad/s).

To convert Revolution/day to Radian/second, multiply your r/d figure by 0.0000727221.

Example : convert 25 r/d to rad/s:

25 r/d = 25 × 0.0000727221 rad/s = rad/s

To convert Radian/second to Revolution/day, divide your rad/s figure by 0.0000727221.

Example : convert 25 rad/s to r/d:

25 rad/s = 25 ÷ 0.0000727221 r/d = r/d