In 1 revolution / hour [rev / hr] there is 3E-07 revolution / millisecond.

cycle / hour cycle / millisecond cycle / minute cycle / second degree / hour [° / hr] degree / millisecond degree / minute [° / min] degree / second [° / s] radian / hour [rad / hr] radian / millisecond radian / minute [rad / min] radian / second [rad / s] revolution / hour [rev / hr] revolution / millisecond revolution / minute [rev / min] revolution / second [rev / s]

cycle / hour cycle / millisecond cycle / minute cycle / second degree / hour [° / hr] degree / millisecond degree / minute [° / min] degree / second [° / s] radian / hour [rad / hr] radian / millisecond radian / minute [rad / min] radian / second [rad / s] revolution / hour [rev / hr] revolution / millisecond revolution / minute [rev / min] revolution / second [rev / s]