Degree per Hour to Radian per Day Conversion

Convert between Degree per Hour and Radian per Day quickly and accurately.

From Degree per Hour

°/h

To Radian per Day

rad/d

How to Convert Degree per Hour to Radian per Day

Conversion Formula

1 °/h = 0.419 rad/d

1 rad/d = 2.387 °/h

Example

Convert 15 °/h to rad/d:

15 °/h = 15 × 0.419 rad/d = 6.283 rad/d

Unit Information

Learn about the velocity - angular units you're converting between

Degree per Hour

°/h

Definition

The degree per hour is a unit of angular velocity representing the rate of angular displacement in degrees over a one-hour period. It is used for measuring moderate-speed rotational motions in mechanical and astronomical applications.

History/Origin

Degree per hour was established as an intermediate unit between degree per second and degree per day for measuring angular velocities in various applications. It provides a convenient scale for describing rotational speeds using familiar degree measurements.

Current Use

Degree per hour is used in mechanical engineering for describing slow motor speeds, in astronomy for tracking celestial object movements, and in industrial applications for monitoring rotational equipment performance over hourly intervals.

Multiplier

Offset

Radian per Day

rad/d

Definition

The radian per day is a unit of angular velocity representing the rate of angular displacement over a 24-hour period. It is commonly used for very slow rotational motions such as astronomical phenomena, geological processes, and long-term mechanical systems.

History/Origin

Radian per day was developed for measuring extremely slow angular velocities in astronomical observations and geological studies. It provides a practical unit for describing the Earth's rotation, planetary movements, and other celestial phenomena that occur over extended time periods.

Current Use

Radian per day is primarily used in astronomy for describing planetary rotation rates, in geology for measuring tectonic plate movements, and in environmental monitoring for tracking slow changes in natural systems over extended periods.

Multiplier

Offset