Degree per Day to Radian per Hour Conversion

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

From Degree per Day

°/d

To Radian per Hour

rad/h

How to Convert Degree per Day to Radian per Hour

Conversion Formula

1 °/d = 0.001 rad/h

1 rad/h = 1375.099 °/d

Example

Convert 15 °/d to rad/h:

15 °/d = 15 × 0.001 rad/h = 0.011 rad/h

Unit Information

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

Degree per Day

°/d

Definition

The degree per day is a unit of angular velocity representing the rate of angular displacement in degrees over a 24-hour period. It is commonly used for measuring very slow rotational motions in astronomical and geological applications.

History/Origin

Degree per day was developed for astronomical observations where angular measurements are traditionally expressed in degrees. It provides a practical unit for describing the Earth's rotation, planetary movements, and other celestial phenomena using familiar degree measurements.

Current Use

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

Multiplier

2E-7

Offset

Radian per Hour

rad/h

Definition

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

History/Origin

Radian per hour was established as an intermediate unit between radian per second and radian per day for measuring angular velocities in mechanical and astronomical applications. It provides a convenient scale for describing rotational speeds in various engineering contexts.

Current Use

Radian 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