Degree per Day to Revolution per Hour Conversion

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

From Degree per Day

°/d

To Revolution per Hour

r/h

How to Convert Degree per Day to Revolution per Hour

Conversion Formula

1 °/d = 0 r/h

1 r/h = 8640 °/d

Example

Convert 15 °/d to r/h:

15 °/d = 15 × 0 r/h = 0.002 r/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

Revolution per Hour

r/h

Definition

The revolution per hour is a unit of angular velocity representing the number of complete rotations over a one-hour period. It is used for measuring moderate-speed rotational motions in mechanical systems and industrial applications.

History/Origin

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

Current Use

Revolution per hour is used in mechanical engineering for describing slow motor speeds, in industrial automation for describing equipment performance, and in manufacturing for monitoring rotational equipment performance over hourly intervals.

Multiplier

0.002

Offset