Convert Hour Angles to Radians

Enter a value in hour angles to convert it to radians. The result updates instantly and includes the formula and calculation steps.

Hour Angles to Radians calculator

to
hour angle
Radians
rad

Hour Angles to Radians formula

Use this formula to convert hour angles to radians:

Radians = Hour Angles * π / 12

Calculation

Enter a valid number above to see the formula with your value substituted step by step.

Hour Angles to Radians Conversion Table

Reference values for converting Hour Angles to Radians.

Hour Angles (hour angle)Radians (rad)
0 hour angle0 rad
1 hour angle0.2618 rad
10 hour angle2.618 rad
45 hour angle11.781 rad
90 hour angle23.5619 rad
180 hour angle47.1239 rad
360 hour angle94.2478 rad
1000 hour angle261.7994 rad

Worked example

Convert 6 Hour Angles to Radians

Radians = 6 × π / 12 = 1.5708 Radians

About these units

Hour Angles

Hour angles are a unit of angular measurement used in astronomy to describe the position of celestial objects relative to an observer's local meridian. One hour angle corresponds to 15 degrees, reflecting the Earth's rotation rate of 15 degrees per hour. Hour angles are crucial in celestial navigation and the tracking of astronomical objects.

Radians

Radians are a fundamental unit of angular measurement in the International System of Units (SI). One radian is the angle subtended at the center of a circle by an arc whose length is equal to the radius of the circle. Radians are essential in mathematics and physics, particularly in calculus and trigonometry, where they simplify equations and allow for the natural expression of rotational and periodic phenomena.