Right Angle to Radian Conversion

Convert between Right Angle and Radian quickly and accurately.

From Right Angle

right angle

To Radian

rad

How to Convert Right Angle to Radian

Conversion Formula

1 right angle = 1.571 rad

1 rad = 0.637 right angle

Example

Convert 15 right angle to rad:

15 right angle = 15 × 1.571 rad = 23.562 rad

Unit Information

Learn about the angle units you're converting between

Right Angle

right angle

Definition

Right angle is a unit of angle measurement equal to 90 degrees or one-quarter of a full circle. It represents the angle formed by two perpendicular lines.

History/Origin

The right angle has been a fundamental concept in geometry since ancient times, representing perpendicularity.

Current Use

Right angles are used in geometry, construction, engineering, and architectural design.

Multiplier

Offset

Radian

rad

Definition

Radian is the SI unit for measuring angles, defined as the angle subtended by an arc equal in length to the radius of the circle. One radian equals approximately 57.2958 degrees.

History/Origin

The radian was introduced by James Thomson in 1873. It became the standard unit for angular measurement in the International System of Units (SI) due to its mathematical elegance.

Current Use

Radians are used in mathematics, physics, engineering, computer graphics, and scientific calculations where precise angular measurements are required.

Multiplier

57.296

Offset