Convert Degrees to Radians

Please provide values below to convert Degrees to Radians

Degrees
Radians

Degrees

Definition

A degree (symbol: °) is a unit of angular measure equal to 1/360 of a complete rotation.

History/Origin

The division of a circle into 360 degrees originated in ancient Babylonian astronomy, based on their sexagesimal (base-60) number system.

Current Use

Degrees are widely used for angular measurements in navigation, surveying, engineering, and everyday contexts. They're also used in geography for latitude and longitude.

Radians

Definition

A radian (symbol: rad) is the angle subtended at the center of a circle by an arc equal in length to the radius of the circle.

History/Origin

The concept of radian measure was first described by Roger Cotes in 1714. It became standardized as the SI unit for angular measurement.

Current Use

Radians are primarily used in mathematics, physics, and engineering calculations. They are preferred over degrees in many mathematical applications.