rad

What is a Radian?

Angle Unit

Definition

A radian is a unit of angle where the arc length equals the radius. One full rotation is 2π radians.

Popular Radian Conversions

Most common conversions from Radians

1 rad = 57.2958 ° Radian to Degrees 1 rad = 63.662 gon Radian to Gradians 1 rad = 3,437.74 ' Radian to Arcminutes 1 rad = 206,264.64 " Radian to Arcseconds 1 rad = 0.159155 tr Radian to Turns

History

The radian was first described by Roger Cotes in 1714. It became the standard unit for angles in mathematics and physics.

Common Uses

Mathematics and calculus
Physics calculations
Engineering applications
Computer graphics

Fun Facts

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π radians equals 180 degrees

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1 radian is about 57.3 degrees

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Trigonometric functions often use radians

All Radian Conversions

Radians to Degrees rad → ° Radians to Gradians rad → gon Radians to Arcminutes rad → ' Radians to Arcseconds rad → " Radians to Turns rad → tr