How many radian in 1 degree?
The answer is 0.0174532925199.
We assume you are converting between radian and degree.
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radian or degree
The SI derived unit for angle is the radian.
1 radian is equal to 57.2957795131 degree.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between radians and degrees.
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In mathematics and physics, the radian is a unit of angle measure. It is the SI derived unit of angle. It is defined as the angle subtended at the center of a circle by an arc of circumference equal in length to the radius of the circle. Angle measures in radians are often given without any explicit unit. When a unit is given, sometimes the abbreviation rad is used, sometimes the symbol c (for "circular").
A degree (or in full degree of arc), usually symbolized by the symbol °, is a measurement of plane angles, or of a location along a great circle of a sphere (such as the Earth or the celestial sphere), representing 1/360 of a full rotation.
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