Radians

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The radian is the SI derived unit of angle and can be expressed as

α = d / r        (1)

where

α = radian

d = circular distance measured along the arc to the radius r

r = radius in circle

There are 2 π (pi) radians (about 6.283185) in a complete circle.

• 1 rad = 360^o / 2 π =~ 57.29578^o         (2)

The radian 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.

Radians to Degrees Converter

• Degrees - decimal to minutes and seconds converter

Converting angular velocity to other units

• 1 rad/s = 9.55 r/min (rpm) = 0.159 r/s (rps)         (3)

RPM to Radians and Degrees per Second Converter

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