What is angular acceleration?

Angular acceleration (alpha) is the rate of change of angular velocity over time. It measures how quickly rotation is speeding up or slowing down. SI unit: radians per second squared (rad/s squared). Also expressed in degrees/s squared or RPM/s.

How do I convert rad/s squared to degrees/s squared?

Multiply rad/s squared by 180/pi = 57.296. Example: 1 rad/s squared = 57.296 deg/s squared. Reverse: multiply degrees/s squared by pi/180 = 0.01745.

What is the angular acceleration of a spinning hard drive?

A hard drive spinning up from 0 to 7,200 RPM in 3 seconds: first convert 7,200 RPM to rad/s = 7,200 x 2*pi/60 = 753.98 rad/s. Angular acceleration = 753.98/3 = 251.3 rad/s squared.

How is angular acceleration related to torque?

Newton's Second Law for rotation: torque = moment of inertia x angular acceleration (T = I * alpha). This is the rotational equivalent of F = ma. Larger torque produces greater angular acceleration; larger moment of inertia (more mass further from center) resists angular acceleration.

Angular Acceleration Converter

Convert between rad/s², deg/s², rev/s² and rev/min².

About Angular Acceleration

Angular acceleration describes how quickly an object's rotational speed changes. The SI unit is radian per second squared (rad/s²). It is widely used in robotics, automotive engineering, and physics.

Quick Reference Table

Unit	In rad/s²
1 deg/s²	0.017453 rad/s²
1 rev/s²	6.28318 rad/s²
1 rev/min²	0.001745 rad/s²

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Angular Acceleration Converter

About Angular Acceleration

Quick Reference Table

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