Angular Acceleration Calculator

To calculate angular acceleration, input the values of torque and moment of inertia in the angular acceleration calculator.

Angular Acceleration = Total torqueMass moment of inertia


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This angular acceleration calculator helps to find the acceleration of a rotating body if the moment of inertia and total torque are given.

What is Angular Acceleration? 

According to Wikipedia:

“Angular acceleration refers to the time rate of change of angular velocity.”

In simple words,

“It is the rotation of a rigid body about a fixed center point.” 

Angular acceleration formula

The equation used for the calculation of angular acceleration is:

α = T/I


α represents angular acceleration,

T represents torque, and

I is moment of inertia.

The formula used in this calculator is related to tangential acceleration as:

αt = αr

Where, αt is tangential acceleration.

How to find angular acceleration?


Calculate angular acceleration if the body rotates at 30 radians per second and the moment of inertia is 10 kgm2.


Step 1: Identify the values.

T = 30 rad s-1

I = 10 kgm2

Step 2: Put the values into the formula.

α = T/I

α = 30/10

α = 3 rad s-2