# DC Motor Torque Calculator

## About DC Motor Torque Calculator (Formula)

A DC motor torque calculator is a tool used to calculate the torque of a DC motor based on its electrical and physical characteristics. The torque of a DC motor is the rotational force that it can generate and is an important parameter to consider when selecting a motor for a specific application.

The formula used to calculate the torque of a DC motor is:

T = (P * Z * O * I) / (2 * π * A)

Where T is the motor torque, P is the number of poles, Z is the number of conductors, O is the flux per pole, I is the armature current, and A is the number of parallel paths. This formula relates the electrical and physical characteristics of the motor to its torque output.

The number of poles and conductors are physical characteristics of the motor, while the flux per pole and armature current are electrical characteristics. The number of parallel paths represents the number of parallel paths that the current can flow through the armature windings. This value is typically equal to the number of brushes in the motor.

The formula demonstrates that the torque of a DC motor is directly proportional to the number of poles, conductors, flux per pole, and armature current. It is also inversely proportional to the number of parallel paths. Therefore, increasing any of the former parameters or decreasing the latter will increase the motor’s torque.

A DC motor torque calculator is a useful tool for motor designers, engineers, and technicians who need to determine the torque output of a motor for a specific application. By inputting the required motor parameters into the formula, the calculator can quickly and accurately calculate the motor’s torque output.