# Stall Torque Calculator, Formula, Stall Torque Calculation

## Stall Torque Calculator:

Enter the values of stall current, Is(A) and motor’s torque constant, K(N.m/A) to generate the value of stall torque, Ts(N.m).

 Enter Stall Current: A Result – Stall Torque: N.m

## Stall Torque Formula:

Stall torque is a critical parameter in the realm of electric motors and robotics, referring to the maximum torque a motor can generate when the output rotational speed is zero, i.e., when the motor is at a standstill. This measurement is crucial for evaluating a motor’s performance during start-up or when it encounters a load that prevents it from rotating.

The stall torque, Ts(N.m) in Newton metres, is calculated by multiplying the stall current, Is(A) in Amperes, by the motor’s torque constant, K(N.m/A) in Newton metres per Ampere.

Stall torque, Ts(N.m) = Is(A) * K(N.m/A)

Ts(N.m) = Stall torque in Newton metres, N.m.

Is(A) = stall current in Amperes, A.

K(N.m/A) = motor’s torque constant, K(N.m/A).

### Stall Torque Calculation:

1. Given a motor with a stall current of 5 Amperes and a torque constant of 0.1 Newton metres per Ampere, calculate the stall torque.

Given: Is(A) = 5A, K(N.m/A) = 0.1 N.m/A

Stall torque, Ts(N.m) = Is(A) * K(N.m/A)

Ts(N.m) = 5 * 0.1

Ts(N.m) =0.5N.m.

2. If a desired stall torque is 2 Newton metres and the motor’s torque constant is 0.2 Newton metres per Ampere, find the required stall current.

Given: Ts(N.m) = 2N.m, K(N.m/A) = 0.2 N.m/A

Stall torque, Ts(N.m) = Is(A) * K(N.m/A)

Is(A) = Ts(N.m) / K(N.m/A)

Is(A) = 2 / 0.2

Is(A) = 10A.