# How do you calculate motor power torque?

## How do you calculate motor power torque?

1. Torque (lb.in) = 63,025 x Power (HP) / Speed (RPM)
2. Power (HP) = Torque (lb.in) x Speed (RPM) / 63,025.
3. Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM)
4. Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488.

What is the relationship between motor power speed and torque?

speed, it helps to know the formula. The formula that’s used to determine the output of a motor including speed and torque is Power (P) = Speed (n) x Torque (M). The torque of an electric motor is generally calculated by inch-pounds (in-lbs), Newton-meters (N-m).

### What is motor power formula?

Power = (Force x Distance) / Time For electric motors, power or horsepower can be calculated from the torque and speed.

What is torque of motor?

Torque: The torque output of a motor is the amount of rotational force that the motor develops. The torque of a small electric motor is commonly measured in either inch pounds (in-lbs), Newton meters (N-m) or other directly converted units of measure.

#### What is motor power?

An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor’s magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor’s shaft.

How is rpm related to torque?

Mathematically, horsepower equals torque multiplied by rpm. H = T x rpm/5252, where H is horsepower, T is pound-feet, rpm is how fast the engine is spinning, and 5252 is a constant that makes the units jibe. So, to make more power an engine needs to generate more torque, operate at higher rpm, or both.

## What’s the power of a motor?

In an electric motor, the mechanical power is defined as the speed times the torque. Mechanical power is typically defined as kilowatts (kW) or horsepower (hp) with one watt equaling one joule per second or one Newton-Meter per second.

How is motor power measured?

By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.

### What is torque and power?

Power vs Torque Torque refers to the capacity to do work, while power is the rate of completing work in a given amount of time. The primary use of torque is to make the car accelerate in the initial stages of movement, while the horsepower determines the rate of the acceleration of the vehicle.

What is the relation between power and torque?

The relation between torque and power is directly proportional to each other. The power of a rotating object can be mathematically written as the scalar product of torque and angular velocity.

#### What is the equation to calculate torque?

Formula E racecars are limited to 335PS (250kW) but this twin motor, four-wheel drive beastie boasts a system output of 815PS, split between a 250kW motor up front and 350kW unit behind. DS says torque at the wheels hits 8000Nm. It should go well then but

What is the difference between speed and torque?

P is the power (work done per unit time)

• τ is the torque (rotational ability of a body)
• ω is the angular speed/velocity (rate of change of angular displacement)
• ## How to figure horsepower and torque?

– Where T is the torque (pound-feet) – HP is the horsepower – RPM is the rotations per minute

What does the motor speed torque curve tell you?

Stepper motor speed – torque curves show how much torque is available from a stepper motor at a given speed when combined with a particular driver. This means that depending on different motor and driver combinations, different performance can be expected from the stepper motor system.