Created By : Vaibhavi Kumari

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 17, 2023

With the help of our free Online Work and Power Calculator, students may quickly calculate the power of a specific gadget. To check the power in a short amount of time, simply enter the work done by an object and the time it took to complete it in the calculator's input sections, then press the calculate button.


Work - Definition

In physics, the quantity of energy required to move an object a specific distance is referred to as work. It could be the energy expended lifting big bags up the stairs or the kinetic energy expended when the body moves.

Force multiplied by the distance an object goes is how it's usually computed. Between these two quantities, it's a dot product. It is expressed in joules (J) or kilowatt-hours (kWh).

Power - Definition

The rate of change of work, or the amount of work completed in a given amount of time, is referred to as power. The higher a device's power, the more work it can do in a given amount of time. It is expressed in units Watts(W), which is equivalent to SI unit of kg·m²/s³.

Power and Work Formulas

The formulas for calculating power and work are given below

Work W = force x displacement

Power P = W/T

  • Where,
  • W = work done
  • T = time
  • P = power

How to use the Work and Power Calculator?

  • Step 1: Determine the value of your work. You can either type this value into our calculator directly or use the advanced option to calculate it using force and displacement.
  • Step 2: Choose a time when the work will be completed.
  • Step 3: Work divided by time equals power.

You may also use our power calculator to look for work; simply enter the power and time values. Find similar concepts related to physics all under one roof at and resolve all your doubts as a part of your homework or assignment.

FAQs on Work and Power Calculator

1. What units are used to calculate work and power?

The joule (J) is a unit of work that is equal to kgm2/s2 in SI units. The kWh is another standard unit of work.

The watt (W) is a unit of power that measures the number of joules of work done per second.

2. How many joules are in a kilojoule?

A kJ is equal to 1,000 joules (kilojoule). When the letter k appears in front of a unit, it signifies the unit has been multiplied by 1,000.

3. What is the formula for calculating work energy and power?

Multiplying the force with the displacement. The product of force and velocity, or the divide of work and time, is power.

4. How to calculate power?

The steps to calculating an object's mechanical power are basic and straightforward. Follow these procedures to achieve your desired outcome.

  1. Take the values from the question for the task and the time it takes to complete it.
  2. Divide the work by the time you've spent working on it.
  3. Power is the end outcome.

5. One horsepower equals how many joules?

735.5 watts, or joules per second, equals one horsepower. So, if you labor at one horsepower for one second, you'll get 735.5 joules. To find the total energy in joules, multiply the work duration in seconds by the total energy in joules.