Work, Power & Energy Calculator - Mechanics Physics Solver

Work, Power & Energy Calculator

Calculate Work Done ($W = F \cdot d$), Mechanical Power ($P = W \div t$), and Energy.

Select Calculation Mode: Calculate Work Done ($W = F \cdot d \cdot \cos\theta$) Calculate Power ($P = W \div t$)

Force ($F$ in Newtons):

Distance ($d$ in meters):

Angle ($\theta$ in degrees):

Time ($t$ in seconds):

Calculated Work Done

0.00 J

In Kilojoules (kJ)

0.00 kJ

In Horsepower (hp)

0.00 hp

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Work, Power and Energy Calculator: Mechanics Formulas Explained

In classical mechanics, understanding the relationship between Work, Power, and Energy is essential for solving physics problems and engineering tasks. Whether you are lifting a heavy object or calculating engine output, these core principles dictate physical performance.

Our free online Work, Power & Energy Calculator helps students, teachers, and professionals compute work done in Joules and mechanical power in Watts instantly.

Core Formulas and Definitions

1. Work Done Formula:
$$\mathbf{W = F \cdot d \cdot \cos(\theta)}$$
Where $F$ is Force ($\text{N}$), $d$ is displacement ($\text{m}$), and $\theta$ is the angle of applied force.

2. Power Formula:
$$\mathbf{P = \frac{W}{t}}$$
Where $W$ is Work Done ($\text{J}$) and $t$ is time ($\text{s}$).

Frequently Asked Questions (FAQs)

What is the difference between Work and Power?

Work measures the total energy transferred when a force moves an object over a distance, whereas power measures how fast that work is done over a specific period of time.

How is horsepower related to Watts?

One mechanical horsepower ($hp$) is approximately equal to $745.7\text{ Watts}$. This unit is commonly used to measure engine and motor power outputs.