About the Work and Power Calculator
What is the Work and Power Calculator?
In physics, work is done when a force moves something. This work and power calculator uses the part of the force that points along the motion, then divides by time to get power.
A force at an angle does less work; a force at 90° to the motion does none.
How to use the Work and Power Calculator
- Force (N) (sample: 100)
- Distance Moved (m) (sample: 10)
- Angle between Force and Motion (°) (sample: 0)
- Time Taken (s) (sample: 10)
- Press Calculate Work & Power (results also refresh as you type). The result card shows the Work Done, along with Power, Power in horsepower and Force component along the motion.
Formula used
W = F × d × cos θ; P = W ÷ t
- θ = angle between the force and the direction of motion
- 1 hp = 745.7 W
Work and energy are both measured in joules (J); power in watts (W = J/s).
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Force (N) | 100 |
| Distance Moved (m) | 10 |
| Angle between Force and Motion (°) | 0 |
| Time Taken (s) | 10 |
| Result | Value |
|---|---|
| Work Done | 1,000 J |
| Power | 100 W |
| Power in horsepower | 0.1341 hp |
| Force component along the motion | 100 N |
Tips for using the Work and Power Calculator
- Carrying a load horizontally at constant height does no work on it in the physics sense.
- Power tells you how fast work is done – the same work in half the time needs double the power.