Case 1
- Load force (output)
- 500N
- Effort force (input)
- 100N
5.000
Open with these valuesMechanical Advantage Calculator
5.000
Result: 5.000Divide the load force by the effort force. Above 1 the machine multiplies your push — a crowbar, a block and tackle, a ramp. Exactly 1 only changes direction. Below 1 you trade force for distance or speed, like a bicycle gear. Use the same force unit on both sides; the answer is a plain ratio.
Worked examples
Case 2
- Load force (output)
- 1000N
- Effort force (input)
- 250N
4.000
Open with these valuesCase 3
- Load force (output)
- 50N
- Effort force (input)
- 200N
0.250
Open with these valuesHow it's calculated
MA = load force ÷ effort force
- StepMeasure the load the machine moves, in newtons or any force unit.
- StepMeasure the effort you apply, in the same unit.
- ResultDivide the load by the effort — the units cancel.
Reference table
| Load, effort | What it means | MA |
|---|---|---|
| 50, 200 | trades force for distance | 0.25 |
| 300, 300 | direction only | 1 |
| 1000, 250 | quadruples your push | 4 |
| 500, 100 | five times your push | 5 |
| 900, 150 | six times your push | 6 |
Questions
How do I calculate mechanical advantage?
Divide the load force by the effort force. A load of 500 N lifted with 100 N of effort gives 5. Use the same force unit for both so the ratio comes out unitless.
What does the value mean?
It is how many times the machine multiplies your input force. Above 1 it multiplies force, exactly 1 only changes its direction, below 1 it trades force for speed or distance.
Does mechanical advantage have units?
No. One force divided by another cancels the units, so the result is a plain ratio. That is why the answer reads 5 rather than 5 N.
Is this the ideal or the actual mechanical advantage?
The actual one, taken from the forces you enter. In a frictionless machine it would equal the ideal value set by lengths or radii; friction usually puts the real figure a little below that.
Where is mechanical advantage used?
Anywhere a simple machine multiplies force: a crowbar prying a lid, a block and tackle lifting an engine, a ramp rolling a barrel up, gears in a bike or a winch.
Sources and last check
Information, not professional advice.