Lever Mechanical Advantage Calculator

Compute the mechanical advantage of a lever using load and effort arm lengths.

Real-world levers lose efficiency due to friction.

Examples

  • Load arm 2 m, effort arm 0.5 m ⇒ 4
  • Load arm 1 m, effort arm 0.25 m ⇒ 4

FAQ

What is mechanical advantage?

The ratio of load arm length to effort arm length.

Does this include friction?

No, it assumes an ideal lever.

Can I use different units?

Use the same unit for both arms to maintain accuracy.

What does a higher ratio mean?

More multiplication of input force.

Additional Information

  • Result unit: ratio