Mechanical Advantage Calculator

Your details

Distance from the fulcrum to where you push (the effort).
Distance from the fulcrum to the load.
Length of the sloped surface the load travels along.
Vertical height the load is raised.
100% is the ideal (frictionless) machine. Lower it to estimate the actual MA after friction.
%
Ideal mechanical advantageForce multiplier (MA > 1)
4
Actual mechanical advantage4
Effort travels this much farther4×
4
Trades force for speed (MA < 1)<1Redirects only (MA = 1)1-1.0001Force multiplier (MA > 1)1.0001+

This machine multiplies your force by about 4.00×.

  • For a lever, mechanical advantage is the effort arm divided by the load arm, measured from the fulcrum.
  • This setup multiplies your effort about 4.0×, and the effort must move 4.0× as far as the load.

Next stepDrop the efficiency below 100% to estimate the actual mechanical advantage after friction.

 = Powered by OnlyCalculators