Ideal Pulley Effort Calculator
Estimate lifting effort from the number of load-supporting rope segments and entered efficiency.
Your result
EVERYDAYEnter your values and select calculate.
On this page How it works & practical examples
How to use the Ideal Pulley Effort Calculator
Count only rope segments that support the moving block, not every pulley wheel. Efficiency represents your entered overall loss adjustment.
The calculation
Worked example
100 kg, four supporting segments and 80% efficiency require about 306.4578 N effort in the model.
Assumptions and limits
Steady lifting arithmetic only. Rope ratings, attachment loads, dynamics, braking and safe rigging are not determined by this estimate.
Common questions
Which inputs should I use?
Count only rope segments that support the moving block, not every pulley wheel. Efficiency represents your entered overall loss adjustment.
What does the result exclude?
Steady lifting arithmetic only. Rope ratings, attachment loads, dynamics, braking and safe rigging are not determined by this estimate.