Liberty Mutual Lift Calculator

Population
Horizontal reach (H) m
Vertical Range Middle (VRM) m
Displacement Vertical (DV) m
Frequency (F) /min

Maximum Acceptable Load

In 2021, the well-known Snook tables have been replaced by equations for calculating the maximum acceptable load when lifting.

I have adjusted the formula so that the maximum acceptable load is suitable for 90% of a population.

Source: Liberty Mutual Manual Materials Handling Equations, published by Potvin, et al., 2021.