LeverMa · workshop
LeverMa lever mechanical advantage
Estimate ideal MA before building a simple lever or pry setup
Result
MA=effort_arm/load_arm; effort_for_100lbf_load=100/MA
How to use this estimate
Compute ideal lever mechanical advantage from effort arm and load arm lengths. How it works: MA=effort_arm/load_arm; effort_for_100lbf_load=100/MA. Out of scope: friction losses; beam bending strength; fulcrum material selection. This is an approximate screening estimate, not a substitute for manufacturer charts or a full engineering design. Does not certify code compliance; confirm manufacturer data where it applies.
Sources, methodology, and assumptions
Methodology
MA=effort_arm/load_arm; effort_for_100lbf_load=100/MA
Assumptions
Rigid lever; Forces perpendicular. This is an approximate screening estimate, not a substitute for manufacturer charts or a full engineering design.
Out of scope
friction losses; beam bending strength; fulcrum material selection
Sources
- NIST SP 811 — unit consistency context (not exact formula page) — NIST
- NIST classical mechanics / measurement context — NIST Physical Measurement Laboratory
Last technically reviewed: 2026-09-11