lever (lift mass)

The Weight Lifted by Leverage calculator (`W = F * y/x`) computes the mass (W) that can be lifted by the use of a lever when the downward mass / weight and the two lengths (x and y) on either side of the fulcrum are known.

INSTRUCTIONS:  Choose units and enter the following:

• (F)  Downward Force (weight) opposite the fulcrum from the object.
• (y) Length of Beam on opposite side of fulcrum from the object (see diagram).
• (x) Length of Beam on object's side of fulcrum (see diagram)

Weight Lifted by Lever (W): The calculator computes the mass/weight (W) in kilograms.  However this can be automatically converted to other mass or weight units via the pull-down menu.

The Math/Science

A lever is a simple machine where the ratio of the product of the lengths and forces on opposite sides of a fulcrum are equal.

Mechanical Leverage Functions

• (y) Beam Length: computes the required length of a beam above the fulcrum for a lever to raise a weight (W) based on the downward weight applied (F) and the length below the fulcrum (x).
• (W) Lift Weight: computes the weight that can be lifted with a lever based on the length of the beam (y) above the fulcrum, the length (x) below the fulcrum and downward weight applied (F).
• (x) Fulcrum Position: computes the length from the object to the fulcrum needed in a lever to lift a weight (W) with a downward force (F) with a beam of length (L), where L = x + y (see below).
• (F) Downward Force or Weight: computes the mass needed to create the downward force (F) to raise the object with a lever.
• L = x+y : computes the sum of two lengths

Simple Machine Calculators

• Lever Beam Length:  Computes the length of a lever (beam) on one side of a fulcrum needed to lift an object based on the objects weight and the length of the beam on the other side of the fulcrum.
• Leverage Lift Weight:  Computes the weight that can be lifted using a lever based on the downward force and the length of the lever on either side of the fulcrum.
• Fulcrum Position (x): Computes the position of the fulcrum needed in a lever to lift a weight (W) with a downward force (F) with a beam of length (L), where L = x + y.
• Belt Length:  Computes the length of a belt that goes around two pulleys of different diameters separated by a specific distance.two pulley system
• Belt Speed: Computes the speed a belt travels based on the diameter of the pulley and the RPMs.
• Pulley RPMs: Computes the RPMs of a pulley based on the speed of the belt and the diameter of the pulley.
• 2nd Pulley RPMs: Computes the RPMs of a second pulley in a two pulley system when the RPM and Diameter are known for one pulley and the diameter of the second pulley is also known.
• 2nd Pulley Diameter:- Computes the diameter of a second pulley in a two pulley system based on diameter and RPM of one pulley and the RPMs of the second.
• RPM of 4th pulley on three shafts: Computes the RPMs of a fourth pulley on a three shaft system when the RMPs of the first shaft is known and the four diameters.
• 2nd Gear RPM:  Computes the RPMs of a second gear when the RPM and number of teeth are known for the first gear, and the number of teeth are known for the second gear.
• Pulley RPMs: Computes pulley RPMs from belt speed and pulley diameter.
• Sum of Two Lengths: Computes the sum of two lengths (useful with lever calculations).
• Second Gear Torque: Calculates the torque of a second gear when the torque and number of teeth are known for the first gear and the number of teeth of the second gear is known.
• Leadscrew Torque (lift): Computes the torque required to lift a load with a square thread power screw assembly.