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Physics

Lever Balance Force Calculator

Find the opposing force required to balance an ideal lever.

SI units shown beside each fieldIdeal model explained below

Physical quantities

Runs on your device

CALCULATED QUANTITY

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter load force, load arm, effort arm.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Effort force = load force × load arm/effort arm.

A WORKED EXAMPLE

Using load force = 100 N, load arm = 0.5 m, effort arm = 2 m, the result is 25 N. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

For perpendicular forces about a frictionless pivot. An idealized educational model using the stated SI units. Real systems may need additional forces, losses or experimental measurements. Not a safety or equipment specification.

Common questions

Which inputs does this calculation need?

Find the opposing force required to balance an ideal lever. Enter load force in N, load arm in m, effort arm in m. The filled example is editable and is not a saved personal record.

How should I interpret the result?

For perpendicular forces about a frictionless pivot. An idealized educational model using the stated SI units. Real systems may need additional forces, losses or experimental measurements. Not a safety or equipment specification.

Methodology maintained by ClarityKit. How these tools are built and checked.