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Lever Calculator

Science & Engineering

F1·L1=F2·L2, three lever types

Quick Answer

Lever Calculator: F1·L1=F2·L2, three lever types. Lever Calculator uses standard science & engineering formulas to compute accurate results instantly.

m
N
m
Required effort F1
120.00 N
Effort-saving (L1 > L2) · MA 5.00×

Calculation steps

  1. 1Lever balance: F1 × L1 = F2 × L2
  2. 2F1 = F2×L2/L1 = 600×0.3/1.5 = 120.00 N
  3. 3Mechanical advantage = F2/F1 = 5.00× (Effort-saving (L1 > L2))

Three types of levers

Effort-saving (L1 > L2)Crowbar, bottle opener, wheelbarrow
Effort-increasing (L1 < L2)Tweezers, chopsticks, fishing rod
Equal arm (L1 = L2)Balance scale, seesaw
"Give me a place to stand and I shall move the Earth" — Archimedes. What you save in force you pay in distance: work W = F×s is conserved. Effort-increasing levers (tweezers) trade force for range and precision of movement.

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How to Use

  1. Enter known quantities: fill values and confirm units in the Lever Calculator.
  2. Instant solution: unknowns solve live with the formula shown transparently.
  3. Use constant/material tables: standard physical constants and material data are listed on this page.
  4. Compare conditions: change inputs to compare scenarios.

Key Points

  • Lever Calculator is a free online science & engineering tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: F1·L1=F2·L2, three lever types.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Lever Calculator formula

Lever Calculator uses standard science & engineering formulas to compute accurate results instantly.

FAQ

How do I use the Lever Calculator?
Open the page and fill in the input fields — results update automatically. F1·L1=F2·L2, three lever types.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

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Source & Updates

Based on CODATA recommended constants and standard physics formulas. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Lever Calculator[EB/OL]. https://www.yijiansuan.com/en/c/science/lever

Results provided by this tool are for reference only and do not constitute professional advice.