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Beam Deflection Calculator

Science & Engineering

Simply supported beam under uniform load

Quick Answer

Beam Deflection Calculator: Simply supported beam under uniform load. Beam Deflection Calculator uses standard science & engineering formulas to compute accurate results instantly.

Beam parameters

m
kN/m
GPa
cm⁴
Mid-span deflection33.75mm
Limit L/25024.0mm
Limit L/40015.0mm

How it works

  1. 1δ = 5qL⁴ / (384EI) in N-mm units
  2. 2δ = 5 × 10 × 6000⁴ ÷ (384 × 200000 × 2500×10⁴) = 33.75 mm
  3. 3δ exceeds L/250=24.0mm — deepen the section or shorten the span
Valid for prismatic simply supported beams under full-span uniform load; fixed ends reduce deflection to 1/5. This checks serviceability only — bending and shear strength must be verified separately.

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How to Use

  1. Enter known quantities: fill values and confirm units in the Beam Deflection 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

  • Beam Deflection 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: Simply supported beam under uniform load.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Beam Deflection Calculator formula

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

FAQ

How do I use the Beam Deflection Calculator?
Open the page and fill in the input fields — results update automatically. Simply supported beam under uniform load.
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. Beam Deflection Calculator[EB/OL]. https://www.yijiansuan.com/en/c/science/beam-deflection

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