Beam Deflection (Simply Supported)
Max deflection of a uniformly loaded beam

Beam Deflection (Simply Supported) is a free online calculator that helps you max deflection of a uniformly loaded beam. Type in Load (kN/m), Length (m) and EI (kN·m²) — the calculator recalculates live with every keystroke. You get a clean, precise output with the full working shown, so you can verify every step. Use it whenever you need a reliable number without opening a spreadsheet. Your inputs never leave your device: the calculation is fully client-side, and optional analytics/advertising only activate with your consent. It is part of the Engineering collection on CalcProMaster, alongside beam deflection calculator simply supported uniform load, free online beam deflection (simply supported) calculator and more. Give Beam Deflection (Simply Supported) a try — it takes seconds and costs nothing.
What does the page calculator do?
Beam Deflection (Simply Supported) works out the max deflection uniformly from the Load, Length, and EI, following standard Engineering conventions — the page defaults produce a max deflection uniformly of δ_max = 0.0081 m.
- Inputs: Load, Length, and EI.
- Output: the max deflection uniformly, plus the intermediate steps behind it.
- Method: the standard Engineering formula, evaluated entirely in your browser.
Quick answer
With the default inputs (load of 10, length of 5, ei of 10,000), beam deflection (simply supported) returns a max deflection uniformly of δ_max = 0.0081 m. Assumptions and limits are summarized below.
How does it work?
Beam Deflection (Simply Supported) computes the max deflection uniformly directly from your inputs — the Load, Length, and EI feed the formula. Nothing is uploaded: the math runs locally in your browser and the result appears as you type.
How it works
Beam Deflection (Simply Supported) is built for beam deflection simply questions that need a defensible number: the working is always visible, the inputs accept your own values, and the max deflection uniformly updates as you type.
How to use it
- Load — the value that feeds directly into the formula — match it to the scenario you are modeling before moving on.
- Length — in beam deflection (simply supported), this value feeds the formula directly, and the steps panel shows exactly where it enters the max deflection uniformly.
- EI — one of the values the calculation builds from; the result reflects exactly what you type here.
- The output panel in beam deflection (simply supported) leads with the headline result and follows with the steps behind it, so the value can be checked rather than assumed.
- Iterate. Vary the inputs one at a time; the movement in the figure shows which lever matters most for your beam deflection (simply supported) question.
The formula behind the result
Beam Deflection (Simply Supported) lists every intermediate step in the result panel, so the derivation of the result can be checked line by line.
Worked example: with load of 10, length of 5, ei of 10,000, this beam deflection (simply supported) calculation returns δ_max = 0.0081 m. The same run reports 8.14 mm.
The steps it follows:
- δ = 5wL⁴ / (384EI)
- δ = 5×10×5⁴ / (384×10000)
- δ = 0.0081 m = 8.14 mm
Substitute your own values and the same steps produce your answer — that is the point of a calculator that shows its working.
Understanding the result
The result panel leads with the max deflection uniformly and follows with intermediate values; if the headline surprises you, the steps usually reveal which input is responsible.
Where it helps
Common scenarios for Beam Deflection (Simply Supported): day-to-day planning, comparing scenarios side by side, and double-checking the max deflection uniformly. The step list makes it equally useful for learning the method and for double-checking someone else's numbers.
Common mistakes
Rounding intermediate values by hand introduces error Beam Deflection (Simply Supported) does not have; it keeps full precision internally, so trust the displayed max deflection uniformly over mental arithmetic.
Tip: Run Beam Deflection (Simply Supported) twice with deliberately low and high inputs; the spread tells you how sensitive the output is, which a single run never shows.
Assumptions and limitations
Results from Beam Deflection (Simply Supported) are estimates computed from the values entered; real-world outcomes can differ when fees, taxes, or conditions not modeled here apply.
Why use this calculator
Because the working is visible: Beam Deflection (Simply Supported) shows each operation behind the output in the steps panel, so you can verify the result instead of trusting a black box.
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Frequently Asked Questions
What does the tool calculate?
This page is a working beam deflection (simply supported): enter your values, read the figure, and follow the step list to see exactly how the answer was derived. Because it is fast and private — Beam Deflection (Simply Supported) runs entirely in your browser, nothing is uploaded, and no account is needed.
How is the max deflection uniformly calculated?
The first steps are δ = 5wl⁴ / (384ei), then δ = 5×10×5⁴ / (384×10000). Rounding follows standard display conventions — the underlying math keeps several decimal places until the max deflection uniformly is shown.
What do I need to use the Beam Deflection (Simply Supported)?
The Load, Length, and EI it asks for, or the page defaults if you just want to see the calculation work. Each input maps directly to the formula, and changing any one of them recalculates the max deflection uniformly instantly.
What does the result from the tool mean?
The main number the beam deflection (simply supported) returns is the max deflection uniformly for your exact inputs, and the supporting figures and step list give it context. Treat the max deflection uniformly as a planning figure rather than a binding quote, and confirm important decisions with the relevant professional.
When is the page most useful?
Students, planners, and professionals use it for day-to-day planning, comparing scenarios side by side, and double-checking the max deflection uniformly, and for sanity-checking numbers that arrived from somewhere else. Run Beam Deflection (Simply Supported) twice with deliberately low and high inputs; the spread tells you how sensitive the result is, which a single run never shows.