Beam Deflection (Simply Supported)

Max deflection of a uniformly loaded beam

🔒 Stays local · Method · November 2026 · Disclaimer · Beam Deflection (Simply Supported)

Working out max deflection of a uniformly loaded beam is easier with Beam Deflection (Simply Supported), which answers as you type. Type Load (kN/m), Length (m) and EI (kN·m²) into Beam Deflection (Simply Supported); each keystroke re-runs the math. Beam Deflection (Simply Supported) prints the result and its working. Students and professionals reach for Beam Deflection (Simply Supported) when speed matters. No sign-up is needed for Beam Deflection (Simply Supported). The math runs on your device. Beam Deflection (Simply Supported) 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. Beam Deflection (Simply Supported) goes from question to answer fast. Try Beam Deflection (Simply Supported) now and keep it handy.

How much does a beam deflect?

Deflection is how far a beam bends under load, and for a simply supported span it depends on the load, the span and the stiffness of the section (its modulus and moment of inertia). Enter those and the page returns the maximum deflection, usually read against a span limit.

Inputs: Load, Length, and EI.
Output: the max deflection uniformly, followed by the terms it was built from.
Method: the standard Engineering method for the max deflection uniformly, run locally in your browser.

Quick answer

Deflection grows with the cube of the span, so doubling a span multiplies the sag by eight for the same load and section.

How does the Beam Deflection (Simply Supported) work?

Beam Deflection (Simply Supported) computes the max deflection uniformly directly from your inputs — the Load, Length, and EI feed the formula. The max deflection uniformly is calculated in the browser, so the inputs never leave the device.

How it works

Beam Deflection (Simply Supported) turns the values you enter into a verified max deflection uniformly — the formula, every intermediate step, and the assumptions sit beside the result instead of hidden behind it.

How to use it

Load — used once on beam deflection (simply supported), and worth a second glance if the max deflection uniformly looks off.
Length — the Engineering field that most often arrives from another document; re-check its scale.
EI — read literally by the beam deflection (simply supported) formula, so a placeholder produces a placeholder answer.
Read the last line first on the beam deflection (simply supported) page — the figure — then work upward until the number stops being surprising.
Reopen Beam Deflection (Simply Supported) with the share link and the same figure returns, which is the easiest way to revisit a case later.

The formula behind the result

The calculation in Beam Deflection (Simply Supported) applies the standard Engineering method, keeping full precision internally and rounding only the final display.

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

Understanding the result

Work upward from the step list on the beam deflection (simply supported) page and stop when the figures stop surprising you; that is the row your error is on.

Where it helps

Common scenarios for Beam Deflection (Simply Supported): holding a figure for later review, checking how far a small error travels, and checking a sum that someone else did — the steps behind the figure make it as useful for learning the method as for applying it.

Common mistakes

Skipping the Load, Length, and EI because it looked optional is common, yet on Beam Deflection (Simply Supported) an empty-looking field still feeds the max deflection uniformly.

Tip: Beam Deflection (Simply Supported) returns δ_max = 0.0081 m at its defaults; double the Load (kN/m) and it returns δ_max = 0.0163 m.

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 nothing is stored server-side, there is no history to clear and no account to close after using Beam Deflection (Simply Supported).

Frequently Asked Questions

What does beam deflection (simply supported) compute?

Set the Load, Length, and EI on Beam Deflection (Simply Supported) to your own case and the figure re-derives from scratch — no stored state and no cached figure from an earlier run. Because the same result can be recalculated offline, Beam Deflection (Simply Supported) keeps working where a connection-dependent tool would stop.

Which method produces the max deflection uniformly?

The first steps are δ = 5wl⁴ / (384ei), then δ = 5×10×5⁴ / (384×10000). Beam Deflection (Simply Supported) substitutes the Load, Length, and EI into the formula, evaluates it in the order shown in the steps panel, and reports the max deflection uniformly rounded for readability.

What inputs does the Beam Deflection (Simply Supported) ask for?

Beam Deflection (Simply Supported) needs no setup: no account, no upload.

How sensitive is the result to the Load (kN/m)?

At the defaults Beam Deflection (Simply Supported) returns δ_max = 0.0081 m; doubling Load (kN/m) to 20 moves it to δ_max = 0.0163 m.

How should the result from this page’s calculator be read?

The main number the beam deflection (simply supported) returns is the max deflection uniformly for your exact inputs. Treat the max deflection uniformly from Beam Deflection (Simply Supported) as a planning figure rather than a binding quote, and confirm important decisions with the relevant professional.

In which situations does the page help?

Students, planners, and professionals reach for Beam Deflection (Simply Supported) for holding a figure for later review, checking how far a small error travels, and checking a sum that someone else did, and for sanity-checking numbers that arrived from somewhere else. Open Beam Deflection (Simply Supported) before the meeting rather than during it — the result for three variants takes less time than finding the right tab.

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