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Speed Bump/Hump Material Volume Calculator

Calculate the asphalt or rubber material volume needed for a speed bump, accounting for its rounded cross-section.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-26 · v1.0.0

Market
Imperial · sales tax
12.14 ft0.98 ft
Schematic, drawn to the proportions you entered — not to scale on screen.

Speed bump material needed

0.07 yd³

Check your inputs

The shape factor approximates a rounded or parabolic hump cross-section — actual material needed varies with the specific speed bump profile (circular, parabolic, or sinusoidal) specified by your project.

Running these inputs gives 0.06 m³ as the speed bump material needed. Expect some drift against the real job; the calculation is solid but conditions on site are not. Currently reading for United States under IRC 2024 — pick a different market above and the figures re-cast accordingly.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • Material volume = length × width × height × a cross-section shape factor (commonly ~0.67 to approximate a rounded/parabolic hump profile rather than a full rectangular block)

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Frequently asked questions

Why apply a shape factor instead of just multiplying length x width x height?
A speed bump has a rounded or parabolic cross-section rather than a full rectangular block, so a shape factor (commonly ~0.67) is applied to approximate the smaller actual material volume of the curved profile.
What is a typical speed bump height and width?
This calculator's defaults reflect commonly used dimensions — around 0.075m height and 0.3m width in the direction of travel — but always confirm the exact profile against your project's traffic-calming design standard.
Does the shape factor change with the actual bump profile used?
Yes — the ~0.67 factor approximates a rounded/parabolic profile. A different cross-section shape (circular, sinusoidal, or a flatter speed table) would need a different shape factor to accurately estimate material volume.