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Concrete Cubic Yards Calculator

Cubic yards of concrete for slab, footing, column, or stairs. Bag vs bulk cost comparison.

Updated April 2026

Cubic feet

88.0

Cubic yards

3.26

80 lb bags

147

Cheaper

Bulk

Ready-mix delivery

$489

Bag method (147 bags)

$735

Includes 10% waste. Bulk ready-mix typically beats bags above ~1 cu yd — at smaller volumes, the delivery minimum makes bags cheaper.

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What it does

Slabs, footings, columns, stairs. Cubic feet, cubic yards, bags needed, and whether bulk-delivered or bagged is cheaper for your job.

Runs entirely in your browser — no upload, no account, no watermark. For more tools in this category see the full tools index.

Embed this tool on your siteShow snippet

Paste this snippet into any page. Loads on-demand (lazy), no tracking scripts, and sized to most dashboards. Replace the height to fit your layout.

<iframe src="https://freetoolarena.com/embed/concrete-cubic-yards-calculator" width="100%" height="720" frameborder="0" loading="lazy" title="Concrete Cubic Yards Calculator" style="border:1px solid #e2e8f0;border-radius:12px;max-width:720px;"></iframe>
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How to use it

  1. Pick shape + dimensions.
  2. Read cu yd + bag count.
  3. Compare bulk vs bagged cost.

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