Measure the beds, pick the material, and get yards, tons, bags and truck loads with real densities — hardwood, dyed, cedar, pine straw, stone and more.
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A yard of hardwood mulch covers 108 square feet at 3 inches — the 324 rule — but pea gravel sells by the ton and pine straw by the bale. The calculator speaks each material's own unit so the supplier order is right the first time.
More free landscaping tools: Sod & seed calc · Paver estimator · Plant spacing · Fertilizer math · Mow rate planner · Crew time · the full grounds bench · all free tools
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<iframe src="https://getcrewplate.com/embed?trade=grounds&tool=mulch" width="100%" height="1150" style="border:1px solid #CBD5E1;border-radius:10px" loading="lazy" title="Mulch & materials"></iframe> <p style="font:12px/1.5 system-ui;color:#64748B;margin:6px 0 0">Calculator by <a href="https://getcrewplate.com/free-tools">Crewplate</a> — 26 free trade calculators</p>