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Mulch / Landscape Material Calculator

Calculate cubic yards of mulch, gravel, topsoil, or sand. Compares bag-vs-bulk pricing and coverage at different depths.

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Calculate cubic yards of mulch, gravel, topsoil, sand, or decorative rock you need for a landscape project. Includes bag-vs-bulk pricing comparison and coverage at standard depths.

Cubic yards = (length × width × depth) / 27 with everything in feet. A 10 × 20 ft bed at 3 in deep needs (10 × 20 × 0.25) / 27 = 1.85 cubic yards. Order 10% extra. Bag vs bulk: 27 cu ft per yard means 13.5 bags at 2 cu ft each. Bulk delivery saves 30-50% per yard but requires a truck or driveway pile.

Disclaimer: Estimates assume level ground. Slope or uneven terrain may require 10-20% more material. Always confirm volume with your supplier before delivery.
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Frequently Asked Questions

What is the Mulch / Landscape Material Calculator for?
Calculate cubic yards of mulch, gravel, topsoil, sand, or decorative rock you need for a landscape project. Includes bag-vs-bulk pricing comparison and coverage at standard depths.
How do I use the Mulch / Landscape Material Calculator?
Cubic yards = (length × width × depth) / 27 with everything in feet. A 10 × 20 ft bed at 3 in deep needs (10 × 20 × 0.25) / 27 = 1.85 cubic yards. Order 10% extra. Bag vs bulk: 27 cu ft per yard means 13.5 bags at 2 cu ft each. Bulk delivery saves 30-50% per yard but requires a truck or driveway pile.
How accurate are my mulch / landscape material results?
Estimates assume level ground. Slope or uneven terrain may require 10-20% more material. Always confirm volume with your supplier before delivery.
Is the Mulch / Landscape Material Calculator free to use?
Yes - every calculator on WhichCalc is completely free with no signup, no usage limits, and no tracking on the calculation itself. Results display instantly in your browser and your inputs are never sent to a server. Bookmark the page if you use this calculator regularly.
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