Mulch Calculator

Calculate mulch for rectangles, squares, circles, triangles, borders, tree rings, and irregular beds. Enter each bed as its own section and sum them into one total. The core formula is Cubic Yards = (Area × Depth in inches) ÷ 324.

Built-in presets: 1–2" to refresh existing mulch, 2–3" for flower beds and general landscaping, 3–4" for new beds and around trees. One cubic yard covers about 162 sq ft at 2", 108 sq ft at 3", and 81 sq ft at 4".

Get results in cubic yards, cubic feet, and cubic meters for bulk orders. Convert the same volume into bags for 1, 1.5, 2, and 3 cu ft sizes. One cubic yard equals 27 cu ft — 13.5 two-cubic-foot bags, 9 three-cubic-foot bags, or 18 one-and-a-half-cubic-foot bags.

Estimate weight at about 600 lb per cubic yard. Add a customizable waste factor: 5% for a clean, square bed, 10% for settling, spillage, and irregular edges, and 15–20% for slopes with pine straw. Round up to whole bags before ordering.

Enter your bulk price per cubic yard or bag price to get an instant project cost. Compare bulk delivery against bagged retail side by side. In 2026, bulk mulch runs about $30–$65 per cubic yard, with bagged mulch at $3–$4 per 2 cu ft bag, plus delivery.

Work in feet, inches, yards, meters, and centimeters. Get output in cubic yards, cubic feet, cubic meters, litres, and bags. All calculations, coverage figures, and cost estimates update automatically. Fully functional offline.