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Mulch & Gravel Calculator

You need1.85 cubic yards
Cubic feet
50 ft³
Area covered
200 sq ft
Approximate weight
0.56 tons
2 cu ft bags
25
3 cu ft bags
17

Weights are typical averages (gravel ≈ 1.4 t/yd³, sand ≈ 1.35, topsoil ≈ 1.1, mulch ≈ 0.3) and vary with moisture. Recommended depths: mulch 2–4 in, gravel paths 2–3 in.

Estimate how much mulch, gravel, topsoil or sand to buy for a garden bed, path or driveway, in cubic yards, approximate tons and bags.

How to use the Mulch & Gravel Calculator

  1. Choose the material.
  2. Enter the area length and width in feet.
  3. Enter the depth in inches.

How it works

Cubic yards = length × width × depth (in) ÷ 12 ÷ 27. Bulk materials are sold by the cubic yard or ton; weight depends on the material and moisture (gravel ≈ 1.4 tons per yard, topsoil ≈ 1.1, sand ≈ 1.35, mulch ≈ 0.3). Recommended depths: 2–4 in of mulch, 2–3 in of gravel for paths and 4–6 in for driveways.

Coverage of one cubic yard

DepthArea covered
1 in324 sq ft
2 in162 sq ft
3 in108 sq ft
4 in81 sq ft
6 in54 sq ft

Frequently asked questions

How much area does a yard of mulch cover?

About 108 sq ft at 3 inches deep, or 162 sq ft at 2 inches.

How many bags of mulch in a yard?

13.5 bags of 2 cu ft, or 9 bags of 3 cu ft.

How many tons of gravel do I need?

Multiply cubic yards by about 1.4 for typical gravel.

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