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Landscape & Garden Gravel Calculator

Estimate gravel for garden beds, borders, paths and decorative ground cover. Enter your area and depth to get cubic yards, tons and bags.

Landscape & Garden Gravel Calculator

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cubic yards
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tons
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bags (0.5 ft³)
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est. cost
Landscape & Garden Gravel Calculator, live preview
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Enter values to see your estimate.

How to Calculate Landscape Gravel

Change the calculator above and watch every figure and the diagram below update live.

Top-down view (area × depth)

W L depth 4"

Step 1 · Area

20 ft × 10 ft = 200 ft²

Step 2 · Volume (× depth, ÷ 27)

200 ft² × 0.33 ft ÷ 27 = 2.47 yd³

3.46
tons (× 1.4)
134
bags (÷ 0.5 ft³)

These figures update automatically as you change the calculator above.

Landscape gravel coverage

Approximate coverage of one cubic yard of gravel at common depths.

Approximate coverage of one cubic yard of gravel at common depths.
DepthCoverage per yd³Relative coverage
1" 324 sq ft
100%
2" 162 sq ft
50%
3" 108 sq ft
33%
4" 81 sq ft
25%
6" 54 sq ft
17%
3 in
3"

At 3 inches deep, one cubic yard of gravel covers 108 sq ft.

Landscape Gravel FAQs

How much gravel do I need for landscaping?
Measure each area's length × width, pick a 2–3 inch depth, and the calculator returns cubic yards, tons and bags.
How do I measure irregular garden shapes?
Break the area into rectangles and circles, calculate each, and add them together for the total volume.
How deep should garden gravel be?
2–3 inches over landscape fabric is enough for most beds and borders; use a little more for paths.
How much area does a bag of gravel cover?
A 0.5 cu ft bag covers about 2 sq ft at 3 inches deep, so plan roughly 54 bags per cubic yard.

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