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Bagged Gravel Calculator

Find how many bags of gravel your project needs. Enter your area and depth and the calculator estimates the number of standard 0.5 cubic-foot bags.

Bagged Gravel Calculator

0
bags needed
0
cubic yards
0
cubic feet
Bagged Gravel Calculator, live preview
Enter values to see your estimate.

How to Calculate Bags of 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.

Bag coverage by depth

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.

Bagged Gravel FAQs

How many bags of gravel do I need?
A standard 0.5 cu ft bag covers about 2 sq ft at 3 inches deep. One cubic yard equals roughly 54 bags, this tool gives your exact count.
How many bags of gravel are in a cubic yard?
About 54 bags of the common 0.5 cubic-foot size, or 27 bags of the 1 cubic-foot size.
Is bagged or bulk gravel cheaper?
Bulk is cheaper per unit for larger projects; bags are convenient for small jobs and easy transport.
How much does a bag of gravel weigh?
A 0.5 cu ft bag weighs about 40–50 lbs depending on the stone type.

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