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Crushed Stone & Crusher Run Calculator

Estimate crushed stone or crusher run for compacted bases and driveways. Enter your area and depth to get cubic yards and tons.

Crushed Stone & Crusher Run Calculator

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cubic yards (compacted)
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tons
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est. cost
Crushed Stone & Crusher Run Calculator, live preview
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Enter values to see your estimate.

How to Calculate Crushed Stone

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.

Crushed stone coverage at a glance

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.

Crushed Stone FAQs

How much crushed stone do I need?
Calculate area × depth ÷ 27 for cubic yards, then multiply by about 1.4 for tons. Crusher run packs down, so add ~10–15% for compaction.
What is crusher run?
Crusher run is crushed stone mixed with stone dust. The fines let it compact into a hard, stable base, ideal under driveways and pavers.
How much does crusher run compact?
It can settle 10–20% once compacted, so order a little extra to reach your finished depth.
Crushed stone vs gravel, what's the difference?
Crushed stone is mechanically broken with angular edges that lock together; natural gravel is rounded and shifts more underfoot.

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