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How Much Gravel for 100 Square Feet?

0.93cubic yards

at 3 inches deep — about 50 bags (0.5 cu ft each) or 1.3 tons

Depth	Cubic yards	Cubic feet	0.5 cu ft bags	Approx. tons
2 in	0.62 yd³	16.7 ft³	34	0.86
3 in (typical)	0.93 yd³	25 ft³	50	1.3
4 in	1.23 yd³	33.3 ft³	67	1.73

Walkways and decorative areas need 2–3 inches of gravel; driveways need 4 inches or more, usually in two compacted layers over a base. Gravel weighs about 1.4 tons per cubic yard.

The math: 100 sq ft × depth in feet ÷ 27 = cubic yards. One cubic yard of gravel covers 162 sq ft at 2" · 108 sq ft at 3" · 81 sq ft at 4".

For driveways, order crushed stone with fines (e.g. #57 over a crusher-run base) rather than round pea gravel, which never locks in place.

Different area?

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🧮Exact Gravel Calculator

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