Gravel Calculator
How much gravel for a path, driveway or patio base? Enter the area and depth and get cubic yards and a tonnage range — stone density varies by type, so weight is a range.
2–3 in for a path top-up, 4 in for a new driveway base, 6 in for heavy loads.
Gravel for 200 sq ft at 4 in deep
2.47 cu yd — 67 cu ft · 1.89 cu m
3.2–3.7 tons — weight range — stone type changes density
Or in bags: 134 bags of 0.5 cu ft — bags only make sense for tiny jobs; bulk by the yard is far cheaper. One cubic yard covers about 80 sq ft at 4 in deep. Order a little extra: gravel compacts and sinks into soft ground, and a thin spot shows through within weeks.
Estimate. Weight is a range because pea gravel, crushed stone and river rock have different densities (about 1.3–1.5 tons per cubic yard). Confirm the price per yard or per ton locally.
Formula used: Volume = length × width × (depth ÷ 12) cubic feet. Cubic yards = cubic feet ÷ 27. Tons = cubic yards × 1.3–1.5 (stone density range).
How this estimate works: Gravel volume is area times depth, converted to cubic yards — the unit bulk suppliers sell in. Weight is given as a range because stone density varies: crushed granite is heavier than pea gravel. The range matters for delivery, because trucks are loaded by weight as well as volume.
How the gravel calculator works
Gravel volume is area times depth, converted to cubic yards — the unit bulk suppliers sell in. Weight is given as a range because stone density varies: crushed granite is heavier than pea gravel, at about 1.3–1.5 tons per cubic yard. The range matters for delivery, because trucks are loaded by weight as well as volume. One cubic yard covers about 80 sq ft at 4 in deep, and gravel compacts and sinks into soft ground, so order a little extra rather than a little short.
Try next: Mulch Calculator · Topsoil Calculator · Sand Calculator
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