BagTally

Methodology & data sources

How we calculate

Volume = area × depth, with every length converted to feet first. We report cubic yards, cubic feet, tons, and bag counts.

Compaction. Dense materials settle when tamped. To reach a finished depth we order the loose volume geometric ÷ (1 − settlement), where settlement is the fraction a material loses when compacted (0 for clean, rounded, non-compacting materials).

Waste. A default 10% covers spillage and uneven ground; you can change it.

Tons & coverage. Tons use each material's loose density in pounds per cubic yard. Coverage tables derive from the same density, so they always match the calculator.

We deliberately don't estimate delivery trips — bulk material is heavy, so we show total weight and let you match it to your vehicle's payload and GVWR.

Density assumptions & sources

Material Type Density (lb/yd³) Settlement Source
Gravel #57 Crushed Stone (3/4") 2,400 0% https://www.gravelshop.com/p/3-4-drainage-gravel-gray-651.asp
Gravel Pea Gravel (3/8") 2,800 0% https://selectsg.com/how-much-does-a-yard-of-pea-gravel-weigh/
Gravel Crusher Run / Road Base 3,000 25% https://www.allseasonssupply.com/blog/what-is-abc-stone-the-essential-guide-for-boone-driveways-and-construction
Crushed Stone #57 Crushed Stone (3/4") 2,400 0% https://www.gravelshop.com/p/3-4-drainage-gravel-gray-651.asp
Crusher Run Crusher Run (ABC / road base) 3,000 25% https://www.allseasonssupply.com/blog/what-is-abc-stone-the-essential-guide-for-boone-driveways-and-construction
Pea Gravel Pea Gravel (3/8") 2,800 0% https://selectsg.com/how-much-does-a-yard-of-pea-gravel-weigh/
River Rock River Rock (1"–3") 2,550 0% https://ottrsupply.com/blogs/articles/how-much-does-river-rock-weigh
Decomposed Granite Decomposed Granite 2,800 25% https://mainslandscapesupply.com/product/decomposed-granite/
Sand Concrete / Sharp Sand 2,700 15% https://www.anchsand.com/product/concrete-sand-multipurpose-sand/
Sand Mason Sand 2,500 10% https://mainslandscapesupply.com/product/mason-sand/
Sand Play Sand 2,500 0% https://irwin-aggregates.com/site/wp-content/uploads/2020/01/Play-Sand-Data-Sheet-IQA.pdf

Last verified 2026-06-02. Densities vary with moisture and source; values are planning estimates.