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MATERIAL CALCULATOR

Pea gravel calculator.

Estimate the volume of pea gravel for a path or small outdoor area.

KEEP YOUR PLAN

Give your project a name.

Save your measurements and quotes on this device. No account needed.

My saved projects

YOUR MEASUREMENTS

Use the depth and allowance from your project specification.

Bag sizes, weight & pricing +

Bag counts and prices apply to the main material only. Enter your supplier’s density to calculate weight.

Compare bags with bulk delivery +

Use the bag size and units above. Compare the same product at your supplier’s quoted prices. Enter small-bag contents above and its price below. Include each delivery charge; enter zero for pickup.

Bulk-bag quote · optional third option

Compare small bags, bulk bags and a loose load side by side. Each price is optional; include delivery once for each option.

Minimum and increment use the bulk quote unit. For half-yard orders, enter 0.5 as the increment. Zero uses the exact estimate. Check taxes, unloading charges and access separately. Weight quotes need your supplier’s bulk density.

Gouache illustration of a pale gravel path curving between leafy garden borders.
AI-generated illustration, not a photograph of a completed project.
BEFORE YOU ORDER

Getting a useful estimate

A product sold as pea gravel may have a different bulk density from crushed stone. Use the supplier’s figure for weight estimates.

Measure the space you need to fill. Rectangles use length and width; circles use diameter. For several sections, choose combined areas and add rectangles, then subtract exclusions. The final area must be greater than zero.

Check the stone before comparing prices

Pea gravel is a product name, not a fixed density. Gravelshop’s linked 3/8-inch white pea gravel is rounded and does not interlock. Ask your supplier whether the stone suits your planned use, including any edging or base requirements.

Compare quotes for the same size and product. For a weight quote, request the bulk density and confirm whether “ton” means a US short ton, imperial long ton or metric tonne.

Gravelshop: White Pea Gravel (3/8 inch)

Compare bags with a bulk order

Open the quote comparison above and enter a bag size, bag price, bulk price and delivery charge. Minimum orders and delivery can make bulk more expensive for a small path. The tool rounds bags upward and shows extra material from each order.

For an arithmetic example, a 12-by-4-foot area at 2 inches deep contains 8 cubic feet. That is 16 half-cubic-foot bags, or about 0.296 cubic yards before any allowance. The example depth is not a construction recommendation.

National Institute of Standards and Technology: NIST SI conversion factors

Ask before arranging delivery

Confirm the exact product, order unit, minimum load, delivery charge and where the supplier can unload. Keep a base-layer order separate from the decorative surface quantity.

Gravelshop: White Pea Gravel (3/8 inch)

Volume formula

Volume = area × depth × (1 + allowance ÷ 100)

Allowance applies once to each volume layer. No density or compaction factor is assumed. If buying by weight, enter the density for your supplier’s product in the units shown.

Sources & what they cover

  • NIST SI conversion factorsNational Institute of Standards and Technology

    Exact US customary and SI conversion factors; no material or installation recommendations.

    Source checked
  • White Pea Gravel (3/8 inch)Gravelshop

    One supplier’s rounded gravel product and product-specific bulk-density conditions. No density preset imported.

    Source checked

We check what each reference covers. A source check does not mean a specialist has reviewed this tool. You supply the depths, densities, prices and blend proportions.

Operated by Pete CallaghanUpdated Not yet independently reviewedHow we check our toolsReport a correction