Calculator

Length (ft)

Width (ft)

Depth (in)

Density (lb/ft³)

Price per Ton ($)

Cubic Yards

Estimated Weight

tons

Estimated Cost

"Stone" covers a wide range of products — pea gravel, crushed #57 stone, decorative boulders — and density climbs with stone size, from around 90 lb/ft³ for small crushed stone up past 150 lb/ft³ for large rip rap. Check your specific product's spec sheet and adjust the density field before ordering.

Enter length, width, and depth to calculate stone volume, weight, and cost.

How to Use the Stone Calculator

Fill in length, width, and depth for the area, adjust the density to match the specific stone product, and add a price per ton for an optional cost estimate.

cubic feet = length (ft) × width (ft) × (depth (in) ÷ 12)
cubic yards = cubic feet ÷ 27
weight = cubic feet × density (lb/ft³)

"Stone" is the broadest material category on this site's landscaping calculators, spanning pea gravel, crushed #57 stone, decorative fieldstone, and large rip rap — and the density spread across that range is enormous. Small crushed stone runs 90-105 lb/ft³; large rip rap boulders, being solid rock with almost no void space between pieces, can push past 150 lb/ft³. Guessing wrong here doesn't just shift the answer a little, it can be off by 50% or more.

There's no single defensible default across that range, so this Stone Calculator starts at 100 lb/ft³ (a reasonable figure for mid-size crushed stone) purely as a starting point. Pull the actual number off your supplier's product page or spec sheet before ordering anything in volume.