Crushed Stone Calculator

Calculate crushed stone volume from your measurements, then add the product's bulk density from your supplier if you also need an estimated weight.

Crushed stone volume calculator

Material: Crushed stone · Calculating another material? Use the Gravel Calculator

Units
Area and depth

Section 1

Shape

For a square, enter the same length and width.

Enter the finished depth you plan to use.

Add another area — a second bed or a path, for example — to calculate a combined total.

Advanced optionsExtra material / handling allowance

Adds the percentage you choose to the order volume for waste, handling or contingency. It is separate from compaction.

Result

Your result will appear here

Enter your measurements and calculate to see volume in cubic yards, cubic feet, and cubic metres.

How this calculator works

The calculator multiplies your measured area by the finished depth to get the volume of crushed stone the space holds.

Volume = Area × Finished depth

Area and depth must use compatible units. The calculator converts them for you.

This page calculates one layer of loose stone. If the stone will be compacted as a base, use the Crusher Run or Road Base calculator, which accept a compaction or yield figure from your supplier.

About crushed stone

Crushed stone is quarried rock broken into angular pieces and screened into sizes. Suppliers sell it under size designations and product names — #57 stone is one common example — and each size behaves as a different product.

Why weight needs the product's density

Size grading, rock type, the amount of fines and moisture all change how much a cubic yard of crushed stone weighs. A figure for one size or one quarry is not a figure for crushed stone in general. Ask your supplier for the bulk density of the exact product and enter it after calculating volume.

The density of the solid rock itself (its specific gravity) is not the same as bulk density and cannot be used to convert delivered volume to weight.

Common uses

  • Driveway layers — the Gravel Driveway Calculator handles separate base and surface layers
  • Drainage layers and backfill
  • Pads and paths

Under pavers

For conventional interlocking concrete pavers, CMHA guidance calls for locally approved road-base aggregate or dense-graded aggregate close to ASTM D2940 — not just any crushed stone. The Paver Base Calculator covers that case.

For other materials, use the Gravel Calculator.

Worked example

Example: 16 ft × 10 ft pad at 4 in deep

  1. Area: 16 ft × 10 ft = 160 ft²
  2. Depth: 4 in = 0.3333 ft
  3. Volume: 160 × 0.3333 = 53.3 ft³
  4. Cubic yards: 53.3 ÷ 27 = 1.98 yd³

Result: 1.98 cubic yards (1.51 cubic metres). The depth is an example input.

Frequently asked questions

How much does a yard of crushed stone weigh?

It varies by size, rock type, fines content and moisture, and by whether the stone is loose or compacted. Enter your supplier’s bulk density for the exact product to get an estimate.

Does the stone size change the volume?

No. Volume comes from area and finished depth. Size affects the bulk density and which depth suits your project.

Should I account for compaction?

If the stone will be compacted as a base, use the Crusher Run or Road Base calculator and enter a compaction or yield figure from your supplier. This page does not apply one.

Sources & methodology

Volume is geometry plus unit conversion; weight uses only the bulk density you enter. Sources relevant to this page: