Crushed stone calculator
Estimate crushed stone for driveways, patios and base layers. Returns yards, tons and cost.
Short answer: cu yd = (L × W × depth/12) ÷ 27. Tons = cu yd × 1.35 (¾" crushed stone). 40 × 12 ft × 4" = 5.9 cu yd ≈ 8 tons. Enter your measurements above and the crushed stone calculator returns the quantity, unit conversions and an estimated cost instantly, in imperial or metric — no sign-up needed.
What do you need to measure?
What is the answer?
Cubic yards
5.93
Tons
8.00
≈ 1.35 t/yd³
Est. cost
$240
How does the crushed stone calculator work?
cu yd = (L × W × depth/12) ÷ 27. Tons = cu yd × 1.35 (¾" crushed stone).
What does a worked example look like?
40 × 12 ft × 4" = 5.9 cu yd ≈ 8 tons.
What do people ask most?
›What depth for a crushed stone driveway?
4" for cars over compacted soil; 6" for trucks or freeze-thaw climates.
›#57 vs ¾" crushed?
#57 stone is ~1–1.5" and drains well; ¾" packs tighter for a firmer surface.
Which yard & landscape calculator should you use next?
Where can you learn more?
Read field notes on estimating and materials, or browse every calculator we make.