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?
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.
What should you read before you order materials?
Field notes from real jobs that explain the numbers behind this calculator.