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Gravel, Sand & Aggregate Calculator

Calculate volume in cubic yards/metres + weight in tonnes for gravel, sand, topsoil, mulch, and concrete.

Construction

Gravel, Sand & Aggregate Calculator

Generated on April 25, 2026

Typical: 2-4 inches for landscaping

Crushed stone (¾″ aggregate)
Area
200.0 ft²
Volume
66.67 ft³
Cubic yards
2.47
Cubic metres
1.89
Weight (tonnes)
3.17
Weight (US tons)
3.49
Weight (kg)
3171
Weight (lbs)
6988
50 lb bags
134
Area cross-section
20.0 × 10.0 ft (top view)4″Crushed stone (¾″ aggregate) fill
Number of 50 lb bags (134)
50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb50lb
Showing 30 of 134 bags · ~25 kg / 50 lb each

Step-by-step calculation

Formula

Volume = length × width × depth. Weight = volume × density. 1 cu yd = 0.7646 m³.

  1. 1Area: 20 × 10 = 200.00 ft².
  2. 2Depth: 4 inches = 0.333 ft.
  3. 3Volume: 200.00 × 0.333 = 66.667 ft³.
  4. 4In cubic yards (US convention): 2.469 cu yd.
  5. 5Density of Crushed stone (¾″ aggregate): 1680 kg/m³.
  6. 6Weight: 1.888 m³ × 1680 = 3171 kg = 3.17 tonnes.
Ordering tip: bulk materials are usually sold by weight (tonnes / tons) for large jobs and by cubic yards for landscaping. A typical home pickup truck holds ~1 cubic yard of gravel (about 1.4 tons) — so order accordingly to avoid overweight loads. Add 5-10% extra to account for compaction.

?What is the Gravel, Sand & Aggregate Calculator?

The Gravel, Sand & Aggregate Calculator computes both volume (cubic yards, cubic metres, cubic feet) AND weight (kilograms, pounds, tonnes, US tons) for any landscaping or construction job. Supports rectangle and circle area shapes, depths in inches (typical for landscaping), and 10 common materials with their actual densities — pea gravel, crushed stone, river rock, sand (fine/coarse/wet), topsoil, mulch, concrete, and asphalt. Essential when ordering by weight (concrete suppliers) or by volume (landscaping yards).

The Formula

Volume = area × depth. Area = L × W (rectangle) or π × (D/2)² (circle). Weight = volume × material density. 1 cubic yard = 0.7646 m³.

Material densities vary widely: pea gravel and dry sand are ~1,700 kg/m³ (≈ 2,865 lb/cu yd); concrete is much denser at 2,400 kg/m³ (≈ 4,050 lb/cu yd); mulch is light at ~350 kg/m³ (≈ 590 lb/cu yd). Wet sand is significantly heavier than dry — adds water weight. For ordering: small jobs (≤ 1 cu yd) by bag; medium jobs (1-5 cu yd) by pickup-truck delivery; large jobs by dump-truck delivery (typically 10-20 cu yd loads).

Practical Examples

1

20×10 ft area, 4 inches deep, crushed stone: 67 ft³ = 2.5 cu yd = 1.9 m³ → 3.2 tonnes.

2

Circular fire pit base, 8 ft diameter, 6 inches of pea gravel: 25 ft³ = 0.93 cu yd → 1.3 tonnes.

3

Landscape mulch refresh: 1,000 sq ft area × 2 inches deep = 6.2 cu yd of mulch (light material).

4

Concrete slab 12×12 ft × 4 inches: 48 ft³ = 1.78 cu yd → 4.3 tonnes of concrete.

5

A typical pickup truck holds ~1 cu yd of gravel (about 1.4 short tons) — don't overload!

Frequently Asked Questions

Bulk material is sold by different units in different markets: cubic yards (US/Canada), cubic metres (most other places), tonnes (large jobs by weight), and bags (small DIY jobs). Showing all the units lets you order from any supplier without re-doing the math.

Popular Conversions

Jump to a ready-made conversion — useful for quick reference and sharing:

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