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Gravel Calculator
Calculate gravel volume and weight
Unit System

Recommended: 5-10% for compaction and spillage

Gravel Formula

Volume = Length × Width × Depth

Weight = Volume × Density

Common Gravel Densities
Pea Gravel1680 kg/m³ (105 lb/ft³)
Crushed Stone1500 kg/m³ (94 lb/ft³)
River Rock1550 kg/m³ (97 lb/ft³)
Limestone1650 kg/m³ (103 lb/ft³)
Decomposed Granite1400 kg/m³ (87 lb/ft³)
Recommended Depths
Driveways10-15 cm (4-6 in)
Pathways5-10 cm (2-4 in)
Decorative Areas5-7 cm (2-3 in)
Drainage Base15-30 cm (6-12 in)

Important Note

Results are estimates. Actual gravel requirements may vary due to compaction, site conditions, and settling. Always order 5-10% extra to account for waste and ensure complete coverage.

What is Gravel?

Gravel is a loose aggregation of small rock fragments that has been naturally or mechanically produced. It is one of the most commonly used materials in construction and landscaping projects due to its versatility, durability, and relatively low cost. Gravel comes in various sizes, colors, and types, each suited for different applications.

Common uses of gravel include driveways, walkways, drainage systems, landscaping beds, and as a base material for concrete and asphalt. The type of gravel you choose depends on your specific project requirements, including load-bearing needs, drainage requirements, and aesthetic preferences.

Types of Gravel

Pea Gravel

Small, rounded stones ideal for walkways, patios, and decorative landscaping. Easy to walk on and provides excellent drainage.

Crushed Stone

Angular pieces that compact well, making them ideal for driveways, road base, and construction projects requiring stability.

River Rock

Smooth, rounded stones in various colors. Popular for decorative landscaping, water features, and dry creek beds.

Decomposed Granite

Granite that has weathered into small particles. Creates a natural-looking surface for paths and patios.

Tips for Accurate Estimation
  • Account for compaction: Gravel can compact by 10-20% after installation, so consider ordering extra material.
  • Consider the base: If installing over soft soil, you may need a deeper layer or a fabric barrier.
  • Check delivery options: Gravel is typically sold by the cubic yard or ton. Know your local supplier's pricing method.
  • Plan for edging: Edge restraints help keep gravel in place and maintain clean borders.
  • Factor in irregular shapes: For non-rectangular areas, divide into smaller sections and calculate each separately.
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