Driveway Gravel Calculator
Calculate how much gravel you need for a driveway, path, patio base, or drainage layer. Depth pre-fills from application type — adjust and override as needed.
Part of the Landscaping & Site Work calculators — see all tools in this category.
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How it works and assumptions
This calculator estimates gravel quantity for driveways, paths, patio bases, and drainage layers using length, width, and depth.
- Enter dimensions: Driveway length and width in metres. Area (m²) is calculated automatically.
- Select application type: Driveway, path, patio base, drainage, or garden bed. Depth pre-fills to the recommended value — you can adjust it.
- Select material: Choose your aggregate. Road base is typical for driveways; pea gravel for paths and decorative areas.
- Set waste factor: 10% is standard. Add more for irregular shapes or difficult access.
- Toggle units: Switch volume between m³ and yd³, and weight between kg and lbs independently.
Formula: Area = Length × Width; Volume = Area × Depth (m); Weight = Volume × Density