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Aggregates Calculator

Aggregates Calculator

Calculate how much aggregate you need from length × width × depth (or enter a volume), then convert to tonnes and approximate bag quantities.
Densities are typical estimates and vary by supplier and moisture.

Notes: This is an estimator. Densities and bag sizes vary by supplier. Always round up to allow for compaction and trimming.

Aggregates Calculator – Estimate How Much Aggregate You Need

Our Aggregates Calculator helps you accurately estimate the amount of aggregate required for your project. Whether you’re laying a driveway, preparing foundations, or working on landscaping, this tool provides reliable calculations so you can order the correct quantity. Simply enter your area dimensions and required depth to reduce waste and keep costs under control.

Choosing the Right Aggregate

The amount of aggregate needed depends on the size of the area, depth, and type of material selected. Different aggregates — such as gravel, MOT Type 1, sand, or decorative stone — vary in weight and coverage. Choosing the right aggregate ensures proper drainage, stability, and a long-lasting finish.

With precise estimates and easy inputs, this calculator helps you plan efficiently, avoid overordering, and manage your project costs with confidence.

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