Why can two gravel types have different weights?

Bulk density changes with stone type, grading, void space, moisture and compaction. Use a supplier-provided density for the material being ordered.

How do I convert cubic feet to cubic yards?

Divide cubic feet by 27. Suppliers may round delivery quantities, so confirm their minimum and increment.

Does the depth mean loose or compacted depth?

Enter the finished compacted depth. The additional allowance can help with handling or settlement, but the supplier should advise on the material's compaction behavior.

Can I use this for multiple layers?

Yes, but calculate each layer separately because different materials can have different depths and densities.

Home project calculator

Gravel Calculator

Estimate gravel volume and weight for rectangular or circular areas using an editable material density and allowance.

Live estimate

Enter project measurements

Area shapeLengthftWidthftFinished depthinBulk densitylb/ft³Allowance%

Estimated gravel weight

1.58 US tons

Weight is only as accurate as the entered bulk density.

Order volume: 1.17 yd³
Cubic feet: 31.5 ft³
Weight: 3,150 lb
Metric weight: 1.43 t

Transparent calculation

Formula used

Weight (lb) = area (ft²) × depth (ft) × density (lb/ft³)

Volume is calculated first. Weight depends on bulk density, which changes with material type, particle size, moisture and compaction.

Worked example

A 12 × 10 ft area at 3 inches deep contains 30 ft³, or 1.11 yd³. At 100 lb/ft³, that is approximately 1.50 US tons before allowance.

How to use this estimate

1Measure the finished length and width, or the diameter of a circular area.
2Enter the compacted layer depth.
3Use the supplier's bulk density when available.
4Confirm whether the supplier sells by weight or by volume.

Gravel Calculator FAQs

Answers to the most common measurement and ordering questions.