Gravel Calculator
Calculate how much gravel, crushed stone, sand or topsoil you need – in cubic yards and tons.
Area
ft
ft
ft
in
$
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Volume and weight
volume = area × depth; weight = volume × density
Example: a 20 × 10 ft area 3 in deep needs 50 ft³ = 1.85 yd³. At 1.6 t/m³, gravel weighs about 2.5 US tons.
Typical densities
| Material | t/m³ | tons per yd³ |
|---|---|---|
| Gravel, crushed stone | 1.6 | about 1.35 |
| Pea gravel | 1.5 | about 1.26 |
| Sand | 1.6 | about 1.35 |
| Topsoil | 1.3 | about 1.1 |
Densities vary with moisture and grading; ask your supplier for their figure.
How deep?
- Garden paths: 2–3 in
- Driveways: 4–6 in over a compacted base
- Drainage and French drains: per design, often 12 in or more
Frequently asked questions
How much does a yard of gravel weigh?
About 1.35 US tons (2,700 lb), depending on the stone.
How much area does a ton of gravel cover?
About 80 ft² at 3 in deep.