Crushed Stone Calculator
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Crushed Stone – Straight Path
Width
Calculation is based on average density of 1700 kg/m³.
Calculation Results
Gravel Volume
0.00 m³
Gravel Weight
0.00 t
Crushed Stone – Curved Path
Calculation is based on average density of 1700 kg/m³.
Calculation Results
Gravel Volume
0.00 m³
Gravel Weight
0.00 t
Crushed Stone – Circular Area
Calculation is based on average density of 1700 kg/m³.
Calculation Results
Gravel Volume
0.00 m³
Gravel Weight
0.00 t
Crushed Stone – Annular Ring
Calculation is based on average density of 1700 kg/m³.
Calculation Results
Gravel Volume
0.00 m³
Gravel Weight
0.00 t
Triangular Crushed Stone Calculator
Weight is calculated on the average pea gravel density of 1700 kg/m³. You can always enter the density manually for customized calculations.
Calculation Results
Gravel Volume
0.00 m³
Gravel Weight
0.00 t
Rectangular Crushed Stone Calculator
Calculation is based on average density of 1700 kg/m³.
Calculation Results
Gravel Volume
0.00 m³
Gravel Weight
0.00 t
What Is Crushed Stone?
Crushed stone is a mechanically broken aggregate made from rock such as limestone, granite, trap rock, or gravel-sized quarry stone. Unlike rounded pea gravel, crushed stone has angular edges that lock together better under load, making it a common material for driveways, base layers, drainage systems, and construction fill.
Its angular shape is the main reason it performs well in structural applications. It compacts more effectively than rounded stone and creates a firmer surface for traffic, pavers, slabs, and foundation support.
Common Uses of Crushed Stone
| Application | Why Crushed Stone Is Used |
|---|---|
| Driveways | Compacts well and handles vehicle loads |
| Patio and paver base | Creates a stable, compactable foundation |
| Drainage trenches | Allows water movement while supporting structure |
| Concrete sub-base | Improves load distribution and reduces settlement |
| Walkways and paths | Provides a durable, compacted surface |
| Retaining wall backfill | Helps with drainage and wall stability |
Crushed Stone Sizes and Typical Uses
| Stone Type / Size | Typical Use |
|---|---|
| Stone dust / screenings | Leveling layer, paver joints, compacted finish |
| 3/8″ minus | Walkways, decorative paths, fine compacted surfaces |
| 3/4″ crushed stone | Driveways, drainage, general base |
| #57 stone | Drainage, concrete base, under decks, foundation areas |
| 1½″ and larger | Heavy drainage, erosion control, large base fill |
Crushed Stone Density and Weight
Crushed stone typically falls around 1,600 to 1,800 kg/m³ depending on rock type, void spaces, and moisture conditions. A default density of 1,700 kg/m³ is a practical estimate for many general crushed stone applications.
Actual delivered weight can vary if the stone is wet, highly compacted, or made from heavier parent rock such as granite or basalt. If your supplier provides a specific tons-per-yard value, use the manual density override for more accurate results.
How Crushed Stone Quantity Is Calculated
Crushed stone quantity is calculated using:
Volume = Area × Depth
The calculators above estimate area based on the selected shape, including straight paths, curved paths, circles, rings, triangles, and rectangles. That volume is then converted into cubic yards, cubic feet, or cubic meters, and finally into weight using the stone density.
Typical Depth Recommendations
| Project Type | Typical Depth |
|---|---|
| Garden path / walkway | 2″ – 4″ |
| Decorative stone area | 2″ – 3″ |
| Driveway surface | 4″ – 6″ |
| Driveway base layer | 4″ – 8″ |
| Drainage trench | 6″ – 12″ |
| Patio / paver base | 4″ – 6″ |
Crushed Stone vs Gravel
| Feature | Crushed Stone | Rounded Gravel |
|---|---|---|
| Particle shape | Angular | Rounded |
| Compaction | Better | Lower |
| Drainage | Good | Good |
| Best for base layers | Yes | Usually no |
| Best for decorative barefoot areas | Less comfortable | More comfortable |
Important Tips When Ordering Crushed Stone
- Choose the stone size based on the job, not just appearance
- Add 5–10% extra for uneven grade, settling, and waste
- Use geotextile fabric beneath stone where soil mixing is a concern
- Compact in layers for base and driveway applications
- Confirm whether your supplier sells by cubic yard, ton, or bulk bag
Where Crushed Stone Should Not Be Used
- Play areas or barefoot zones unless topped with a softer material
- Loose top layers where smooth walking comfort is the main goal
- Projects needing very fine finish sand instead of angular aggregate
FAQs
How much does crushed stone weigh per cubic yard?
It varies by material, but many crushed stones weigh roughly 1.3 to 1.5 tons per cubic yard. The exact value depends on rock type, gradation, and moisture.
Is crushed stone good for a driveway?
Yes. Crushed stone is one of the best driveway materials because its angular particles compact and interlock well under traffic.
What is the difference between crushed stone and #57 stone?
Crushed stone is a broad category. #57 stone is one specific crushed stone size commonly used for drainage, driveways, and base work.
How much extra crushed stone should I order?
Ordering 5–10% extra is common to cover compaction, uneven surfaces, and small losses during spreading.