Gravel Calculator
Calculate gravel volume, weight and cost with multiple unit options
Length of the area you want to cover with gravel
Width of the area you want to cover with gravel
Desired depth of the gravel layer
Typical gravel density is 1,680 kg/m³
Calculation Results
Volume of gravel needed (m³)
Weight of gravel needed (t)
Total estimated cost
Gravel Calculator – Estimate Volume, Weight & Cost for Any Project
Whether you’re building a path, filling a driveway, or laying the foundation for a landscaping project, our gravel calculator helps you estimate the exact amount of gravel you’ll need, plus its cost. Just enter your area dimensions, gravel depth, and material density to get fast, reliable results with our gravel calculator.
How to Use the Gravel Calculator
To calculate how much gravel you’ll need, input the following:
- Project area (length × width)
- Desired depth of gravel (typically 2–4 inches)
- Gravel density (pre-filled with average values)
- Optional: price per ton or cubic yard
The calculator will estimate:
- Total volume of gravel required
- Weight in tons or kilograms
- Approximate material cost
Labor, delivery, or installation fees are not included—this is a material-only estimate.
Gravel Size Classifications
Gravel is categorized based on the size of its particles. Common standards include:
- Udden-Wentworth Scale:
- Granular gravel: 2–4 mm
- Pebble gravel: 4–64 mm
- ISO 14688:
- Fine gravel: 2.0–6.3 mm
- Medium gravel: 6.3–20 mm
- Coarse gravel: 20–63 mm
Different projects require different types and sizes of gravel, so always match the gravel type to your application.
Common Uses for Gravel
Gravel is one of the most versatile construction materials. It’s used for:
Construction
- Concrete aggregates
- Road base and driveways
- Pipe bedding and drainage layers
- Asphalt mixtures and foundations
Landscaping & Decorative Uses
- Garden beds and borders
- Walkways and patios
- Erosion control
- Xeriscaping and low-maintenance yards
Agriculture & Water Filtration
- Poultry grit and mineral feed
- Water filtration media (removes suspended solids—not chemicals)
- Agricultural lime (pulverized gravel to reduce soil acidity)
Types of Gravel
Bank Gravel
Natural mix of gravel, sand, and clay—ideal for filling and foundation support.
River Rock
Smooth, rounded stones from riverbeds. Used decoratively in landscaping and water features.
Pea Gravel
Small, rounded stones about the size of a pea. Popular for walkways, driveways, and aquariums.
Crushed Stone
Mechanically crushed rock (like limestone or granite). Used for driveways, concrete base layers, and construction fill.
Pay Gravel
Gravel with traces of valuable metals like gold. Mostly used in prospecting.
FAQs
How much gravel do I need?
Use the calculator to determine volume by multiplying area by desired depth, then adjust for gravel density.
What is gravel typically made from?
Gravel can consist of natural rock fragments or mechanically crushed stone like granite, limestone, or dolomite.
Can I use gravel for drainage?
Yes—gravel is excellent for drainage due to the gaps between particles that allow water to pass through easily.
Is crushed stone the same as gravel?
Not quite. Crushed stone is mechanically processed, whereas true gravel is usually naturally eroded and smoother.
Try out our Gravel Calculator now!
Read more guideline here:
- U.S. Geological Survey on Construction Aggregates
- Landscaping with Gravel (Better Homes & Gardens)
- ASTM Standards for Aggregates