Gravel Calculator – Accurate Estimator for Volume and Weight
Use this gravel calculator to determine the volume and weight of gravel needed for your project. Whether you're laying a new driveway, filling a garden bed, or creating a path, this tool will help you estimate exactly how much material you’ll need.
Features
- Supports both metric and imperial units
- Calculates volume in cubic yards or meters
- Estimates weight in tons or tonnes
- Gravel density options for loose, compacted, or dense materials
Formulas Used
Imperial: (L × W × D in ft) ÷ 27 = yd³; ft³ × density ÷ 2000 = tons
Metric: (L × W × D in m) = m³; m³ × kg/m³ ÷ 1000 = tonnes
Always round up slightly to account for compaction and surface unevenness. For best results, confirm density with your local supplier.
Common Gravel Calculator Use Cases
- Driveway installations and resurfacing
- Garden bed and planter fill
- Pathways and walkways
- Drainage and French drain systems
- Base layers for patios or sheds
- Erosion control and slope stabilization
Tips for Ordering the Right Amount of Gravel
- Always round up 5–10% to cover compaction and surface variations
- Double-check your required depth based on use case
- Know how your supplier prices (tons or cubic yards/meters)
- Confirm gravel type and density before ordering
Types of Gravel
| Gravel Type | Best For | Typical Size |
|---|---|---|
| Crushed Stone | Driveways, patios, and pathways | 1/4"–1" |
| Pea Gravel | Decorative gardens and walkways | ~3/8" |
| Road Base | Under pavers, heavy-use driveways | Mixed fine & coarse |
| Decomposed Granite | Natural paths, xeriscaping | Very fine |
| River Rock | Decorative landscaping, water features | 1"–3" |
Frequently Asked Questions
Q: How deep should gravel be for a driveway?
A: 3–4 inches is standard; deeper for heavy-duty use.
Q: What’s the difference between a ton and a cubic yard?
A: One cubic yard weighs roughly 1.4 to 1.7 tons, depending on type and moisture.
Q: Can I use this calculator for other materials?
A: Yes, but for more accurate estimates use our Sand Calculator or Stone Calculator.
Q: How many wheelbarrows make up a cubic yard?
A: Approximately 14–15 standard wheelbarrow loads.
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Important Estimate Disclaimer
The results provided by this calculator are intended as general estimates only and should not be considered precise engineering measurements. Actual material requirements, costs, and quantities can vary significantly based on site conditions, local building codes, soil type, reinforcement requirements, climate exposure, and the intended use of your project.
These calculators are designed to help you plan and budget your project more effectively, but they do not replace professional advice from a qualified contractor, engineer, or building inspector. Always verify your calculations and assumptions with trained professionals before placing material orders or commencing construction.
For more information on the assumptions, formulas, and data used in these tools, see our Data Sources and Methodology pages.
Material estimates, cost figures, and volume calculations are approximate and may not reflect your actual requirements. Always double-check dimensions and project-specific needs, and consider adding a contingency allowance for waste, over-excavation, and unforeseen conditions.
If you are unsure about any aspect of your project — including structural requirements, reinforcement needs, drainage, or load-bearing capacity — consult with a licensed professional before proceeding.