Gravel Calculator 2026: Estimate Tons, Yards & Cost US units
Calculate gravel for driveways, pathways, french drains, or fish tanks. Get cubic yards, tons, and total cost – updated for 2026 US gravel densities and material trends.
Gravel Volume & Tonnage Calculator
Enter your project dimensions and gravel type. Works for driveways, patios, or base fill. Pro tip: add 5-10% extra for compaction.
Density average 1.4 tons/yd³; gravel calculator in tons uses that base. Adjust type above. Always order 5–10% extra for settling.
Aquarium Gravel Calculator (Fish Tank)
Estimate pounds of substrate for freshwater or planted tanks. US standard: 1 cubic inch ≈ 0.055 lbs (average aquarium gravel).
*Approximation based on typical dry gravel density; for planted aquariums, 2-3 inches recommended.
How to Calculate Gravel for Your Project: 2026 Guide
Whether you need a gravel driveway calculator or want to know how much gravel do I need calculator for landscaping, the formula is straightforward: Volume (cubic yards) = (Length × Width × Depth in feet) ÷ 27. Then multiply by density (tons/yd³) to get tonnage. Our gravel calculator in yards and tons does the heavy lifting. Below we break down common scenarios.
Step-by-Step: Calculating Gravel for Driveway
- Measure area: length × width (feet). Example: 40 ft × 12 ft = 480 sq ft.
- Depth in feet: 4 inches ÷ 12 = 0.333 ft.
- Cubic feet: 480 × 0.333 = 160 cu ft.
- Cubic yards: 160 ÷ 27 = 5.93 yd³.
- Tons: multiply by gravel density (1.4) → 8.3 tons.
- ✓ Compaction factor: add 5–10% extra for driveways (settlement).
- ✓ Base layer: for heavy traffic, use #57 stone then pea gravel top.
- ✓ French drains: use clean crushed stone (¾”), calculate with 20% void space.
- ✓ Gravel coverage: 1 ton covers ~80-100 sq ft at 2” depth.
- ✓ Delivery: most US suppliers quote per ton – our calculator gives exact tons needed.
Gravel Types & Density Reference Table
| Gravel type | Common use | Tons per cubic yard | Coverage (2" depth, sq ft per ton) |
|---|---|---|---|
| Pea Gravel | Pathways, dog runs, gardens | 1.35 | ~105 sq ft |
| #57 Crushed Stone | Driveway base, drainage | 1.45 | ~95 sq ft |
| Crushed Limestone | Road base, gravel roads | 1.5 | ~92 sq ft |
| River Rock | Landscape accents | 1.25 | ~110 sq ft |
| ¾” Gravel | French drain, driveway top | 1.4 | ~100 sq ft |
Use the gravel tonnage calculator above – switch density to match your material. For commercial projects, we also offer 57 gravel calculator and limestone gravel calculator presets.
Gravel Cost Estimator & Yardage Tips (US 2026)
Typical gravel cost per ton ranges from $35 to $80 depending on region and type. Pea gravel often $45–$70/ton, while crushed limestone $40–$65/ton. Our gravel cost calculator above incorporates current market trends. To convert cubic yards to tons quickly: yd³ × density = tons. Always confirm with local supplier.
Common gravel calculator queries answered
- How much gravel for a 20x20 driveway? At 4” depth → ~4.94 cubic yards (~6.9 tons).
- Gravel calculator for french drain: length × width of trench × depth, add 10% overflow.
- Calculator for gravel by the ton vs yard: we support both; tons = yards × density.
For landscape projects, the pea gravel calculator (1.35 tons/yd³) gives precise estimates for walkways and patios.
Frequently Asked Questions – Gravel Calculator
Use our shape selector (circle) above: area = π × radius², depth in inches, then cubic yards. Perfect for fire pits or round patios.
Cubic yards measure volume; tons measure weight. Our gravel calculator in tons uses density (1.4 avg) to convert automatically. Always confirm density with your supplier.
Yes! We included a dedicated fish tank gravel calculator above. Input tank dimensions and depth to get pounds needed.
At 2 inches depth, one ton covers ~100 sq ft. At 4 inches, around 50 sq ft. Use our coverage feature for precise numbers.
We recommend adding 5-10% extra, especially for driveways. Our results are based on loose volume; compaction reduces depth after rolling.
The tonnage formula is timeless; we updated density values to reflect typical US aggregates. Cost field lets you input your local price per ton.
Use the average length and width; for deep areas measure the deepest point. Add 15% extra material to account for irregular fill.