Gravel Driveway Calculator
Updated Formulas shown
A durable gravel driveway is built in layers: 4–6 in of compacted base (crusher run or #3 stone) plus 2–3 in of #57 or pea gravel on top. A 100 × 12 ft driveway with 6 in of base needs about 24.4 yd³ — roughly 37 tons.
Road base / crusher run needed
24.44 yd³
36.67 tons at 3,000 lb/yd³
- Weight
- 36.67 tons73,333 lb · 33.26 t
- Cubic feet
- 660 ft³
- Cubic meters
- 18.69 m³
- Area covered
- 1,200 ft²
Densities are typical loose figures; ask your supplier for theirs. Delivery minimums are often 1–3 yd³.
How to use it
- Calculate the base layer first, then run the calculator again at 2–3 in for the top layer.
- Add 10–15% for compaction.
- Most dump trucks carry 10–15 tons per load.
Quick reference
| Area | 4 in deep | 6 in deep | 8 in deep |
|---|---|---|---|
| 50 ft² | 0.62 yd³ · 0.93 t | 0.93 yd³ · 1.39 t | 1.23 yd³ · 1.85 t |
| 100 ft² | 1.23 yd³ · 1.85 t | 1.85 yd³ · 2.78 t | 2.47 yd³ · 3.7 t |
| 200 ft² | 2.47 yd³ · 3.7 t | 3.7 yd³ · 5.56 t | 4.94 yd³ · 7.41 t |
| 300 ft² | 3.7 yd³ · 5.56 t | 5.56 yd³ · 8.33 t | 7.41 yd³ · 11.11 t |
| 500 ft² | 6.17 yd³ · 9.26 t | 9.26 yd³ · 13.89 t | 12.35 yd³ · 18.52 t |
| 1000 ft² | 12.35 yd³ · 18.52 t | 18.52 yd³ · 27.78 t | 24.69 yd³ · 37.04 t |
Related calculators
- Crushed Stone CalculatorCalculate crushed stone for driveways, drainage and paver bases: cubic yards and tons from area and depth.
- Asphalt CalculatorHow many tons of asphalt do you need? Enter area and compacted thickness to get tons of hot-mix asphalt and estimated cost.
- Gravel CalculatorHow much gravel do you need? Enter area and depth to get cubic yards and tons, with cost per ton.
- Cubic Yards to Tons CalculatorConvert cubic yards to tons (and tons to yards) for gravel, sand, topsoil, mulch, concrete and asphalt.
Frequently asked questions
How much does a gravel driveway cost?
Gravel itself runs about $15–$75 per ton in 2026 depending on type and distance, so materials for a 100 ft driveway are typically $800–$2,500 plus delivery and grading.
Your business here? Sponsor this calculator from $13/week. See placements
Estimates only. Check quantities with your supplier or contractor before ordering.