Gravel Calculator

Calculate how much gravel you need in tons or cubic yards for driveways, pathways, drainage, and landscaping projects.

Area Dimensions

Length

feet

Width

feet

Depth

Gravel Type

Select Gravel

Crushed Stone: Versatile, compacts well, great for driveways and pathways

Price per Ton

Delivery Fee

Project Type

Application

Quick Facts

Standard Driveway Depth

4-6 inches

For regular vehicle traffic

Crushed Stone Weight

~2,800 lbs/cu yd

1.4 tons per cubic yard

Dump Truck Capacity

10-12 tons

Standard delivery load

Waste Factor

+10%

Included in calculations

Your Results

Calculated

0 Tons Crushed Stone for Driveway

Area

0 sq ft

Volume

0 cu yd

With 10% Waste

0 cu yd

Exact Weight

0 tons

Depth

0 inches

Gravel Density

0 tons/cu yd

Cost Estimate

Material (0 tons @ $35/ton): $0.00

Delivery Fee: $0.00

Total Estimated Cost: $0.00

Cost per Square Foot: $0.00/sq ft

Delivery Note A standard dump truck typically holds 10-12 tons.

Installation Tips

Install landscape fabric to prevent weeds
Use edging to contain loose gravel
Rake level for even coverage

Understanding Gravel Calculations

Gravel is sold by the ton or cubic yard, with weight being the most common unit for delivery. Different types of gravel have different densities, so it is important to select the correct gravel type for accurate calculations. This calculator factors in the specific weight of your chosen gravel type.

Gravel Type	Size	Weight (lb/cu yd)	Best Use	Notes
Pea gravel	1/8"–3/8"	~2,700 lb/cu yd	Walkways, play areas, decorative landscaping	Smooth, rounded; comfortable underfoot
Crushed stone (#57)	3/4"	~2,700 lb/cu yd	Driveways, drainage, base layer	Most common; good drainage
Crushed stone (#411)	Mixed fines	~2,900 lb/cu yd	Road base, compactable sub-base	Compacts well; good for driveways
River rock	1"–6"	~2,800 lb/cu yd	Decorative landscaping, dry creek beds	Smooth; doesn't compact
Crushed granite	3/4"–1.5"	~2,900 lb/cu yd	Driveways, paths	Angular; compacts well
Lava rock	Varies	~1,500 lb/cu yd	Landscaping, mulch alternative	Lightweight; good drainage; porous
Pea gravel (large)	1/2"–1"	~2,800 lb/cu yd	Driveways, pathways	Less stable than smaller sizes
Sand/gravel mix	Varies	~3,000 lb/cu yd	Concrete mixing, fill	Varies by mix ratio
Note: Weight varies by moisture content and specific stone type. Standard bulk estimates use ~2,800–3,000 lbs per cubic yard. One ton of gravel covers approximately 80–100 sq ft at 2" depth or 50–65 sq ft at 3" depth. Always order 5–10% extra for waste and settling.

Area (sq ft)	1" Depth	2" Depth	3" Depth	4" Depth
100 sq ft	0.31 cu yd / 0.42 tons	0.62 cu yd / 0.84 tons	0.93 cu yd / 1.26 tons	1.23 cu yd / 1.67 tons
200 sq ft	0.62 cu yd / 0.84 tons	1.23 cu yd / 1.67 tons	1.85 cu yd / 2.50 tons	2.47 cu yd / 3.34 tons
300 sq ft	0.93 cu yd / 1.26 tons	1.85 cu yd / 2.50 tons	2.78 cu yd / 3.76 tons	3.70 cu yd / 5.00 tons
500 sq ft	1.54 cu yd / 2.08 tons	3.09 cu yd / 4.17 tons	4.63 cu yd / 6.25 tons	6.17 cu yd / 8.33 tons
750 sq ft	2.31 cu yd / 3.12 tons	4.63 cu yd / 6.25 tons	6.94 cu yd / 9.37 tons	9.26 cu yd / 12.5 tons
1,000 sq ft	3.09 cu yd / 4.17 tons	6.17 cu yd / 8.33 tons	9.26 cu yd / 12.5 tons	12.35 cu yd / 16.7 tons
2,000 sq ft	6.17 cu yd / 8.33 tons	12.35 cu yd / 16.7 tons	18.52 cu yd / 25.0 tons	24.69 cu yd / 33.3 tons
Note: Calculated using standard gravel weight of 2,700 lbs/ton (1.35 tons per cubic yard). Formula: Cubic yards = (Length × Width × Depth in inches ÷ 12) ÷ 27. Multiply cubic yards by 1.35 to get tons. Add 10% for waste. Delivery is typically sold by the ton; bags are typically 0.5 cu ft each (you'd need ~54 bags for 1 cubic yard).

Purchase Method	Quantity	Approx. Cost	Cost per Ton	Best For
Bag (50 lb)	50 lbs = 0.019 tons	$4–$7/bag	$210–$370/ton	Very small projects; exact quantities
Bag (0.5 cu ft)	~50 lbs	$4–$7/bag	$210–$370/ton	Repair work; top-off quantities
Bulk delivery (local)	1 ton minimum	$30–$60/ton delivered	$30–$60/ton	Projects requiring 2+ tons; cost-effective
Bulk pickup (quarry)	1 ton minimum	$10–$30/ton	$10–$30/ton	Cost-effective; requires truck/trailer
Large bulk delivery	10+ tons	$20–$40/ton delivered	$20–$40/ton	Large driveways, commercial projects
Colored/decorative gravel	Varies	$100–$300+/ton	$100–$300+/ton	Landscaping aesthetics
Note: Delivery typically adds $50–$100 per load (usually 10–15 tons per truck). Bags from home improvement stores (Lowe's, Home Depot) are 8–12× more expensive per ton than bulk — use bulk delivery for any project over ~1 ton. Prices vary significantly by region; quarry-direct pickup can be 50–70% cheaper than retail bags.

Gravel Types and Uses

Gravel Type	Size	Best Uses
Pea Gravel	3/8"	Pathways, patios, drainage
Crushed Stone	Varied	Driveways, general fill
57 Stone	3/4" - 1"	Drainage, pipe bedding
Crusher Run	Mixed	Driveway base, compacts well
River Rock	1" - 3"	Landscaping, dry creek beds
Decomposed Granite	Fine	Pathways, xeriscaping

Recommended Depths by Application

Application	Recommended Depth	Notes
Landscaping/Beds	2-3 inches	Decorative purposes
Pathways	3-4 inches	Foot traffic only
Residential Driveway	4-6 inches	Regular vehicle traffic
Heavy Traffic Areas	6-8 inches	Commercial or heavy loads
Sub-base	8-12 inches	Under concrete/asphalt

Gravel Weight Reference

Different gravel types have different weights per cubic yard:

Pea Gravel: ~2,800 lbs/cubic yard
Crushed Stone: ~2,800 lbs/cubic yard
River Rock: ~2,700 lbs/cubic yard
Road Base: ~3,000 lbs/cubic yard
Limestone: ~3,000 lbs/cubic yard

Gravel Installation Tips

Prepare the base by removing vegetation and leveling the ground
Use landscape fabric to prevent weeds and stabilize loose gravel
For driveways, install edging to contain the gravel
Compact crusher run and road base for stability
Order 10% extra to account for settling and spreading
Consider a layered approach: large base stone, topped with finer gravel

Frequently Asked Questions

How accurate are the results?

The Gravel applies a standard formula to your inputs — accuracy depends on how precisely you measure those inputs. For planning and estimation, results are reliable. For high-stakes or professional decisions, cross-check the output with a domain expert or primary source.

Can I use this on mobile?

Yes — the calculator is designed to work on any device. For complex multi-input calculations on small screens, landscape orientation gives more room to see all fields and results simultaneously.

Practical Guide for Gravel Calculator - Calculate Tons Needed for Your Project

Gravel Calculator - Calculate Tons Needed for Your Project is most useful when the inputs reflect the situation you are actually planning around, not a best-case estimate. Treat the result as a decision aid: it gives you a structured way to compare assumptions, spot outliers, and decide what to verify next. For Other work, the most important review lens is baseline behavior, time cost, throughput, constraints, friction, and the decision threshold you care about.

Start with a baseline run using values you can defend. Then change one assumption at a time and watch which output moves the most. If one input dominates the result, spend your verification time there first. If several inputs have similar influence, use a conservative scenario and an optimistic scenario to create a practical range instead of relying on a single exact number.

Before acting on the result, compare the result with recent real-world data instead of ideal targets or one-off examples. This is especially important when the calculator supports a purchase, project plan, performance target, or operational decision. The calculator can make the math consistent, but the quality of the conclusion still depends on current data, clear units, and assumptions that match your real constraints.

Review Checklist

Confirm every input uses the unit and time period requested by the calculator.
Run a low, expected, and high scenario so the answer has a useful range.
Check whether rounding or a missing decimal place changes the decision.
Update the calculation after each meaningful workflow, schedule, cost, or usage change.

Frequently Asked Questions

How much gravel do I need?

The amount of gravel you need depends on the area dimensions and desired depth. Formula: Volume (cubic yards) = Length (ft) × Width (ft) × Depth (inches) ÷ 12 ÷ 27. Then convert to tons: Tons = Cubic yards × 1.35 (using standard gravel weight of ~2,700 lbs/cubic yard). Quick examples: 10 × 10 ft area (100 sq ft) at 2" depth: 100 × 2 ÷ 12 ÷ 27 = 0.62 cubic yards = 0.84 tons. 20 × 50 ft driveway (1,000 sq ft) at 3" depth: 1,000 × 3 ÷ 12 ÷ 27 = 9.26 cubic yards = 12.5 tons. Standard depth guidelines: decorative landscape: 1–2 inches. Driveways: 3–4 inches (often in two layers: 4" base layer + 2" surface layer). Play areas: 3–4 inches (deeper for shock absorption). Drainage: 3–6 inches. Pathway / walkway: 2–3 inches. Always add 5–10% extra to account for: uneven terrain (base layer). Compaction (gravel settles 5–15% after compaction). Waste and overage. Edges and borders. If your space is irregular, divide it into rectangles, calculate each section separately, then add the totals.

How many tons of gravel do I need for a driveway?

Driveway gravel calculation depends on length, width, and depth. Typical driveway specs: standard driveway width: 10–12 feet (single car), 20–24 feet (double). Standard driveway depth: 4 inches (minimum); 6 inches recommended for heavy vehicles. Typical driveway lengths: 20–50 feet (residential). Step-by-step example — 12 × 40 ft driveway at 4" depth: 12 × 40 = 480 sq ft. 480 × 4" ÷ 12 ÷ 27 = 5.93 cubic yards. 5.93 × 1.35 = 8.0 tons. Add 10% waste = 8.8 tons (order 9 tons). 200 ft long × 12 ft wide driveway: 200 × 12 × 4" ÷ 12 ÷ 27 = 29.6 cubic yards = 40 tons. Best gravel types for driveways: base layer: crushed stone #411 or recycled concrete — compact well. Surface layer: #57 crushed stone or crushed granite — better drainage and stability. Avoid: pea gravel (shifts easily, tracks into garage/house). River rock (doesn't compact, rolls around). Budget guide: 100 ft × 12 ft driveway: approximately 20–25 tons for a 4" layer. At $40/ton delivered: $800–$1,000 just for material. Add installation: $500–$1,500 depending on whether you DIY or hire. Consider edging and borders to keep gravel contained.

How much does a yard of gravel weigh?

One cubic yard of gravel typically weighs approximately 2,700–3,000 pounds (1.35–1.5 tons), depending on the type of gravel and its moisture content. Common weights: pea gravel: ~2,700 lbs/cubic yard. Crushed stone (#57): ~2,700–2,800 lbs/cubic yard. River rock: ~2,800 lbs/cubic yard. Crushed granite: ~2,900 lbs/cubic yard. Lava rock: ~1,500 lbs/cubic yard (much lighter — porous). Sand/gravel mix: ~3,000 lbs/cubic yard. A standard dump truck delivers 10–14 tons (7–10 cubic yards) per load. The conversion: 1 cubic yard ≈ 1.35 tons. 1 ton ≈ 0.74 cubic yards. Gravel is sold in two ways: by weight (tons) at bulk suppliers and quarries. By volume (cubic yards) at some suppliers. If your supplier quotes by the cubic yard and you need to convert: your calculation in tons × 0.74 = cubic yards needed. Why this matters: pickup trucks can typically carry 1–1.5 tons (0.75–1 cubic yard) per load without damaging the suspension. A one-ton load of gravel fills roughly half the bed of a standard half-ton pickup. For anything more than 2 cubic yards (3 tons), arrange delivery by dump truck. The math for buying bags: a standard 50 lb bag = 0.019 cubic yards = ~0.025 tons. One cubic yard requires approximately 54 bags of 50 lbs each. At $5/bag: $270 per cubic yard — vs. $30–$60/ton bulk. Buy in bulk for any project over 0.5 cubic yards.

What depth of gravel do I need for a driveway or pathway?

Depth requirements vary by application: Driveways: new construction: 6–8 inches total (4" compacted base layer + 2–4" surface layer). Refreshing existing gravel driveway: 2–3 inches top dressing. Over unstable or clay soil: 8–12 inches (additional base required). Pathways and walkways: decorative/foot traffic only: 2–3 inches. Compacted pathway: 3–4 inches. Landscaping and garden beds: decorative ground cover: 1–2 inches (just for coverage). Weed suppression: 2–3 inches (lay landscape fabric first for better weed control). Drainage: French drain filling: 6–12 inches or more. Drainage swale: 3–6 inches. Play areas: children's play area (for fall protection): 3–4 inches minimum (CPSC recommends 6" for some equipment). Driveways — two-layer approach: layer 1 (base): larger crushed stone (#411 or recycled concrete), 4 inches deep, compacted. Layer 2 (surface): #57 crushed stone or pea gravel, 2 inches deep. This provides better drainage and stability than a single deep layer. Compaction note: gravel compacts 10–15% after being driven over. A 4" loose layer becomes ~3.4" compacted. For driveways, account for this compaction when ordering — a 4" finished depth may require ordering material for a 4.5–5" loose depth.