🪨 Gravel Driveway Calculator

Best Gravel for Driveways

Crusher Run / #57 Stone — Best Overall

Angular stones that lock together when compacted, creating a firm surface. Excellent drainage and long-lasting durability. The top choice for most residential driveways.

Pea Gravel — Decorative but Shifts

Smooth, rounded stones that look attractive but tend to shift underfoot and under tires. Requires sturdy edging to stay in place. Better suited as a top layer over a compacted base.

River Rock — Not Ideal for Driveways

Too round and smooth for driveways — stones move under tire weight and never lock together. Best reserved for decorative landscaping, not traffic areas.

Base Layer Tip

Gravel Driveway Cost

These are planning ranges, not quotes. Aggregate pricing moves with region, quarry haul distance, fuel and the local labor market, and it moves fast — the same stone can differ by half between a quarry 10 miles away and one 40 miles away. Figures reflect typical US pricing as of 2026. Treat them as a starting point for a conversation with your local stone yard, not a number to hold anyone to.

Cost per ton and per cubic yard delivered

Bulk stone is sold by weight almost everywhere in the US, and common driveway grades run $25–$50 per ton delivered. At roughly 1.4 tons per cubic yard, that works out to about $35–$70 per cubic yard delivered. Decorative stone runs higher.

The last row is the reason nobody bags a driveway. Fifty-four half-cubic-foot bags make one cubic yard, so bagged stone costs several times the bulk price and takes a full day to haul and open. Bags make sense for patching a pothole or topping up a 20 ft path — nothing larger.

Cost per square foot of driveway

Stone cost per square foot depends entirely on depth, because you are buying volume. Using the same 1.4 tons per cubic yard the calculator uses:

• 4 inches deep: 1.73 tons per 100 sq ft → roughly $0.45–$0.85 per sq ft in stone
• 6 inches deep: 2.59 tons per 100 sq ft → roughly $0.65–$1.30 per sq ft in stone
• 8 inches deep: 3.46 tons per 100 sq ft → roughly $0.85–$1.75 per sq ft in stone

Stone alone is not the whole materials bill. Add geotextile fabric at $0.20–$0.50 per sq ft, edging at $2–$6 per linear foot if you use it, and any short-load delivery surcharge. A complete DIY materials package for a properly built driveway lands at $1–$3 per square foot. Hiring it out — excavation, grading, fabric, placement and compaction included — runs $3–$7 per square foot.

What a full build costs by driveway size

The "stone only" column is the raw material for a 6-inch build at $25–$50 per ton. It is the number you can control. The installed column is what a contractor charges to hand you a finished driveway, and on anything past about 200 linear feet the gap between the two is large enough that most rural owners buy the stone and hire only the machine work.

Delivery and haul distance — the hidden cost driver

Stone is heavy and cheap, so trucking is a large share of what you pay. Two orders of the same material from the same quarry can differ by 40% purely on distance and load size.

• Load size matters more than people expect. A tandem-axle dump truck carries roughly 12–16 tons and a tri-axle 16–22 tons. A 5-ton order pays nearly the same trucking as a 15-ton order, so the per-ton price on a partial load is far worse. If you are within a few tons of a full load, round up.
• Most yards include delivery within a radius — commonly 10–20 miles — then add either a flat fee per load or a per-loaded-mile charge beyond it. Ask how the radius is measured and where the break points are before you pick a supplier.
• Pick-up saves money only on tiny jobs. A half-ton pickup legally carries well under a ton of stone. Ten trips to save a delivery fee is a bad trade.
• Access decides placement cost. If the truck can back down the drive and spread as it dumps, you get the stone roughly where you want it. If it has to pile everything at the road, you are paying for a skid steer or a very long weekend with a wheelbarrow.
• Ask about a minimum. Many quarries will not deliver under 3–5 tons at all, and some price small loads as a flat trip charge.

DIY vs hiring a grading contractor

A gravel driveway is one of the few driveway types a homeowner can genuinely build. The question is whether your site needs machine work.

DIY makes sense when there is already a stable base and you are adding depth, when the drive is short and level, and when the truck can dump where the stone needs to go.

Hire it out when you are building over topsoil or clay, when the drive has any real grade, when drainage has to be cut or a culvert set, or when the job is long enough that spreading by hand is measured in days rather than hours. Excavating and grading is the part where a machine is not a luxury — it is the difference between a driveway and a rut.

How Many Inches of Gravel Does a Driveway Need?

Depth is set by what drives on it and by what is underneath it, not by preference. Every figure below is compacted depth — the depth you have after rolling, not the depth of the loose pile that came off the truck.

Notice that the jump from a car driveway to a truck driveway is a doubling, not a small step. A 4-inch drive that is fine under a sedan will pump and rut the first time a loaded delivery truck turns on it in wet weather.

Base course vs surface course

A driveway is two different materials doing two different jobs, and treating it as one layer of "gravel" is the most common way to waste money.

• Base course — larger angular stone, #2 or #3 on soft ground, or crusher run on firm ground. Its job is to spread the wheel load over the subgrade. It is placed and compacted in 2-inch lifts. Skimping here shows up as ruts within a season.
• Surface course — 2 inches of crusher run / #411. Its job is to lock together into a driving surface and shed water. It contains stone dust, which is exactly what makes it bind.

Washed stone like #57 has the fines screened out, so it drains beautifully and never locks together. It belongs under a slab or in a drain, not on top of a driveway. If you want a decorative finish, lay 1–2 inches of pea gravel or decorative stone over a fully compacted crusher run base and accept that you will be raking it.

Do not use sand as a driveway base. Sand has no load-bearing value under traffic and will pump up through the stone. Bedding sand is for setting pavers — see the sand calculator if that is what you are planning instead.

Ordering for compaction

Compactable material loses depth when you roll it. Crusher run, #411 and quarry base typically settle 15–25% from loose to compacted, so a finished 6-inch layer needs roughly 7–7.5 inches of loose stone. Washed and rounded stone like #57 and pea gravel does not compact meaningfully, so no allowance is needed there.

The calculator on this page works one layer at a time. For a layered driveway, run it once for the base and once for the surface, using each layer's own depth and stone type, then add the tons together. Add your compaction allowance to the compactable layers only.

For depth guidance on paths, patios and drainage rather than driveways, the full gravel calculator has a coverage table by depth.

How to Measure a Driveway That Isn't a Rectangle

Almost no real driveway is a clean rectangle. There is a flare at the road, a widened parking area, a curve around a tree, or a turnaround at the top. The fix is always the same: break the shape into pieces you can measure, work out each area, and add them up.

Working through an irregular drive

1. Sketch it roughly to scale. Paper and a pencil beat memory every time. Mark the road end, the parking area and any turnaround.
2. Cut it into rectangles. Draw lines across the drive wherever the width changes. Each strip becomes a rectangle you can measure and multiply.
3. Handle curves with an average width. Measure the width at three or four points along the curve, average them, and multiply by the length along the centreline of the curve — not the inside or outside edge, both of which are wrong.
4. Measure round turnarounds as a circle. Area is 3.14 × radius², or 0.785 × diameter² if the diameter is easier to pace. A 40 ft circle is about 1,260 sq ft — often more area than the entire driveway leading to it.
5. Do not forget the apron. The flare where the drive meets the road is typically 50–150 sq ft and is the single most commonly missed piece.
6. Add 5–10% for spill and edges. Stone does not stop at a vertical line; it feathers out at the sides. Ordering the exact calculated tonnage leaves you short.

Practical ways to get the numbers

• Measuring wheel — $30–$60 and by far the fastest tool for a long drive. Walk it once each way and average.
• 100 ft tape — accurate but needs two people on anything long, and it sags.
• Pacing — calibrate first by pacing a known 50 ft, then divide. Most adults pace 2.4–2.8 ft. Good enough for a stone order, not for edging.
• Satellite measurement — mapping tools and county GIS parcel viewers both have a measure-area tool. On a driveway with clear edges this gets within a few feet, and it is the only practical option for a quarter-mile drive.

Once you have the total square footage, drop it into the calculator above as a single rectangle — for example, 1,240 sq ft entered as 124 ft long by 10 ft wide. The tonnage only depends on the area and depth, not on the shape. For more area shapes and a step-by-step walkthrough, use the square footage calculator.

Gravel Driveway Maintenance and What It Costs Each Year

This is the honest trade-off against concrete. A gravel driveway is cheap to build and never free to keep. Budget for it up front and the surface lasts indefinitely; ignore it for five years and you are rebuilding.

What actually goes wrong

• Loss of crown. Traffic pushes stone from the center to the edges. Once the middle is flat or dished, water runs down the drive instead of off it, and everything else follows.
• Potholes. Almost always a drainage symptom. Water sits, the base softens, a tyre pumps the fines out.
• Washboarding. The ripples on the approach to a stop. Caused by acceleration and braking on a loose, dry surface — the fix is regrading plus a surface that actually binds.
• Stone migration. Every turn throws stone onto the lawn. Edging slows it; nothing stops it entirely.

The maintenance schedule

• Drag or grade, once or twice a year. Spring after thaw is the important one. This pulls stone back into the wheel tracks and restores the crown. A tow-behind driveway drag is $200–$600 to buy outright and pays for itself in two visits; a contractor charges roughly $150–$400 per visit for a residential drive, more for long rural ones.
• Top up the surface course every 2–4 years. A light top-dressing in the wheel tracks is roughly 1 ton per 100 linear feet. A full 1-inch resurfacing of a 12 ft wide drive is closer to 5 tons per 100 linear feet.
• Fill potholes properly, as they appear. Square the hole out, remove the soft material, fill with crusher run in lifts and compact each one. Tipping loose stone into a wet hole buys you about two weeks.
• Clear ditches and culverts annually. The cheapest maintenance there is, and the one that prevents the expensive kind.
• Dust control, if you need it. Calcium chloride or magnesium chloride applied once or twice a season, typically $0.05–$0.20 per sq ft per application. Mostly a rural-drive concern.
• Set the plow blade an inch high in winter, or fit skid shoes. A blade run flat on gravel takes your surface course into the ditch with the snow.

Annual cost to budget

Averaged over a driveway's life that is real money, but it is spread out and it is optional in any given year — which is exactly why gravel suits properties where a $10,000 concrete pour is not happening. Same caveat as everywhere else on this page: planning ranges for 2026, regional, and no substitute for a local quote.

Long Rural Driveways and Private Gravel Roads

Past about 200 feet a driveway stops being a landscaping project and starts being a small road. The stone is the easy part; drainage, access and turnaround are what determine whether it survives.

Tonnage for long drives at 12 ft wide

At this scale the arithmetic is unforgiving. Adding 2 inches of depth to a quarter-mile drive is another 138 tons and another nine truckloads. Decide the depth before you order, not after the first load arrives.

Crown, ditches and culverts

• Crown the surface. Build the center about 1 inch higher per 4 feet of width so water sheds sideways rather than running the length of the drive. On a 12 ft road that is roughly 1.5 inches of rise at the centreline. Restoring the crown is the main job every time you drag.
• Cut ditches on both sides wherever the drive is cut into a slope. The ditch bottom needs to sit below the road's subgrade, or the base stays saturated no matter how much stone is on top, and it needs somewhere to discharge.
• Set cross-culverts where water crosses the drive. A 12–18 in pipe covers most residential situations, but the correct size depends on the drainage area above it, so size it for the watershed and not for what fits the ditch.
• The entrance culvert is usually not your call. Where the drive meets a public road, the county or state DOT typically specifies the pipe size, length and headwalls and requires a driveway-entrance permit. Ask before you buy pipe.
• Keep at least 12 inches of cover over any culvert so a loaded truck cannot crush it, and mark the ends so nobody grades them shut.
• Geotextile fabric is the highest-value item on a long drive. Over soft or clay subgrade it stops the base pumping down into the mud, and it typically pays for itself in stone you do not have to keep replacing.

Width, grade and turnarounds

• 10–12 ft of driving surface for a single lane, widening 2–3 ft through curves because vehicles track wider through a turn.
• Pull-outs every 300–400 ft on anything long and single-lane, so two vehicles can pass without one reversing a quarter mile.
• Keep the grade under about 10%. Above that, surface stone washes downhill every storm and you need cross-drains, larger angular stone, or a paved strip in the wheel tracks.
• Provide a turnaround. Fire codes commonly require one on driveways past roughly 150 ft, along with a minimum clear width and around 13 ft 6 in of vertical clearance through overhanging branches. A hammerhead or a circular turnaround both work. These requirements are set locally and vary — check with your fire marshal or building department before you lay out the drive, because retrofitting a turnaround into finished landscaping is expensive.
• Build the base in lifts even at scale. Dumping 8 inches and rolling once leaves the middle loose no matter how long the roller runs.

If part of the drive is stabilised in concrete — a steep pitch, an apron at the road, or a parking pad — the concrete driveway calculator handles that section.

Gravel vs Concrete Driveway: The Real Comparison

Gravel wins decisively on upfront cost and loses on maintenance. Over a 20-year horizon on a normal suburban driveway the two are closer than the sticker prices suggest — and on a long rural drive gravel is not merely cheaper, it is the only realistic option.

Twenty-year cost on a 600 sq ft driveway

• Gravel, built DIY: $600–$1,800 to build, plus $40–$100 a year → roughly $1,400–$3,800 over 20 years.
• Gravel, installed: $1,800–$4,200 to build, plus $150–$300 a year → roughly $4,800–$10,200 over 20 years.
• Concrete, installed: $3,600–$7,200 to build, plus occasional sealing and repair → roughly $4,000–$8,500 over 20 years.

Which is to say: DIY gravel is dramatically cheaper, and contracted gravel on a short driveway is not obviously cheaper than concrete once you carry maintenance for two decades. If you are hiring out a 600 sq ft driveway and intend to stay in the house, price both. If the drive is 500 feet long, or you are doing the work yourself, gravel is not a close call.

For a full breakdown of what a poured driveway costs and what drives the price, see our guide on how much a concrete driveway costs, or run the numbers with the concrete driveway calculator.

Frequently Asked Questions

How deep should a gravel driveway be?

4 inches minimum for residential driveways. Use 6 inches for heavy use or if your soil is soft or clay-based. A layered approach (4 inches base + 2 inches top) gives the best results.

How many tons of gravel for a 2-car driveway?

A typical 2-car driveway (20×20 feet = 400 sq ft) at 4 inches deep needs about 6.9 tons — 400 × 4 ÷ 324 = 4.94 cubic yards, at roughly 1.4 tons per cubic yard. Order 7.5 tons to allow for spread and edges. At 6 inches deep it is about 10.4 tons.

Gravel vs concrete driveway?

Gravel costs $1–$3 per square foot in materials, or $3–$7 installed, and is genuinely DIY-able. Concrete runs about $6–$12 per square foot installed for a plain broom finish and lasts 25–30 years with almost no maintenance. Gravel is the budget choice and the only practical option on a long rural drive; concrete is the long-term investment on a short suburban one.

Do I need landscape fabric under driveway gravel?

Yes. Landscape fabric prevents gravel from sinking into the soil over time, reduces weed growth, and helps maintain a clean separation between your gravel layer and the ground beneath. Use heavy-duty woven fabric for driveways.

What size gravel is best for a driveway?

Use crusher run (#411) for the compacted base and surface — it contains stone dust that locks the material together. Avoid washed stone like #57 as a surface; with the fines screened out it never binds and stays permanently loose under tyres.

How long does a gravel driveway last?

The base lasts decades if it was built properly. The surface course needs topping up every 2–4 years as stone works into the base and gets carried off by tyres. Budget roughly 1 ton per 100 linear feet for a refresh.

How do I stop my gravel driveway from washing out?

Crown it — build the center about 1 inch higher per 4 feet of width so water sheds sideways rather than running down the wheel tracks. Add a swale or culvert where runoff crosses the drive, and edge it so material can't migrate into the lawn.

How much does a gravel driveway cost?

Materials run roughly $1.50–$3.00 per square foot for a properly built 6-inch base-and-surface driveway. A 12 × 50 ft drive is around $900–$1,800 in stone, plus delivery and any excavation.

Can I put gravel over an existing dirt driveway?

Only after preparing it. Dumping stone on soft soil means it sinks in and disappears within a season. Strip the topsoil, lay geotextile fabric if the subgrade is clay or stays wet, then build up compacted lifts of crusher run.

How wide should a driveway be?

10–12 feet for a single lane and 20–24 feet for two cars side by side. Add 2–3 feet extra on any curve, since vehicles track wider through a turn than they do on a straight run.

How do I maintain a gravel driveway?

Rake or drag it a couple of times a year to redistribute stone back into the wheel tracks and restore the crown. Top up the surface course every 2–4 years — roughly 1 ton per 100 linear feet. Fill potholes with crusher run and compact it, rather than just tipping loose stone in.

Will a gravel driveway work on a slope?

Up to about a 10% grade, yes. Above that, runoff carries the surface stone downhill every time it rains. Steep drives need either larger angular stone, a paved strip in the wheel tracks, or cross-drains cut at intervals to divert water off the surface.

How do I keep weeds out of a gravel driveway?

Geotextile fabric under the base stops weeds coming up from below, but most weeds in an established drive germinate in the dust and organic matter that collects on top. Regular raking and occasional spot treatment handle those; no underlayment prevents them.

Do I need edging on a gravel driveway?

It helps considerably. Without an edge, stone migrates into the lawn every time a car turns, and you lose depth from the sides inward. Timber, steel edging, or a row of pavers all work, and they also give you a clean line to grade against.

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

4 inches compacted for cars on firm ground, 6 inches on soft or clay soil, 8 inches if a pickup, RV or trailer uses it regularly, and 10–12 inches where loaded delivery trucks or farm equipment run. Those are compacted depths — compactable stone such as crusher run settles 15–25%, so order roughly 20% more than the finished depth suggests.

How much does gravel cost per cubic yard?

Roughly $35–$70 per cubic yard delivered for common driveway grades, which is the same thing as $25–$50 per ton at about 1.4 tons to the cubic yard. Decorative stone such as pea gravel or river rock runs higher. These are 2026 planning ranges and they vary a lot by region and by how far the quarry is.

How much does a truckload of gravel cost?

A tandem-axle dump truck carries about 12–16 tons, so a full load of common driveway stone is roughly $300–$800 delivered. A tri-axle carries 16–22 tons. Partial loads are poor value because the trucking is nearly the same either way, so if you are within a couple of tons of a full load, round up.

How much does it cost to gravel a 100 foot driveway?

A 12 × 100 ft drive is 1,200 sq ft. At 6 inches that is about 31 tons, or $780–$1,550 in stone. Installed by a contractor at $3–$7 per square foot it runs roughly $3,600–$8,400, which is why most rural owners buy the stone and hire only the machine time.

How much gravel do I need for a 500 foot driveway?

At 12 ft wide that is 6,000 sq ft — about 155 tons at 6 inches deep, or 207 tons at 8 inches. That is 10 to 14 tandem loads. On a drive that long, geotextile fabric under the base is the item that most reduces how much stone you buy again later.

How do I work out how big my driveway is?

Break it into rectangles, measure each one, and add the areas. Handle curves by averaging the width at three or four points and multiplying by the length along the centreline; measure a round turnaround as 3.14 × radius². Do not forget the flare where the drive meets the road — it is usually 50–150 sq ft and it is the piece people miss. A $30 measuring wheel or the measure-area tool on a satellite map both work for long drives.

Is it cheaper to build a gravel driveway yourself?

Considerably, if the site is straightforward. Materials are $1–$3 per square foot against $3–$7 installed, so on a 600 sq ft drive you are choosing between roughly $600–$1,800 and $1,800–$4,200. The DIY case holds when there is a stable base already, the drive is level, and the truck can dump where the stone goes. It falls apart when the job needs excavation, real grading or a culvert.

How much does it cost to maintain a gravel driveway each year?

Budget roughly $40–$100 a year on a short suburban drive and $250–$600 on a long rural one doing the work yourself, or two to three times that hiring it out. That covers dragging once or twice a year to restore the crown, topping up the surface every 2–4 years, and patching potholes with crusher run rather than loose stone.

What size culvert do I need for a driveway?

A 12–18 inch pipe covers most residential situations, but the correct size depends on the drainage area feeding it, so it should be sized for the watershed rather than for what fits the ditch. Where the drive meets a public road the county or state DOT usually specifies the pipe and requires an entrance permit — ask before you buy anything. Keep at least 12 inches of cover over any culvert so a loaded truck cannot crush it.