How deep should a new gravel driveway be?

Plan for 8-12 inches total, built in three 4-inch layers: a crusher run base, then a middle stabilizing layer if needed, then a finish layer of #57 stone or pea gravel. Resurfacing an existing driveway usually only needs 2-3 inches of fresh gravel on top of the existing base.

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

Calculate cubic yards first — (length ft x width ft x depth ft) / 27 — then multiply by 1.2 to 1.35 tons per cubic yard depending on the stone. A typical single-car driveway (50 ft x 10 ft x 8 in) needs about 12.3 cubic yards, or roughly 15-17 tons.

Can my pickup truck haul gravel for a driveway myself?

Yes, for smaller jobs. A pickup can safely carry about 1 cubic yard (roughly 2,500 lbs) per trip — that's a payload limit, not a bed-capacity one, so the load will look small even at the safe max. For totals over 2-3 tons, delivery by dump truck is usually more practical than multiple trips.

What's the difference between crusher run and #57 gravel?

Crusher run (DGA) is a mix of crushed stone and fines that compacts into a dense, load-bearing base — it's used for the bottom layer. #57 crushed stone is a clean, uniform, angular stone with no fines, used as the top drainage and finish layer because it locks together while still letting water pass through.

Do I need fabric under a gravel driveway?

Yes, for a new driveway over soil. Geotextile fabric separates the gravel base from the ground beneath it, preventing the stone from sinking into soft or wet soil over time and reducing weed growth — without it, a driveway can lose several inches of depth into the subgrade within a few years.

Gravel Driveway Calculator

A gravel driveway isn't just a pile of rock dumped on dirt — it's a layered system, and getting the volume right matters for both your budget and how long the surface holds up. This calculator converts your length, width, and depth into cubic yards, tons, and truckloads, but the numbers only mean something once you know what depth to plug in and why. That's what this page covers.

Whether you're building a new driveway from scratch or resurfacing an old one, the math below shows exactly how the calculator gets its answer, so you can double-check it, adjust for irregular shapes, and order the right amount the first time. For the full walkthrough on choosing materials and prepping the base, see the full driveway guide.

Length (ft)Width (ft)Depth (in)

Common depth:

MaterialYour truck

You need

14.81 cubic yards (20.00 tons)

Area covered: 1,200 sq ft
Volume: 400 cu ft (14.81 cu yd)
Total weight: 40,000 lbs

That's 27 trips in a Ford F-150 (1,525 lb payload, ~1,481 lbs per trip).

This load exceeds what the F-150 can carry safely in one trip. Split it into 27 trips, or have it delivered.

Order about 10% extra to allow for compaction, settling, and spillage. See Gravel, crusher run (DGA) weight details or run a full payload check.

Measuring your driveway

Start with length times width in feet to get square footage. A straight driveway is easy — measure the two dimensions and multiply. Curved or irregular drives take a bit more work: break the shape into rectangles (or a rectangle plus a triangle for a flared end), calculate each piece separately, then add the areas together before running the total through the calculator.

Measure at the widest points you'll actually gravel, including any turnaround or apron area near the garage or street, since those get left out more often than you'd think.

How deep should the gravel be?

Gravel is built up in layers about 4 inches thick — any thicker per pass and it's hard to compact properly with a plate compactor or roller. A brand-new driveway, built from bare or excavated soil, typically needs 3 layers for a total depth of 8-12 inches. Resurfacing an existing gravel drive that already has a compacted base usually only needs 2-3 inches of fresh material on top.

If you're not sure which situation you're in: if you can see bare dirt or the old gravel has thinned to a scattering of stone, you're resurfacing. If you're starting from grass, dirt, or mud, plan for the full new-driveway depth.

The formula behind the numbers

The calculator does this math for you, but it helps to see it laid out. First, convert depth from inches to feet by dividing by 12. Then:

cubic yards = (length in feet x width in feet x depth in feet) / 27

The 27 converts cubic feet to cubic yards (3 x 3 x 3). From there, tons = (cubic yards x pounds per cubic yard) / 2000. Gravel typically weighs 1.2 to 1.35 tons per cubic yard depending on the stone type and how wet or compacted it is. For example, a 50 ft x 12 ft driveway at 8 inches deep works out to (50 x 12 x 0.667) / 27 = about 14.8 cubic yards, or roughly 18-20 tons at 1.25 tons/yd3. For more worked examples, see the yards-to-tons conversions guide.

Run each layer through the calculator separately if you're using different materials or depths per layer, then add the totals together.

Why a driveway is built in layers

A gravel driveway isn't one uniform material top to bottom — each layer does a different job.

The base layer is crusher run (also called DGA or dense-graded aggregate), a mix of crushed stone and rock dust that compacts into a hard, interlocked surface. At around 2,700 lb/yd3, it's the heaviest and densest layer, and it's what actually carries the weight of your vehicle and keeps the driveway from rutting.

On top goes a drainage and finish layer — either #57 crushed stone (about 2,410 lb/yd3), a clean, angular stone that locks together and drains well, or pea gravel (about 2,500 lb/yd3) if you want a smoother, rounder look underfoot and under tires. This top layer sheds water instead of holding it and gives the driveway its finished appearance.

How many truckloads will it take?

A standard pickup can safely haul roughly 1 cubic yard of gravel per trip — and that limit is about weight, not bed space. A cubic yard of gravel weighs around 2,500 lbs, which is close to the payload capacity of most half-ton and even some 3/4-ton trucks, so the bed will look far from full when you're already at the safe limit. Overloading strains the suspension, tires, and brakes, so stick to the yard-per-load rule of thumb regardless of how much room is left.

For anything beyond a few cubic yards, it's usually faster and safer to have a dump truck deliver in bulk. Standard dump trucks carry roughly 10-15 tons per load (about 8-12 cubic yards), so most driveway jobs are a single delivery. If your total is under 2-3 tons, hauling it yourself in a pickup is often the more practical option; above that, delivery saves multiple round trips.

Ordering tips

A few adjustments before you place the order:

Add about 10% to your calculated total to cover compaction settling and spreading losses.
Lay geotextile fabric under the base layer to stop the gravel from sinking into soft soil over time and to keep weeds down.
Install edging (plastic, metal, or timber) along the sides to keep gravel from spreading into the yard.
Crown the center or slope the surface slightly to one side so water runs off instead of pooling and washing out the base.

Frequently Asked Questions

How deep should a new gravel driveway be?: Plan for 8-12 inches total, built in three 4-inch layers: a crusher run base, then a middle stabilizing layer if needed, then a finish layer of #57 stone or pea gravel. Resurfacing an existing driveway usually only needs 2-3 inches of fresh gravel on top of the existing base.
How many tons of gravel do I need for my driveway?: Calculate cubic yards first — (length ft x width ft x depth ft) / 27 — then multiply by 1.2 to 1.35 tons per cubic yard depending on the stone. A typical single-car driveway (50 ft x 10 ft x 8 in) needs about 12.3 cubic yards, or roughly 15-17 tons.
Can my pickup truck haul gravel for a driveway myself?: Yes, for smaller jobs. A pickup can safely carry about 1 cubic yard (roughly 2,500 lbs) per trip — that's a payload limit, not a bed-capacity one, so the load will look small even at the safe max. For totals over 2-3 tons, delivery by dump truck is usually more practical than multiple trips.
What's the difference between crusher run and #57 gravel?: Crusher run (DGA) is a mix of crushed stone and fines that compacts into a dense, load-bearing base — it's used for the bottom layer. #57 crushed stone is a clean, uniform, angular stone with no fines, used as the top drainage and finish layer because it locks together while still letting water pass through.
Do I need fabric under a gravel driveway?: Yes, for a new driveway over soil. Geotextile fabric separates the gravel base from the ground beneath it, preventing the stone from sinking into soft or wet soil over time and reducing weed growth — without it, a driveway can lose several inches of depth into the subgrade within a few years.

Material Weights Used Here

Gravel, crusher run (DGA) — 2,700 lbs/yd³
Gravel, crushed stone (#57) — 2,410 lbs/yd³
Gravel, pea (washed) — 2,500 lbs/yd³
Gravel, limestone — 2,610 lbs/yd³
Gravel, recycled concrete (RCA) — 2,410 lbs/yd³