Gravel Driveway Calculator

Q: How many tons of gravel are in a standard dump truck?

A standard commercial tandem-axle dump truck typically carries 12 to 14 US tons (approximately 8 to 10 cubic yards) of gravel. A smaller single-axle municipal dump truck carries 5 to 7 tons, while a heavy tri-axle or quad-axle dump truck can haul 16 to 22 tons per load.

Q: How many square feet does 1 ton of gravel cover at 4 inches?

At a 4-inch compacted depth, 1 US ton of Crusher Run (1.50 tons/yd³) covers approximately 54 square feet. At a 2-inch resurfacing depth, 1 ton covers approximately 108 square feet. At a 6-inch heavy sub-base depth, 1 ton covers roughly 36 square feet.

Q: What is the best gravel for a long rural driveway?

The industry standard for rural and residential driveways is Crusher Run (also called Dense Grade Aggregate, ABC Stone, or 21A). Crusher Run blends angular 3/4-inch crushed stone with stone dust/fines. When compacted with a heavy roller or vibrating plate, the fines lock together like low-grade asphalt, resisting washouts, tire tracking, and severe ruts.

Engineering Formula

📐 How Much Gravel Do I Need for a Driveway? (Cubic Yards & Tonnage Formula)

Calculating the exact volume of gravel for a driveway requires calculating three-dimensional cubic volume in feet, converting to cubic yards, and applying the aggregate's specific density multiplier to determine how many tons of gravel for a driveway are required. Commercial quarries and dump truck dispatchers sell bulk stone exclusively by weight.

// Gravel Driveway Calculator Formula (US Standard):

Cubic Yards = [ Length (ft) × Width (ft) × ( Depth (in) ÷ 12 ) ] ÷ 27

Total US Tons = Cubic Yards × 1.10 (Compaction) × Density (Tons/yd³)

How Many Tons of Gravel for a Driveway? (Step-by-Step Calculation)

Suppose you are building a standard 12' × 100' residential driveway at a depth of 4 inches using Crusher Run (1.50 tons/yd³):

Step 1: Find Driveway Surface Area

Multiply total driveway length by width in feet. For example, a standard 100-foot driveway by 12-foot width equals 1,200 square feet.

Step 2: Convert Depth to Feet

Divide target stone thickness in inches by 12 inches per foot. For a standard 4-inch base layer: 4 inches ÷ 12 = 0.333 feet.

Step 3: Calculate Total Cubic Feet

Multiply surface square footage by depth in feet: 1,200 sq. ft. × 0.333 ft = 400 cubic feet.

Step 4: Convert to Loose Cubic Yards

Divide total cubic feet by 27: 400 cu. ft. ÷ 27 = 14.81 loose cubic yards.

Step 5: Add a 10% Compaction Allowance

Account for mechanical roller tamping and subgrade interlock by multiplying loose volume by 1.10: 14.81 cu. yd. × 1.10 = 16.29 compacted cubic yards.

Step 6: Convert to US Tonnage & Truckloads

Multiply compacted yards by Crusher Run bulk density (1.50 tons/yd³): 16.29 cu. yd. × 1.50 = 24.44 US Tons (requiring 2 standard tandem dump truck loads). To convert any gravel or stone aggregate from volume to weight at custom densities, use our cubic yards to tons converter.

📊 Popular Driveway Dimensions: Quick Tonnage & Truckload Estimates

Direct answers for high-volume residential dimension queries (calibrated with a 10% compaction margin at standard 4-inch depth using Crusher Run):

10' × 50' Short Lane

10.2 Tons

1 Tandem Truckload (4" deep)

How much gravel do I need for a 50 foot driveway: 10.2 tons of stone. Fits perfectly in one full 12-ton tandem dump load.

12' × 100' Standard Driveway

24.4 Tons

2 Tandem Truckloads (4" deep)

How many tons of gravel for a 100 ft driveway: 24.4 tons (16.3 yards). Requires two full commercial tandem dump loads.

20' × 50' 2-Car Driveway

20.4 Tons

2 Tandem Truckloads (4" deep)

20x50 gravel driveway calculator: 1,000 sq. ft. requires 20.4 tons of Crusher Run (approx. 2 loads).

20' × 100' Long Double

40.7 Tons

3 to 4 Tandem Truckloads

How many dump truck loads of gravel do I need: 3 to 4 tandem loads (or 2 to 3 tri-axle loads) for 2,000 sq. ft.

Gravel driveway depth calculator guidelines: Use tons of crusher run for driveway projects requiring maximum stabilization. Compact in 2" increments to lock stone fines firmly into place.

📋 Gravel Driveway Quick Tonnage Reference Table

Pre-calculated quantities for standard driveway dimensions across depths (including 10% compaction allowance using Crusher Run at 1.50 tons/yd³).

Driveway Size	Area (Sq. Ft.)	2" Top-Up (Tons)	4" Standard (Tons)	6" Heavy Base (Tons)	Dump Truck Loads (at 4")
10' × 50' (Short Single)	500 sq. ft.	5.1 Tons	10.2 Tons	15.3 Tons	1 Tandem Load
12' × 50' (Single Wide)	600 sq. ft.	6.1 Tons	12.2 Tons	18.3 Tons	1 Tandem Load
10' × 100' (Long Single)	1,000 sq. ft.	10.2 Tons	20.4 Tons	30.6 Tons	2 Tandem Loads
12' × 100' (Standard Residential)	1,200 sq. ft.	12.2 Tons	24.4 Tons	36.7 Tons	2 Tandem Loads
20' × 50' (2-Car Double)	1,000 sq. ft.	10.2 Tons	20.4 Tons	30.6 Tons	2 Tandem Loads
20' × 100' (Large Double)	2,000 sq. ft.	20.4 Tons	40.7 Tons	61.1 Tons	3 – 4 Tandem Loads

🪨 Crushed Stone Driveway vs. Crusher Run: Which Is Right for Your Project?

Building a durable crushed stone driveway depends on pairing the right coarse stone base with a stable surface dressing. For estimating single-layer stone installations or shed pads, see our dedicated crushed stone calculator.

Aggregate Material	Particle Sizing	Weight (Tons/yd³)	Interlock Ability	Best Application
Crusher Run (ABC / DGA)	3/4" down to fine stone dust	1.50 Tons	Highest (Binds like roadbase)	Driveway base layer, parking pads
Clean #57 Washed Stone	1/2" to 1" clean angular rock	1.40 Tons	Moderate (Water drain)	Top dressing layer, French drains
Pea Gravel (3/8")	3/8" smooth round river pebbles	1.40 Tons	Low (Rolls under tires)	Decorative borders, pea gravel patios
#4 Coarse Crushed Stone	1.5" to 2.5" heavy ballast stone	1.45 Tons	High (Ballast lock)	Muddy subgrade foundation ballast over fill dirt

❓ Frequently Asked Gravel Driveway Questions

Common calculation questions asked by licensed contractors and DIY homeowners.

How deep should a gravel driveway be?

A newly constructed gravel driveway requires a total compacted depth of 6 to 8 inches built in distinct layers. A typical residential cross-section features 4 to 6 inches of coarse base stone (Crusher Run or #4 stone) followed by 2 to 3 inches of clean surface gravel (#57 stone). An existing driveway needing an annual top-up or freshening only requires a 2-inch dressing layer.

How many tons of gravel are in a standard dump truck?

A standard commercial tandem-axle dump truck typically carries 12 to 14 US tons (approximately 8 to 10 cubic yards) of gravel. A smaller single-axle municipal dump truck carries 5 to 7 tons, while a heavy tri-axle or quad-axle quarry hauler can deliver 16 to 22 tons per load.

How many square feet does 1 ton of gravel cover at 4 inches?

At a 4-inch compacted depth, 1 US ton of Crusher Run (1.50 tons/yd³) covers approximately 54 square feet. At a 2-inch resurfacing depth, 1 ton covers approximately 108 square feet. At a 6-inch heavy sub-base depth, 1 ton covers roughly 36 square feet.

What is the best gravel for a long rural driveway?

The industry benchmark for long rural driveways is Crusher Run (also known as Dense Grade Aggregate, ABC Stone, or 21A). Crusher Run combines angular 3/4-inch crushed limestone or granite with stone dust fines. When compacted with traffic or a vibratory roller, the fines lock together like low-grade asphalt, resisting washouts, tire ruts, and winter freeze-thaw damage.

How much does a dump truck load of driveway gravel cost?

A standard tandem dump truck load (12 to 14 tons) of driveway gravel typically costs between $450 and $850 delivered, depending on haul distance from the quarry. On average across the US, bulk aggregate prices range from $35 to $65 per ton delivered.