Gravel Yard to Ton Calculator: How to Convert

This calculator converts a volume of gravel measured in cubic yards to its weight in tons. You enter the volume in cubic yards and the density of the gravel (or pick a common type), and it returns the weight in short tons (US tons) and also shows the weight in pounds. The conversion is straightforward: weight = volume × density, but the density varies with gravel type, moisture, and compaction, so the calculator gives you a realistic range.

Formula

The basic formula is:

Weight (tons) = Volume (cubic yards) × Density (tons per cubic yard)

Where:

• Volume – the amount of gravel you have or need, measured in cubic yards (yd³).
• Density – the weight of one cubic yard of that specific gravel, measured in short tons per cubic yard (tons/yd³).

Common densities (short tons per cubic yard) for dry gravel:

• Pea gravel: 1.4 tons/yd³
• Crushed stone (average): 1.6 tons/yd³
• Bank run (natural gravel with sand): 1.7 tons/yd³
• Loose dry gravel: 1.3 tons/yd³
• Wet gravel: 1.8 tons/yd³ (moisture adds significant weight)

These are approximate averages. Actual density can vary by several percent depending on the source rock, particle size distribution, and moisture content.

Worked Example

Using the calculator defaults: 3 cubic yards of pea gravel (density 1.4 tons/yd³).

1. Multiply the volume by the density: 3 yd³ × 1.4 tons/yd³ = 4.2 tons.
2. The weight in pounds: 4.2 tons × 2000 lb/ton = 8400 lb.

So 3 cubic yards of pea gravel weighs about 4.2 tons (8,400 pounds).

Why Density Matters

Gravel is not a uniform material. The same cubic yard of gravel can weigh very different amounts depending on:

• Particle size and shape: Crushed stone has more air voids than rounded pea gravel, so it can be lighter per cubic yard.
• Moisture content: Wet gravel can weigh 10–20% more than dry gravel. Rain or damp ground adds significant weight.
• Compaction: Loose gravel as delivered is less dense than gravel that has been compacted with a roller. Compaction can increase density by 5–10%.
• Source rock: Granite is denser than limestone, so a cubic yard of granite gravel weighs more than a cubic yard of limestone gravel.

When ordering gravel, suppliers usually quote prices per ton, but you measure your project in cubic yards. That’s why you need this conversion.

How to Use the Calculator for Your Project

1. Measure the area you need to cover: length (ft) × width (ft) = square feet.
2. Decide on the depth of gravel (typically 2–4 inches for a driveway, 1–2 inches for a walkway). Convert inches to feet (depth in inches / 12).
3. Calculate cubic feet: square feet × depth (ft).
4. Convert to cubic yards: divide cubic feet by 27 (since 1 yd³ = 27 ft³).
5. Enter that volume into the calculator.
6. Choose the gravel type that best matches what you plan to order.

For example, a 10 ft × 20 ft driveway with 3 inches of gravel: 10 × 20 = 200 sq ft; 3 in = 0.25 ft; 200 × 0.25 = 50 ft³; 50 / 27 ≈ 1.85 yd³. Using crushed stone (1.6 tons/yd³), that’s about 2.96 tons.

Common Mistakes and Misconceptions

• Mixing up tons: This calculator uses the short ton (2,000 lb), which is standard in the US. A long ton (2,240 lb) is used in the UK, and a metric ton (1,000 kg ≈ 2,204 lb) is used internationally. Always confirm which ton your supplier uses.
• Using the wrong density: Using a generic “gravelâ€� density when you have pea gravel can overestimate weight by 10–15%.
• Forgetting moisture: If the gravel is wet, add 10–15% to the dry weight. A wet cubic yard can weigh 1.8 tons or more.
• Assuming 1 cubic yard = 1 ton: That’s only true for a material with a density of 1 ton/yd³, which is less than most gravel.

Practical Considerations for Ordering Gravel

• Order a little extra: It’s common to order 5–10% more than the calculated amount to account for settling, spillage, and uneven ground.
• Delivery limits: A standard dump truck can carry 10–14 tons, so for large projects, you may need multiple loads.
• Spreading depth: The gravel will settle after installation, so the final depth may be slightly less than when first spread.
• Weight limits: If you’re hauling gravel yourself, check your vehicle’s payload capacity. A cubic yard of gravel can weigh 1.4–1.8 tons, which may exceed a pickup truck’s bed capacity.

Alternative Units and Conversions

If you have measurements in metric units, you can convert:

• 1 cubic yard = 0.7646 cubic meters
• 1 ton (short) = 2,000 lb = 907.2 kg
• Density in kg/m³: multiply tons/yd³ by 1,186.6 (since 1 ton/yd³ = 1,186.6 kg/m³)

For example, 3 yd³ of pea gravel (1.4 tons/yd³) = 3 × 1.4 = 4.2 tons = 4.2 × 907.2 ≈ 3,810 kg = 3.81 metric tons.

Frequently Asked Questions

How many tons in a cubic yard of gravel?

For most dry gravel, one cubic yard weighs between 1.3 and 1.7 tons. The exact weight depends on the gravel type and moisture. For planning, use 1.5 tons per cubic yard as a rough average.

How do I convert cubic yards to tons manually?

Multiply the volume in cubic yards by the density in tons per cubic yard. If you don’t know the density, use 1.5 tons/yd³ for a typical gravel. For wet gravel, use 1.8 tons/yd³.

What is the difference between a cubic yard and a ton?

A cubic yard is a measure of volume (3 feet × 3 feet × 3 feet). A ton is a measure of weight (2,000 pounds). The relationship between them depends on the material’s density.

Can I use this calculator for other materials like sand or soil?

Yes, but you need to adjust the density. Sand is typically 1.2–1.4 tons/yd³, topsoil is about 1.0–1.2 tons/yd³, and crushed concrete is about 1.5 tons/yd³. The calculator’s gravel types won’t be accurate for those materials.

Why does my supplier quote in tons but I measured in cubic yards?

Suppliers sell by weight because it’s more accurate for billing. Volume can change with compaction and moisture, but weight is consistent. That’s why you need this conversion to estimate your cost.

Is a ton of gravel the same as a cubic yard?

No. A ton is a unit of weight, and a cubic yard is a unit of volume. A cubic yard of gravel weighs about 1.4–1.8 tons, so a ton of gravel is roughly 0.6–0.7 cubic yards.

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in vol | Volume | yd³ | 3 | 0
sel type | Gravel type | Pea gravel=1.4, Crushed stone=1.6, Bank run=1.7, Loose dry=1.3, Wet=1.8
out tons | Weight | tons | vol * type | 2
out pounds | Weight | lb | vol * type * 2000 | 0