Cubic Yards to Tons: How to Convert

This calculator converts loose cubic yards to tons for common materials like soil, sand, gravel, and mulch. You enter the volume in cubic yards and select the material, and it returns the weight in tons (short tons, 2,000 lb). The conversion uses each material’s density, which varies widely, so the result is an estimate.

Formula

The basic formula is: Tons = Cubic Yards × Density (tons per cubic yard)

Each material has a bulk density, usually expressed in pounds per cubic foot (lb/ft³) or kilograms per cubic meter (kg/m³). To use it in this formula, convert density to tons per cubic yard:

Density (tons/yd³) = Density (lb/ft³) × 0.0135

For example, dry sand has a density of about 100 lb/ft³. Multiply by 0.0135 to get 1.35 tons/yd³. So 1 cubic yard of sand weighs about 1.35 tons.

Worked Example

Using the calculator defaults: select Sand (density = 1.4 tons/yd³) and enter 1 cubic yard.

1. Start with the volume: 1 yd³
2. Multiply by the density: 1 × 1.4 = 1.4
3. Result: 1.4 tons

The calculator shows 1.40 tons, matching the example.

Why Density Matters

Loose materials have different densities because of particle size, moisture, and compaction. For instance:

• Topsoil: about 1.1 tons/yd³ when dry, but can reach 1.3 tons/yd³ when wet.
• Sand: dry sand is around 1.4 tons/yd³; wet sand can be 1.6 tons/yd³.
• Gravel: typically 1.6 to 1.8 tons/yd³, depending on the size and whether it’s loose or compacted.
• Mulch: much lighter, only 0.4 to 0.6 tons/yd³.

Moisture is the biggest variable. A cubic yard of wet soil can weigh 20-30% more than the same soil dry. If you’re ordering material, ask the supplier for the exact density they use.

How to Measure Cubic Yards

A cubic yard is a cube 3 feet long, 3 feet wide, and 3 feet high. That’s 27 cubic feet. For a rectangular area, use:

Cubic yards = (Length in feet × Width in feet × Depth in feet) ÷ 27

For example, a garden bed 10 ft long, 4 ft wide, and 0.5 ft deep needs 10 × 4 × 0.5 = 20 cubic feet, or 20 ÷ 27 ≈ 0.74 cubic yards.

If you’re covering an area with mulch, a common rule is 1 cubic yard covers about 100 square feet at 3 inches deep. But always measure your own dimensions.

Common Mistakes and Pitfalls

• Mixing up tons and cubic yards: Tons measure weight, cubic yards measure volume. They are not interchangeable.
• Using the wrong density: A density for compacted gravel will overestimate loose gravel weight. Always use the loose bulk density.
• Forgetting moisture: Wet materials weigh more. If the material has been rained on, the weight can increase significantly.
• Rounding too early: Round only at the end. If you round the density to 1.4 instead of 1.35, you’ll get a 4% error.

Also note that there are different “tons”: the short ton (2,000 lb) used in the US, the long ton (2,240 lb) in the UK, and the metric ton (1,000 kg ≈ 2,204 lb). This calculator uses short tons, which is standard for US construction and landscaping.

When to Use This Conversion

You’ll need this when ordering bulk materials like topsoil, gravel, or sand for a project. Suppliers often price by the ton, but you plan by volume. For example, you’ve measured your garden bed in cubic yards, but the quarry sells gravel by the ton. This conversion tells you how many tons to order.

It’s also useful for estimating truck loads. A typical dump truck carries 10-14 cubic yards of material. At 1.4 tons per cubic yard, that’s 14-19.6 tons, which is near the legal weight limit for many roads.

Alternatives and Related Measurements

Sometimes you’ll work with other units:

• Cubic feet to tons: Divide cubic feet by 27 to get cubic yards, then multiply by density.
• Square yards to tons: You need depth to get volume. Multiply square yards by depth (in yards) to get cubic yards.
• Kilograms to cubic yards: Convert kg to tons (divide by 907.2 for short tons), then divide by density.

For materials like asphalt or concrete, the density can be much higher (around 2.0 tons/yd³ for concrete). Always check the specific gravity or bulk density from a reliable source.

Frequently Asked Questions

How many tons is 10 cubic yards of gravel?

Using a typical gravel density of 1.6 tons/yd³, 10 cubic yards would be 10 × 1.6 = 16 tons. But if the gravel is wet or has more fines, it could be closer to 18 tons.

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

A cubic yard is a measure of volume (3 ft × 3 ft × 3 ft), while a ton is a measure of weight (2,000 lb). They are related by density: weight = volume × density. You can’t convert one to the other without knowing the material’s density.

How much does a cubic yard of topsoil weigh?

Dry topsoil typically weighs about 1.1 tons per cubic yard (2,200 lb). When wet, it can weigh up to 1.3 tons (2,600 lb). The exact weight depends on moisture content and soil composition.

Can I use this calculator for mulch?

Yes, but remember that mulch is very light. The calculator uses 0.5 tons/yd³ as a default, which is a common average. Some mulches like shredded hardwood are closer to 0.4 tons/yd³, while rubber mulch is heavier at about 0.8 tons/yd³.

Why does my supplier quote a different weight than this calculator?

Suppliers often use their own density values based on their specific material source and moisture conditions. They may also quote in metric tons or long tons. Always confirm the unit and the density they use.

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sel material | Material | Topsoil=1.1, Sand=1.4, Gravel=1.6, Mulch=0.5, Limestone=1.8, Concrete=2.0
in cy | Volume | cubic yards | 1 | 0
out tons | Weight | tons | cy * material | 2