How many tons of gravel do I need?

To determine how many tons of gravel you need: first calculate the volume in cubic yards (Length × Width × Depth in feet ÷ 27), then multiply by the material density. For a 20'×50' driveway at 6 inches deep, you need 20 × 50 × 0.5 ÷ 27 = 18.5 cubic yards, which equals about 27.8 tons of crushed stone (18.5 × 1.5). Use our gravel calculator for accurate project estimates.

Is a ton heavier than a cubic yard?

No, a cubic yard of gravel is heavier than a ton. One cubic yard of gravel weighs approximately 1.2 to 1.5 tons (2,400-3,000 pounds), while one ton equals exactly 2,000 pounds. This means one cubic yard of gravel is about 20-50% heavier than one ton. You cannot directly compare tons and cubic yards because tons measure weight and cubic yards measure volume — the conversion depends on the material's density.

Gravel Calculator/Tons to Cubic Yards Calculator

Tons to Cubic Yards Calculator

Convert tons of gravel into cubic yards instantly. Calculate volume based on material type and density. Supports tons, pounds, kilograms — with cubic yards, cubic feet, and cubic meter output.

Gravel Weight

Weight Unit

Material Type

Density (tons / cubic yard)

CRUSHED STONE 1.50 tons / cubic yard

Custom: t/yd³

Conversion Formula

Cubic Yards = Tons ÷ Density = 6.67 yd³

Cubic Yards

6.67

yd³

Cubic Feet

180

ft³

Cubic Meters

5.10

m³

Material

CRUSHED STONE

1.50 t/yd³

Tons to Cubic Yards Conversion Chart

Quick reference for converting tons of gravel to cubic yards across different materials and quantities:

Material	1 Ton	5 Tons	10 Tons	15 Tons	20 Tons
Crushed Stone	0.67 yd³	3.33 yd³	6.67 yd³	10.00 yd³	13.33 yd³
Gravel	0.70 yd³	3.52 yd³	7.04 yd³	10.56 yd³	14.08 yd³
Sand	0.74 yd³	3.70 yd³	7.41 yd³	11.11 yd³	14.81 yd³
Topsoil	1.00 yd³	5.00 yd³	10.00 yd³	15.00 yd³	20.00 yd³
Mulch	2.50 yd³	12.50 yd³	25.00 yd³	37.50 yd³	50.00 yd³

Conversions use standard industry densities. Actual values may vary based on moisture content and compaction.

Material Density Reference

Material density is the key factor in converting tons to cubic yards. Here are the standard densities for common materials:

Material	Tons / Cubic Yard	Lbs / Cubic Yard	Kg / Cubic Meter	Common Uses
Crushed Stone	1.50	3,000	1,780	Driveways, drainage, base material
Gravel	1.42	2,840	1,685	Paths, landscaping, general fill
Sand	1.35	2,700	1,602	Sandboxes, masonry, bedding
Topsoil	1.00	2,000	1,187	Garden beds, lawn preparation
Mulch	0.40	800	475	Garden mulch, decorative

Densities are industry averages. Actual values may vary based on moisture content, compaction, and particle size.

How to Convert Tons to Cubic Yards

Converting tons of gravel to cubic yards is a simple three-step process. Follow this guide or use our calculator above for instant results.

Know Your Gravel Weight in Tons

Determine the total weight of gravel you have or need. If you have pounds, divide by 2,000 to get tons. If you have kilograms, divide by 907.185. For example, 15,000 pounds = 7.5 tons.

Choose the Correct Material Density

Select the density for your material type. Crushed stone = 1.50 tons/yd³, gravel = 1.42 tons/yd³, sand = 1.35 tons/yd³, topsoil = 1.00 tons/yd³, mulch = 0.40 tons/yd³. If you know your supplier's exact density, use that for the most accurate result.

Apply the Conversion Formula

Divide the weight in tons by the material density. The formula is: Cubic Yards = Tons ÷ Density. For example, 15 tons of crushed stone (density 1.50) = 15 ÷ 1.50 = 10.0 cubic yards. To convert to cubic feet, multiply cubic yards by 27.

Core Conversion Formula

Cubic Yards = Tons ÷ Density (tons/yd³)

Example 1

10 Tons of Crushed Stone

Density: 1.50 tons/yd³
10 ÷ 1.50 = 6.67 cubic yards
= 180 cubic feet | 5.10 m³

Example 2

5 Tons of Gravel

Density: 1.42 tons/yd³
5 ÷ 1.42 = 3.52 cubic yards
= 95 cubic feet | 2.69 m³

Example 3

8,000 lbs of Sand

8,000 lbs = 4 tons
Density: 1.35 tons/yd³
4 ÷ 1.35 = 2.96 cubic yards

Example 4

25 Tons of Topsoil

Density: 1.00 tons/yd³
25 ÷ 1.00 = 25.00 cubic yards
= 675 cubic feet | 19.11 m³

Why Tons and Cubic Yards Are Different

Tons and cubic yards measure two fundamentally different things, which is why a conversion factor (density) is always needed.

Tons = Weight

2,000 lbs

A ton is a unit of weight (mass). It always equals exactly 2,000 pounds regardless of the material. One ton of feathers and one ton of gravel both weigh the same — 2,000 pounds.

Cubic Yards = Volume

27 ft³

A cubic yard is a unit of volume — a cube measuring 3 feet × 3 feet × 3 feet. It equals 27 cubic feet. One cubic yard of gravel occupies the same physical space regardless of weight.

Factors That Affect the Conversion

Material Type

Different materials have different densities. Crushed stone is denser (1.50 tons/yd³) than gravel (1.42 tons/yd³), and mulch is far lighter (0.40 tons/yd³). This is the primary factor — denser materials yield fewer cubic yards per ton.

Moisture Content

Wet material weighs more per cubic yard than dry material because water fills the void spaces. Moisture can add 5–15% to the weight, meaning a wet cubic yard contains fewer actual particles than a dry cubic yard of the same weight.

Compaction

Compacted gravel is denser than loose gravel. A cubic yard of loose gravel might weigh 2,600 lbs, but the same material after compaction could weigh 2,900 lbs. Use the density that matches your material's condition.

Particle Size & Gradation

Well-graded material with mixed particle sizes packs more densely than uniformly-sized stone. Smaller particles fill gaps between larger ones, increasing density. Crusher run is heavier per cubic yard than clean crushed stone for this reason.

Common Project Conversions

Real-world examples of tons-to-cubic-yards conversions for typical landscaping and construction projects:

🚗

Driveway

15 tons ≈ 10 yd³

Crushed stone at 1.5 t/yd³

🌿

Landscaping

5 tons ≈ 3.5 yd³

Gravel at 1.42 t/yd³

🌱

Garden Bed

2 tons ≈ 5 yd³

Mulch at 0.4 t/yd³

Frequently Asked Questions

One ton of gravel equals approximately 0.67 to 2.50 cubic yards, depending on the material. Crushed stone yields about 0.67 cubic yards per ton (density 1.50 tons/yd³), gravel yields 0.70 cubic yards per ton (density 1.42 tons/yd³), sand yields 0.74 cubic yards per ton (density 1.35 tons/yd³), topsoil yields 1.00 cubic yards per ton (density 1.00 tons/yd³), and mulch yields 2.50 cubic yards per ton (density 0.40 tons/yd³). The exact conversion depends on the material's density.

To convert tons of gravel to cubic yards, divide the weight in tons by the material's density (tons per cubic yard). The formula is: Cubic Yards = Tons ÷ Density. For example, 10 tons of crushed stone (density 1.5) = 10 ÷ 1.5 = 6.67 cubic yards. Use our free calculator above to convert any amount instantly for different material types.

One cubic yard of gravel weighs between 800 and 3,000 pounds (0.4 to 1.5 tons). Crushed stone weighs approximately 1.50 tons per cubic yard, gravel weighs 1.42 tons per cubic yard, sand weighs 1.35 tons per cubic yard, topsoil weighs 1.00 tons per cubic yard, and mulch weighs approximately 0.40 tons per cubic yard. Moisture content can increase weight by 5–15%.

Calculate the volume in cubic yards first (Length × Width × Depth in feet ÷ 27), then multiply by the material density. For a 20′×50′ driveway at 6 inches deep: 20 × 50 × 0.5 ÷ 27 = 18.5 cubic yards × 1.5 = about 27.8 tons of crushed stone. Our gravel calculator handles this automatically.

Yes, material type significantly affects the tons-to-cubic-yards conversion because different materials have different densities. For example, 10 tons of crushed stone equals 6.67 cubic yards, while 10 tons of gravel equals 7.04 cubic yards — a 5% difference — and 10 tons of mulch equals 25.00 cubic yards. Always use the correct density for your specific material. Our calculator includes densities for crushed stone, gravel, sand, topsoil, and mulch.

No, a cubic yard of gravel is heavier than a ton. One cubic yard of gravel weighs approximately 1.2 to 1.5 tons (2,400–3,000 pounds), while one ton equals exactly 2,000 pounds. You cannot directly compare the two because tons measure weight and cubic yards measure volume — the conversion always depends on density.

Related Gravel Tools & Guides

Cubic Yards to Tons Calculator Gravel Weight Calculator Gravel Calculator Gravel Coverage Calculator Gravel Cost Calculator Gravel Weight Guide

Understanding Tons to Cubic Yards Conversion

If you're planning a gravel project, understanding how to convert tons to cubic yards is one of the most important calculations you'll make. Gravel is typically sold by the ton at quarries and landscape supply yards, but your project dimensions are measured in cubic yards or square feet. This disconnect between how gravel is sold and how projects are measured is where our tons to cubic yards calculator becomes invaluable.

The core formula is straightforward: Cubic Yards = Tons ÷ Density. But the density — measured in tons per cubic yard — varies by material type. Crushed stone is denser (1.50 tons/yd³) than gravel (1.42 tons/yd³), which means 10 tons of crushed stone takes up less space (6.67 cubic yards) than 10 tons of gravel (7.04 cubic yards). Getting this conversion right prevents costly ordering mistakes.

Tips for Accurate Conversion

For the most accurate tons-to-cubic-yards conversion: use the exact density from your gravel supplier rather than generic estimates, account for moisture if the material has been exposed to rain (add 5–10%), and always add 5–10% extra to your order to account for compaction and spillage. A small buffer is far cheaper than a second delivery.