1 Yard of Soil Is How Many Cubic Feet? Complete Guide

If you’re buying soil for a garden, lawn, flower bed, raised bed, or landscaping project, you may wonder: 1 yard of soil is how many cubic feet?

The answer is:

1 cubic yard of soil = 27 cubic feet

A cubic yard is a unit of volume, not length or area. Since one yard equals three feet, a cubic yard is calculated by multiplying three feet by three feet by three feet:

3 ft × 3 ft × 3 ft = 27 cubic feet

Therefore:

1 cubic yard of soil contains exactly 27 cubic feet of soil.

This conversion applies to soil, topsoil, garden soil, compost, mulch, gravel, and many other materials when they are measured by volume.

Quick Answer: 1 Yard of Soil in Cubic Feet

1 cubic yard = 27 cubic feet

The formula is:

1 yd³ = 3 ft × 3 ft × 3 ft

1 yd³ = 27 ft³

So if a landscaping supplier says you’re buying 1 yard of soil, they generally mean 1 cubic yard, which contains 27 cubic feet.

Cubic Yards	Cubic Feet
0.25 yd³	6.75 ft³
0.5 yd³	13.5 ft³
0.75 yd³	20.25 ft³
1 yd³	27 ft³
1.5 yd³	40.5 ft³
2 yd³	54 ft³
3 yd³	81 ft³
4 yd³	108 ft³
5 yd³	135 ft³

What Is a Cubic Yard of Soil?

A cubic yard measures volume.

Imagine a box that measures:

3 feet long
3 feet wide
3 feet high

The volume is:

3 × 3 × 3 = 27 cubic feet

That entire box represents:

1 cubic yard

So when a landscaping company sells soil by the “yard,” it usually means a cubic yard.

This distinction is important because yard can also be used as a linear measurement. In soil and landscaping, however, “one yard of soil” normally refers to one cubic yard.

Why Is a Cubic Yard 27 Cubic Feet?

The calculation comes from the basic conversion:

1 yard = 3 feet

Because volume has three dimensions, you multiply the conversion three times:

3 × 3 × 3 = 27

Therefore:

1 cubic yard = 27 cubic feet

This is an exact mathematical conversion.

How to Calculate Cubic Feet of Soil

If you know the length, width, and depth of your garden or landscaping area, you can calculate how much soil you need.

Use this formula:

Length × Width × Depth = Cubic Feet

Make sure all three measurements are in feet.

For example, suppose a garden bed is:

10 feet long
5 feet wide
1 foot deep

Calculate:

10 × 5 × 1 = 50 cubic feet

You need 50 cubic feet of soil.

To convert that to cubic yards:

50 ÷ 27 ≈ 1.85 cubic yards

So you’d need approximately 1.85 cubic yards of soil.

How Many Cubic Feet Are in 2 Yards of Soil?

Since:

1 cubic yard = 27 cubic feet

multiply by 2:

2 × 27 = 54 cubic feet

Therefore:

2 cubic yards of soil = 54 cubic feet

How Many Cubic Feet Are in 3 Yards of Soil?

Calculate:

3 × 27 = 81

Therefore:

3 cubic yards = 81 cubic feet

How Many Cubic Feet Are in 5 Yards of Soil?

Calculate:

5 × 27 = 135

Therefore:

5 cubic yards = 135 cubic feet

This can be useful when estimating the volume of soil needed for larger landscaping projects.

How Many Cubic Feet Are in Half a Yard of Soil?

Half a cubic yard is:

0.5 × 27 = 13.5

Therefore:

½ cubic yard = 13.5 cubic feet

How Many Cubic Feet Are in a Quarter Yard of Soil?

Calculate:

27 ÷ 4 = 6.75

Therefore:

¼ cubic yard = 6.75 cubic feet

Cubic Yard to Cubic Feet Conversion Chart

Use this chart for quick reference:

Cubic Yards of Soil	Cubic Feet
0.1	2.7
0.25	6.75
0.5	13.5
0.75	20.25
1	27
1.25	33.75
1.5	40.5
2	54
2.5	67.5
3	81
4	108
5	135
10	270

The key number to remember is:

1 cubic yard = 27 cubic feet

How Much Area Does 1 Cubic Yard of Soil Cover?

The answer depends on the depth of the soil.

One cubic yard contains 27 cubic feet.

To determine the coverage area, divide 27 by the desired depth in feet.

At 1-inch depth

1 inch = 1/12 foot.

27 ÷ 1/12 = 324 square feet

So one cubic yard covers approximately:

324 square feet at 1 inch deep

At 2-inch depth

2 inches = 2/12 foot.

27 ÷ 2/12 = 162 square feet

So:

1 cubic yard covers about 162 square feet at 2 inches deep.

At 3-inch depth

3 inches = 0.25 foot.

27 ÷ 0.25 = 108 square feet

So:

1 cubic yard covers about 108 square feet at 3 inches deep.

At 4-inch depth

4 inches = 1/3 foot.

27 ÷ 1/3 = 81 square feet

So:

1 cubic yard covers about 81 square feet at 4 inches deep.

At 6-inch depth

6 inches = 0.5 foot.

27 ÷ 0.5 = 54 square feet

So:

1 cubic yard covers about 54 square feet at 6 inches deep.

Soil Coverage Chart for 1 Cubic Yard

Soil Depth	Approximate Coverage
1 inch	324 sq. ft.
2 inches	162 sq. ft.
3 inches	108 sq. ft.
4 inches	81 sq. ft.
5 inches	64.8 sq. ft.
6 inches	54 sq. ft.
8 inches	40.5 sq. ft.
12 inches	27 sq. ft.

This assumes exactly 27 cubic feet of material and doesn’t account for settling or other project-specific factors.

How Many Bags of Soil Are in One Cubic Yard?

Bag sizes vary, so there isn’t one universal answer.

For example, if each bag contains 1 cubic foot:

27 ÷ 1 = 27 bags

So you’d need:

27 one-cubic-foot bags

If each bag contains 2 cubic feet:

27 ÷ 2 = 13.5 bags

You’d need to purchase 14 bags to have enough material.

If each bag contains 1.5 cubic feet:

27 ÷ 1.5 = 18 bags

Therefore:

18 bags of 1.5 cubic feet each = 1 cubic yard

Bagged Soil vs. Bulk Soil

Soil can generally be purchased in bags or delivered in bulk.

Bagged Soil

Bagged soil is convenient for:

Small gardens
Containers
Raised beds
Small landscaping projects

You can easily calculate the total volume by adding the cubic-foot capacity of each bag.

Bulk Soil

Bulk soil is often sold by:

Cubic yard

Bulk delivery can make more sense for larger projects because purchasing dozens or hundreds of bags can become inconvenient.

How Many Bags Equal One Cubic Yard?

Here’s a quick guide:

Bag Size	Bags per Cubic Yard
0.5 cubic ft	54 bags
1 cubic ft	27 bags
1.5 cubic ft	18 bags
2 cubic ft	13.5 bags
2.5 cubic ft	10.8 bags
3 cubic ft	9 bags

Because you can’t usually purchase half a bag, round up to the next whole bag when necessary.

How Much Does a Cubic Yard of Soil Weigh?

The weight of soil varies significantly.

Factors include:

Soil type
Moisture content
Organic matter
Density
Composition
Compaction

A cubic yard of dry soil can weigh considerably less than a cubic yard of wet soil.

For this reason, it’s better not to assume that every cubic yard has the same weight.

If you’re arranging delivery or using a trailer, check the supplier’s estimated weight for the specific soil product.

Is a Yard of Soil the Same as a Yard of Dirt?

In casual conversation, people may use “soil” and “dirt” interchangeably.

In landscaping, however, products can be quite different.

Topsoil

Topsoil is generally the upper layer of soil and is often used for:

Lawns
Planting
Landscaping
Filling low areas

Garden Soil

Garden soil is formulated for growing plants and may contain organic matter or other amendments.

Potting Soil

Potting soil is designed for containers and isn’t simply ordinary ground soil.

Fill Dirt

Fill dirt is typically used for filling and grading rather than growing plants.

The volume conversion remains the same:

1 cubic yard = 27 cubic feet

But the material itself can have different properties and weights.

How Much Soil Do You Need for a Garden Bed?

Suppose you have a garden bed measuring:

12 feet × 8 feet

and you want:

6 inches of soil

First convert 6 inches to feet:

6 ÷ 12 = 0.5 foot

Then calculate:

12 × 8 × 0.5 = 48 cubic feet

Now convert to cubic yards:

48 ÷ 27 ≈ 1.78 cubic yards

You would therefore need approximately 1.78 cubic yards of soil.

If purchasing bulk soil, you might order around 1.8 cubic yards, depending on supplier practices and whether you need extra material for settling.

How to Calculate Soil for a Raised Bed

Raised beds are another common application.

Suppose your raised bed is:

4 feet long
8 feet wide
1 foot deep

Calculate:

4 × 8 × 1 = 32 cubic feet

Then:

32 ÷ 27 ≈ 1.19 cubic yards

So the bed requires approximately:

1.19 cubic yards of soil

If buying bags, you can compare that figure with the volume of individual bags.

Should You Buy Extra Soil?

In many landscaping projects, it can be sensible to allow for some extra material.

Soil may:

Settle
Compact
Spill during installation
Require leveling
Be displaced by plants or edging

The appropriate amount of extra soil depends on the project.

For a carefully measured project, a small additional amount may be enough. For irregular areas or projects where settling is expected, you may want a larger allowance.

Avoid buying substantially more than necessary simply because soil is inexpensive; excess material still needs to be stored or disposed of.

Cubic Feet vs. Square Feet

This distinction is extremely important when buying soil.

Cubic feet

Measure volume.

Example:

27 cubic feet of soil

Square feet

Measure area.

Example:

100 square feet of garden bed

You need both area and depth to determine how many cubic feet of soil are required.

For example:

100 sq. ft. × 0.25 ft depth = 25 cubic feet

Then:

25 ÷ 27 ≈ 0.93 cubic yards

So approximately 0.93 cubic yard of soil would be needed.

Cubic Yard vs. Linear Yard

A linear yard measures length:

1 yard = 3 feet

A cubic yard measures volume:

1 cubic yard = 27 cubic feet

When purchasing soil, mulch, compost, or gravel, suppliers generally use cubic yards because these materials occupy three-dimensional space.

Common Mistakes When Buying Soil

1. Forgetting the Word “Cubic”

One yard of length isn’t the same as one cubic yard of soil.

2. Confusing Square Feet With Cubic Feet

Square feet measure area, while cubic feet measure volume.

3. Ignoring Soil Depth

A 300-square-foot garden doesn’t tell you how much soil you need until you know how deep you want the soil.

4. Assuming Every Bag Is the Same Size

Always check the bag’s volume in cubic feet.

5. Ignoring Settling

Loose soil can settle after installation, especially after rain or watering.

6. Assuming Weight Is Constant

Soil weight varies considerably depending on moisture and composition.

Simple Soil Volume Formula

You can use this formula for almost any rectangular garden bed:

Cubic Feet = Length × Width × Depth

If depth is measured in inches:

Cubic Feet = Length × Width × Depth in inches ÷ 12

For example:

10 × 10 × 6 ÷ 12 = 50 cubic feet

Then convert to cubic yards:

50 ÷ 27 ≈ 1.85 cubic yards

FAQs

How many cubic feet are in 1 yard of soil?

One cubic yard of soil contains exactly 27 cubic feet.

Is one yard of soil the same as one cubic yard?

When landscaping suppliers say “one yard of soil,” they typically mean one cubic yard.

How many cubic feet are in half a yard of soil?

Half a cubic yard contains 13.5 cubic feet.

How many cubic feet are in 2 yards of soil?

Two cubic yards contain 54 cubic feet.

How many bags of soil equal one cubic yard?

It depends on bag size. For example, 27 one-cubic-foot bags equal one cubic yard.

How much area does one cubic yard of soil cover?

It depends on depth. One cubic yard covers approximately 324 square feet at 1 inch deep, 162 square feet at 2 inches, 108 square feet at 3 inches, or 81 square feet at 4 inches.

How do I calculate how much soil I need?

Multiply the area’s length × width × depth to find cubic feet, then divide by 27 to convert cubic feet to cubic yards.

Is a cubic yard the same as 27 cubic feet?

Yes. 1 cubic yard = 27 cubic feet.

Does wet soil weigh more than dry soil?

Yes. Water adds weight, so wet soil can be considerably heavier than dry or relatively dry soil.

Can I use this conversion for mulch and compost?

Yes. The volume conversion is the same: 1 cubic yard = 27 cubic feet. However, different materials have different weights and coverage characteristics.

Conclusion

So, 1 yard of soil is how many cubic feet?

The exact answer is:

1 cubic yard of soil = 27 cubic feet

The calculation is based on the fact that:

1 yard = 3 feet

Because a cubic yard has three dimensions:

3 × 3 × 3 = 27 cubic feet

Therefore, one cubic yard contains 27 cubic feet of soil.

For landscaping projects, remember that the amount of area one cubic yard covers depends on how deeply you spread it. At 1 inch deep, one cubic yard covers approximately 324 square feet. At 3 inches deep, it covers about 108 square feet, while at 6 inches deep, it covers about 54 square feet.

To calculate your own soil requirement, use:

Length × Width × Depth = Cubic Feet

Then:

Cubic Feet ÷ 27 = Cubic Yards

Whether you’re filling a raised garden bed, improving a lawn, creating a flower bed, or planning a larger landscaping project, knowing that one cubic yard equals 27 cubic feet makes it much easier to estimate how much soil to buy.