1 cubic yard equals exactly 27 cubic feet.
This is a volume conversion based on the fact that 1 yard equals 3 feet.
A cubic yard measures:
3 feet × 3 feet × 3 feet
Multiplying the three dimensions gives:
3 × 3 × 3 = 27 cubic feet
Therefore:
1 cubic yard = 27 cubic feet
This conversion is commonly used when buying or estimating materials such as mulch, soil, gravel, sand, stone, and concrete.
Quick Answer
| 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 |
| 10 yd³ | 270 ft³ |
Why Is a Cubic Yard 27 Cubic Feet?
A cubic measurement describes three dimensions: length, width, and height.
One yard is equal to 3 feet.
So one cubic yard is a cube that measures:
- 3 feet long
- 3 feet wide
- 3 feet high
Its volume is:
3 × 3 × 3 = 27 cubic feet
That is why the conversion is 27 cubic feet per cubic yard, rather than simply 3 cubic feet.
The word “cubic” is important because the conversion applies in all three dimensions.
How to Convert Cubic Yards to Cubic Feet
To convert cubic yards to cubic feet, multiply the number of cubic yards by 27.
Cubic Feet = Cubic Yards × 27
For example, if you have 2 cubic yards:
2 × 27 = 54 cubic feet
So:
2 cubic yards = 54 cubic feet
For 5 cubic yards:
5 × 27 = 135 cubic feet
Therefore:
5 cubic yards = 135 cubic feet
How to Convert Cubic Feet to Cubic Yards
To convert cubic feet back into cubic yards, divide by 27.
Cubic Yards = Cubic Feet ÷ 27
For example, if you have 81 cubic feet:
81 ÷ 27 = 3 cubic yards
So:
81 cubic feet = 3 cubic yards
This conversion is useful when a project is measured in cubic feet but a supplier sells the material by cubic yards.
Cubic Feet to Cubic Yards Examples
| Cubic Feet | Cubic Yards |
| 13.5 ft³ | 0.5 yd³ |
| 27 ft³ | 1 yd³ |
| 40.5 ft³ | 1.5 yd³ |
| 54 ft³ | 2 yd³ |
| 81 ft³ | 3 yd³ |
| 108 ft³ | 4 yd³ |
| 135 ft³ | 5 yd³ |
| 270 ft³ | 10 yd³ |
How Many Cubic Feet Are in a Yard of Mulch?
A cubic yard of mulch contains exactly 27 cubic feet.
For example, if a landscaping supplier sells you 3 cubic yards of mulch:
3 × 27 = 81 cubic feet
So you would receive 81 cubic feet of mulch by volume.
The weight can vary depending on the type and moisture content of the mulch, but the volume conversion remains the same.
How Many Cubic Feet Are in a Yard of Soil?
A cubic yard of soil contains 27 cubic feet.
For 2 cubic yards:
2 × 27 = 54 cubic feet
For 4 cubic yards:
4 × 27 = 108 cubic feet
The type of soil does not change the volume conversion. However, different soil products can have different weights because of differences in moisture, composition, and density.
How Many Cubic Feet Are in a Yard of Gravel?
One cubic yard of gravel equals 27 cubic feet.
For example:
3 cubic yards × 27 = 81 cubic feet
So 3 cubic yards of gravel has a volume of 81 cubic feet.
Although gravel density affects its weight, it does not change the cubic-yard-to-cubic-foot conversion.
How Many Cubic Feet Are in a Yard of Concrete?
One cubic yard of concrete contains 27 cubic feet.
Concrete suppliers commonly sell ready-mix concrete by the cubic yard, while smaller calculations may be made in cubic feet.
For example, if a project requires 2 cubic yards:
2 × 27 = 54 cubic feet
So the required volume is 54 cubic feet.
How Many Cubic Feet Does a Cubic Yard Cover?
A cubic yard does not have a fixed number of square feet of coverage because coverage depends on depth.
For example, 1 cubic yard contains 27 cubic feet.
If spread 3 inches deep:
3 inches ÷ 12 = 0.25 feet
Then:
27 ÷ 0.25 = 108 square feet
So 1 cubic yard can cover approximately 108 square feet at a depth of 3 inches.
Coverage of 1 Cubic Yard
| Depth | Approximate Coverage |
| 1 inch | 324 sq ft |
| 2 inches | 162 sq ft |
| 3 inches | 108 sq ft |
| 4 inches | 81 sq ft |
| 6 inches | 54 sq ft |
| 12 inches | 27 sq ft |
These figures assume an even layer and do not account for settling, compaction, or material loss.
How Do You Calculate Cubic Yards for a Project?
For a rectangular area, first calculate cubic feet:
Length × Width × Depth = Cubic Feet
Make sure all three measurements use feet.
Then convert cubic feet to cubic yards:
Cubic Feet ÷ 27 = Cubic Yards
For example, suppose a garden bed is:
- 20 feet long
- 10 feet wide
- 3 inches deep
Convert 3 inches to feet:
3 ÷ 12 = 0.25 feet
Calculate the volume:
20 × 10 × 0.25 = 50 cubic feet
Convert to cubic yards:
50 ÷ 27 ≈ 1.85 cubic yards
So the project requires approximately 1.85 cubic yards of material.
When ordering bulk material, you would generally purchase enough to cover the full requirement, with an additional allowance if settling or waste is expected.
Is a Cubic Yard Bigger Than a Cubic Foot?
Yes.
A cubic yard contains 27 cubic feet.
That means:
1 cubic yard = 27 cubic feet
and:
1 cubic foot = 1/27 cubic yard
A cubic yard is therefore significantly larger than a cubic foot.
Think of a cubic foot as a box measuring 1 foot on each side, while a cubic yard is a box measuring 3 feet on each side.
Common Cubic Yard Conversions
The most useful conversions are:
| Cubic Yards | Cubic Feet |
| 0.1 | 2.7 |
| 0.25 | 6.75 |
| 0.5 | 13.5 |
| 0.75 | 20.25 |
| 1 | 27 |
| 2 | 54 |
| 3 | 81 |
| 4 | 108 |
| 5 | 135 |
| 6 | 162 |
| 8 | 216 |
| 10 | 270 |
You can calculate any other amount by multiplying the cubic-yard value by 27.
Common Mistakes When Converting Cubic Yards
Confusing Yards With Cubic Yards
A linear yard measures length. A cubic yard measures volume.
1 yard = 3 feet, but 1 cubic yard = 27 cubic feet.
Forgetting the Third Dimension
For volume, length, width, and height all matter.
You cannot convert cubic yards to cubic feet by multiplying by only 3.
The correct calculation is:
3 × 3 × 3 = 27
Mixing Inches and Feet
If the dimensions are given in inches, convert them to feet before calculating cubic feet.
For example, 6 inches equals:
6 ÷ 12 = 0.5 feet
This prevents major errors in material estimates.
Frequently Asked Questions
How many cubic feet are in a cubic yard?
There are exactly 27 cubic feet in 1 cubic yard.
How many cubic feet are in 2 cubic yards?
Two cubic yards equal:
2 × 27 = 54 cubic feet
How many cubic feet are in 3 cubic yards?
Three cubic yards equal:
3 × 27 = 81 cubic feet
How many cubic feet are in half a cubic yard?
Half a cubic yard equals:
0.5 × 27 = 13.5 cubic feet
How many cubic yards are 100 cubic feet?
Divide by 27:
100 ÷ 27 ≈ 3.70 cubic yards
So 100 cubic feet is approximately 3.7 cubic yards.
Is 1 cubic yard the same as 1 yard?
No. A yard measures length, while a cubic yard measures volume.
One cubic yard is a three-dimensional space measuring 3 feet × 3 feet × 3 feet.
How many cubic feet are in a yard of mulch?
One cubic yard of mulch contains 27 cubic feet.
How many cubic feet are in a yard of dirt?
One cubic yard of dirt contains 27 cubic feet by volume.
How many square feet does 1 cubic yard cover?
It depends on the depth. One cubic yard covers approximately 108 square feet at 3 inches deep and 81 square feet at 4 inches deep.
Conclusion
So, a cubic yard is how many cubic feet?
The exact answer is:
1 cubic yard = 27 cubic feet
The conversion works because one yard equals 3 feet, and a cubic measurement has three dimensions:
3 × 3 × 3 = 27
To convert cubic yards to cubic feet:
Cubic Yards × 27 = Cubic Feet
To convert cubic feet to cubic yards:
Cubic Feet ÷ 27 = Cubic Yards
This conversion is especially useful when estimating mulch, soil, gravel, sand, concrete, and other bulk materials. Remember that 27 cubic feet make one cubic yard, regardless of the material being measured.
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