sodcalculator

10 Tech How-To

Android App Drawer: What It Is and How to Use It

Tag 10-37309 · Updated · Standard formula, shown below

Volume 9.26 yd³
Volume
250.0 ft³
Result
Lawn length
40 ft
You entered
Lawn width
25 ft
You entered
You enter
Lawn length, Lawn width, Depth
You get
Volume, Volume
Rounding
2 dp · 1 dp

The Android app drawer is the screen or menu that lists every app installed on your device, separate from the home screen. You open it by tapping the grid icon at the bottom of the home screen or by swiping up, depending on your phone. It gives you a single place to find, open, and manage all your apps without cluttering your home screen with icons.

Formula

The calculator computes the volume of soil, mulch, or other material needed to cover a rectangular lawn at a specified depth. The formula is:

Volume (cubic feet) = Length (ft) × Width (ft) × Depth (in) ÷ 12

Volume (cubic yards) = Length (ft) × Width (ft) × Depth (in) ÷ 324

Where:

  • Length – the longer side of the lawn, in feet (ft).
  • Width – the shorter side of the lawn, in feet (ft).
  • Depth – how deep you want the material, in inches (in).
  • 324 – the number of cubic inches in a cubic yard (36 × 36 × 36 ÷ 12).

The calculator returns two results: the volume in cubic yards (the primary answer) and in cubic feet (useful for smaller quantities).

Worked Example

Using the default values from the calculator (lawn length 40 ft, width 25 ft, depth 3 in):

  1. Convert depth to feet: 3 in ÷ 12 = 0.25 ft
  2. Calculate volume in cubic feet: 40 × 25 × 0.25 = 250 ft³
  3. Convert to cubic yards: 250 ÷ 27 = 9.26 yd³ (rounded to 2 decimals)

The calculator’s formula gives the same result: 40 × 25 × 3 ÷ 324 = 9.26 yd³. So you need about 9.26 cubic yards of material to cover a 40×25 ft area at 3 inches deep.

When to Use This Calculator

Use this calculator when you’re planning to buy soil, mulch, gravel, or other bulk materials for a lawn or garden bed. It helps you estimate the quantity you need so you don’t over-order or under-order. It’s also useful for estimating the amount of fill dirt for a landscaping project or the volume of compost for a vegetable garden.

Keep in mind that this calculator assumes a perfectly rectangular area with uniform depth. Real lawns may have curves, slopes, or irregular shapes, so you may need to break the area into smaller rectangles and add the results, or adjust the depth for varying terrain.

How to Read the Results

The primary result is in cubic yards, which is how bulk materials are typically sold in the US. For example, 9.26 cubic yards means you need to order about 9.5 yards (since suppliers usually require rounding up to the nearest half or full yard). The secondary result in cubic feet is handy if you’re buying bagged material (often sold in 1.5 or 2 cubic feet bags).

If you’re buying bags, divide the cubic feet result by the bag volume. For instance, 250 ft³ ÷ 1.5 ft³ per bag = 167 bags. Always round up to the next whole number.

Common Mistakes to Avoid

  • Mixing units: Ensure length and width are in feet, and depth is in inches. If you measure in meters, convert to feet first (1 m = 3.281 ft).
  • Forgetting to convert depth: Depth is in inches, not feet. If you enter 3 ft instead of 3 in, the result will be 12 times too large.
  • Rounding too early: Keep full precision in intermediate steps. Round only the final answer.
  • Ignoring compaction: Some materials (like soil) settle after being spread. You may need to order 10–15% extra to account for compaction.

Limits of the Formula

This formula assumes a flat, uniform layer. It doesn’t account for slopes, irregular shapes, or material that settles. For a lawn that’s not perfectly rectangular, divide it into smaller rectangles, calculate each, and sum the volumes. For very large areas or professional projects, consult a landscape supplier or civil engineer for a more precise estimate.

Also, the calculator outputs a mathematical volume. Actual delivery amounts may vary slightly due to moisture content or how the material is loaded. Always confirm with your supplier how much you need, especially for large projects.

Frequently Asked Questions

How many cubic feet are in a cubic yard?

There are 27 cubic feet in a cubic yard (3 ft × 3 ft × 3 ft). That’s why the formula divides by 27 after converting inches to feet.

Can I use this for a circular garden bed?

No, this calculator is only for rectangular areas. For a circle, use the formula π × radius² × depth, then convert to cubic yards. You can use a separate circular area calculator for that.

What if my lawn has a slope?

For a slope, you still need the same volume based on the surface area and depth, but the actual amount of material may be more if you’re leveling the area. You may need to measure the slope and adjust the depth accordingly.

Should I order extra material?

Yes, it’s common to order 5–10% extra to account for settling, spillage, or uneven spreading. For soil, 10–15% extra is often recommended due to compaction.

How do I convert the result to liters or cubic meters?

1 cubic yard = 0.7646 cubic meters. Multiply the cubic yard result by 0.7646 to get cubic meters. To get liters, multiply cubic meters by 1000.

What if I need a very thin layer, like 1 inch?

Enter 1 in the depth field. The calculator will still work correctly. For example, 40×25×1÷324 = 3.09 yd³.

Related

Formula used
in l | Lawn length | ft | 40 | 0 | 100000
in w | Lawn width | ft | 25 | 0 | 100000
in d | Depth | in | 3 | 0 | 120
out yd | Volume | yd³ | l * w * d / 324 | 2
out ft3 | Volume | ft³ | l * w * d / 12 | 1

Each line is one input (in, sel, list) or one result (out: label, unit, formula, decimals). How the calculators work

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

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