Topsoil Calculator

Estimate topsoil volume for multiple areas, then convert it to cubic yards, bags, and an optional cost comparison.

Measurement units

Example measurements. Replace the sample values with your own project measurements before calculating.

Measure the soil areas

Add each bed, lawn section, or planting area that needs topsoil.

1 area
Front bed
Calculated area1,000 sq ft

Exclude uncovered spaces

Optional. Subtract patios, paths, beds, openings, or other areas that do not need this material.

0 exclusions

No exclusions added yet.

Set depth and allowance

Depth drives the volume. Add a settlement allowance if the soil will compact after placement.

Measure the finished depth, before any settling.

Adds a practical buffer for cuts, settling, or overlap.

Advanced settingsProduct coverage, packaging, and optional pricing

Packaging and pricing

Optional supplier details turn the volume into bags and a material-cost comparison.

Leave blank when ordering bulk soil.

Optional. Added once to the estimate.

How this topsoil estimate works

Use this calculator to turn several measured beds or lawn sections into a volume you can compare with bulk soil or bagged soil. Start with the finished depth you want, then make the allowance and package details visible.

How to measure

  1. Measure the length and width of every bed or lawn section that needs soil.
  2. Enter the finished soil depth and choose the matching depth unit.
  3. Add paths, patios, or other uncovered spaces as exclusions, then enter bag volume only if you are buying bags.

How the estimate works

Multiply net area by depth to get base volume. Convert the result to cubic yards or cubic meters, then apply the selected allowance.

Worked example

At 1,000 sq ft and 3 inches deep, the base volume is 250 cu ft, or 9.26 yd³. A 10% allowance raises that to 275 cu ft, or about 10.19 yd³.

Before you buy

Use bulk pricing when a delivered cubic-yard price is available. For bags, use the volume printed on the bag and round to whole bags. Compare the supplied inputs rather than assuming one format costs less.

Package and supplier details

Bag fill volume, bulk delivery terms, soil blend, moisture, and settling can vary. Use the product label or supplier information for the package and price fields.

Assumptions

  • The entered depth is applied evenly across the net area.
  • The allowance is a planning buffer for settlement or small measurement differences.
  • Bag and bulk cost are compared only when the matching prices are entered.

Limitations

This is a level-volume estimate. It does not model slopes, grading, compaction, soil blends, or final elevation checks.

Questions about topsoil

What depth should I enter?

Enter the finished depth you want the soil to reach. If the depth changes across the area, split it into separate rows or use a reasonable planning average.

Should I use the bag volume or the bag weight?

Use the volume printed on the product for a bag count. Weight alone does not tell the calculator how much space the bag will fill.

Why is the bulk number different from the bag number?

They are different purchase units. Bulk soil is planned by volume, while bagged soil is rounded to whole bags using the bag volume you enter.