Topsoil Calculator

Estimate how much topsoil is needed for a given area and depth.

Total Volume (Cubic Feet):

Total Volume (Cubic Yards):

Soil Bag Calculation

Number of 0.5 Cubic Foot Bags:

Number of 1 Cubic Foot Bags:

Number of 1.5 Cubic Foot Bags:

Measure the Area

Start by measuring the dimensions of the area you wish to cover. Use a tape measure to find the length and width of the space. For irregularly shaped areas, break them down into smaller rectangles or squares and calculate the area for each section.

Depth

The depth of the topsoil layer can vary depending on the type of project. A general guideline is:

  • New gardens: 2-3 inches
  • Lawns: 4-6 inches
  • Vegetable gardens: 6-12 inches

Volume

Topsoil formula used in estimate:

Volume (cubic feet) = Length (ft) x Width (ft) x Depth (ft)

For example, if your garden measures 10 feet long, 5 feet wide, and you want a depth of 3 inches (0.25 feet), the calculation would be:

Volume = 10 x 5 x 0.25 = 12.5 cubic feet

Converting to Cubic Yards

Since topsoil is often sold by the cubic yard, the calculator convert cubic feet to cubic yards using the conversion:

1 cubic yard = 27 cubic feet

Continuing with the previous example:

Cubic yards = 12.5 / 27 ≈ 0.46 cubic yards

Soil composition should ideally contain 1-5% organic matter for optimal plant growth.

Factors to Consider 

FactorDescriptionImportance
Soil TypeDifferent soil types (sandy, clay, loamy) have varying drainage and nutrient retention properties.High
Organic MatterTopsoil should contain organic matter to support plant growth.High
pH LevelThe pH level affects nutrient availability; most plants prefer a pH between 6.0 and 7.5.Medium
ContaminantsEnsure the topsoil is free from contaminants that could harm plants or the environment.High
SourceConsider where the topsoil is sourced from; local sources may be more suitable for your climate.Medium

The Importance of Good Soil

Before starting to grow, it’s essential to assess the condition of the soil in your garden. The best soil is a blend of mineral-rich dirt and organic matter. In my garden, I compost as much as possible to enrich the soil with nutrients. I use both hot composting for food scraps and cold composting for organic garden waste.

If you don’t have the time or space to compost, you can purchase compost from garden centers or use community composting programs. Learn more about community composting here: Learn more about community composting here.

https://youtube.com/watch?v=vI7ztOslw3U%3Ffeature%3Doembed

Affiliate Disclosure: As an Amazon Associate, I earn from qualifying purchases at no extra cost to you.

Hot Composting bin

One insulated compost bin designed for cold regions is the Exaco Aerobin 400. It holds 113 gallons and doesn’t need turning thanks to its patented “lung” system. Plus, the built-in reservoir collects compost tea, which can be used as fertilizer.

Aerobin Compost Bin

The Exaco Aerobin 400 is available for $343.79. Check the latest price on Amazon.

Where I live I get a large tax refund every year for composting may own organic waste. Due to this saving I was able to break even on the cost at only two year use. I recommend you to check with your local government if you can receive any tax refund.

Pros and Cons of buying Topsoil

ProsCons
Rich in nutrients, promoting healthy plant growth.Can be expensive, especially in large quantities.
Improves soil structure and drainage.May contain weeds or pests if not sourced properly.
Enhances the aesthetic appeal of gardens and landscapes.Requires regular maintenance and replenishment.
Can be tailored to specific plant needs by mixing with other soil types.Transporting large amounts can be logistically challenging.
BeeJay
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