MEASURE ONCE. PLAN YOUR PURCHASE.

Soil and Topsoil calculator.

Fill rectangular beds or round containers, pool their volume and calculate soil bags.

LANDSCAPING

Your inputs

Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.

Container shape

Volume printed on a soil bag

ft³/bag

Waste allowance

Shortcuts only; choose your own allowance above.

Where to get this value

Enter your own allowance. Presets are input shortcuts, not a construction recommendation.

Bed or container 1

Length

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Width

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Fill depth

Where to get this value

Measure this dimension in your plan or on site and use the displayed unit. For irregular shapes, divide the geometry into the supported sections.

Identical containers

YOUR ESTIMATE

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A clear estimate starts here.

Enter your dimensions and product details to see the quantity and purchase breakdown.

CONTINUE YOUR PLAN

Find the next material.

Keep the quantity, then use another tool for the remaining parts of your purchase.

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Formula and assumptions

BEHIND THE NUMBERS

How this calculation works.

Fill depth and container shape are supplied by you. Topsoil and garden soil are product choices within this tool; no separate duplicate URL is generated.

Bags = ceil(Σ(container area × fill depth × count) × allowance / bag volume)Calculated with normalised units

A worked example

Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.

Container shape: Rectangular
Volume printed on a soil bag: 50 L/bag
Waste allowance: 10 %
Length: 2 m
Width: 1 m
Fill depth: 200 mm
Identical containers: 2

Soil bags to purchase: 18 bags

Before you purchase

Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.

No growing-depth or soil-mixture recommendation is made.

Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.

Check your purchase assumptions

Use inside planter dimensions for fill and outside dimensions for board cuts Calculate mulch top-up from the existing layer Assign existing fill before adding bed layers

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Soil and Topsoil calculator.

Your inputs

A clear estimate starts here.

Find the next material.

How this calculation works.

A worked example

Before you purchase

Check your purchase assumptions

Keep the project moving.

Connected work guides and comparisons

Prepare your material measurements and product data

Compare supplied alternatives and quantity changes