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SoilYardage Topsoil, Mulch & Gravel Estimator

Dirt Calculator

Quickly estimate cubic yards, tons, and bags for general dirt backfill projects.

Select Your Material
Quick Project Presets
1

Choose Shape

2

Enter Dimensions

Waste & Compaction Allowance

YOUR RESULTS

2.44
Cubic Yards (240 sq ft coverage)
Weight
≈ 2.44
tons
40-lb Bags
≈ 165
bags needed
80-lb Bags
≈ 83
bags needed
$
Estimated Material Cost $146 – $244
Bulk Pricing

MATERIAL PRICE

(per cubic yard)

$
$
Total Estimated Cost $186.40

HELPFUL LANDSCAPING INFORMATION

How It Works

We use standard geometric formulas: (Length × Width × Depth in feet) ÷ 27 to calculate exact volume in cubic yards.

Depth Guide

Topsoil: 3–4 inches
Mulch: 2–3 inches
Gravel / Base: 2–4 inches

Buying Tips

Always round up your volume by 5%–10% to account for soil compaction, ground settling, and uneven grade slopes.

Bags vs Bulk

For projects requiring over 2 cubic yards (approx. 54 bags), ordering bulk truck delivery is significantly cheaper than buying bags.