Construction calculator
Topsoil Calculator
Estimate topsoil volume for garden beds, lawn leveling, raised beds, and planting projects.
Material estimate
Topsoil Calculator
Garden beds often use several inches of topsoil depending on the project.
Selected bag
0.75 cu ft
0.75 cu ft bag
Estimated material needed
2.037 cu yd
Includes 10% extra. Base estimate is 1.852 cu yd.
Base cubic feet
50 cu ft
Before extra allowance
With extra
55 cu ft
Used for bag count
Estimated bags
74
At 0.75 cu ft per bag
Formula
cubic yards = square feet x depth in feet / 27
Bag count is estimated by converting cubic yards to cubic feet, applying extra allowance, then dividing by the bag size.
Common Examples
| Area | Depth | Base volume |
|---|---|---|
| 100 sq ft | 3 in | 0.926 cu yd |
| 100 sq ft | 6 in | 1.852 cu yd |
| 250 sq ft | 4 in | 3.086 cu yd |
| 500 sq ft | 6 in | 9.259 cu yd |