Beds / Areas
Rectangle L × W × Depth
Circle π × (D/2)² × Depth
Border/Annulus π × (Do/2)² − π × (Di/2)²
Triangle ½ × Base × Height × Depth
Trapezoid ½ × (a+b) × Height × Depth
Custom Area Area × Depth
Example Data Table
These example rows demonstrate typical landscape beds. Click Load Example above to copy them into the calculator.
| # | Shape | Dimensions | Depth | Notes |
|---|---|---|---|---|
| 1 | Rectangle | Length 12 ft, Width 4 ft | 6 in | Veggie bed |
| 2 | Circle | Diameter 10 ft | 4 in | Flower ring |
| 3 | Border/Annulus | Outer 16 ft, Inner 12 ft | 3 in | Tree border |
Formula Used
- Rectangle: Area = L × W
- Circle: Area = π × (D/2)²
- Annulus: Area = π × (Do/2)² − π × (Di/2)²
- Triangle: Area = ½ × Base × Height
- Trapezoid: Area = ½ × (a + b) × Height
- Custom Area: Use entered area directly
- Volume (m³): Area (m²) × Depth (m)
- Waste factor: Volume × (1 + Waste%)
- Compaction factor: Volume × Compaction
- Unit conversions: 1 m³ = 35.3147 ft³ = 1.30795 yd³ = 1000 L
- Weight: Mass = Density × Volume. Density presets selectable below.
How to Use
- Choose your length and depth units.
- Add one or more beds; pick a shape and enter dimensions.
- Set waste allowance, compaction, density, bag size, and truck capacity.
- Press Calculate to see totals in multiple units.
- Export the results as CSV or print/save as a PDF.
FAQs
For typical beds, 5–10% covers spillage and uneven surfaces. Complex borders or rough grading may need 10–15%.
Soil settles after placement. A compaction factor > 1.0 increases ordered volume to account for settlement.
Enter a per-bag volume in liters or cubic feet. The tool divides required volume by bag volume and rounds up.
Loose topsoil ≈ 1000 kg/m³, loam ≈ 1200 kg/m³, moist clay ≈ 1400 kg/m³. Ask suppliers for exact values.
Yes. Use the “Custom Area” shape to input an area directly in your selected length unit squared.
Units & Options
Liters
Cubic feet
m³ per load
Results
Total Volume
0.000 m³
0.000 yd³ • 0.000 ft³ • 0 L
Estimated Weight
0 kg
0 tonnes • 0 lb
Bag Count
—
Enter bag size
Truck Loads
—
Based on truck capacity
Per‑Row Breakdown
| # | Shape | Area (m²) | Depth (m) | Volume (m³) | Notes |
|---|---|---|---|---|---|
| Total before adjustments | 0.000 | ||||
| After waste & compaction | 0.000 | ||||