Landscaping Calculator
Calculate landscaping — bulk yd³, bags, ft³/m³, cost per yd³/bag with waste for US coverage. Enter landscaping dimensions to get instant results. Enter dimensions, select units and add waste to get instant, supplier-ready numbers.
Enter dimensions above to calculate
- Enter values to see step-by-step substitution.
Engineering Assumptions:
- Rectangular beds with uniform placed depth. Deduct large excluded areas by splitting the bed into smaller rectangles.
- Depth is a user input; plant needs and mulch type vary. Keep mulch away from trunks, stems and siding.
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TOP VIEW — Length × Width
SECTION — Placed mulch depth 6in
What Is This Calculator?
The Landscaping Calculator — Hardscape for US yards — pavers, base, sand, mulch and retaining walls.
What Does It Calculate?
- Paver count from area / paver area
- Base gravel and sand volume
- Mulch yards vs bags
How to Use the Calculator
- Measure Patio 12x10 ft =120 ft2, paver 12x12 in — use feet for length/width and inches for thickness where typical.
- Enter values and select units. The calculator converts to feet before calculating (inches /12, yards x3).
- Adjust waste % and optional price, then click Calculate. Results show with waste included.
- Use Reset to clear and try another size.
Formula & Engineering Methodology
Mulch volume = length × width × depth × beds; bags = ceil(volume × allowance factor / bag volume).
- Area — Length*Width ft2
- Paver area — 12x12=1 ft2, 4x8=0.222 ft2
All units convert to exact standard engineering dimensions (NIST SP 811) before calculation to ensure consistency between US Customary and Metric measurements.
Worked Example
Example: Patio 12x10 ft =120 ft2, paver 12x12 in
| STEP | VALUE |
|---|---|
| Pavers | 120/1 =120 |
| With 10% waste | 132 pavers |
| Base 4 in | 120*0.333/27 =1.48 yd3 |
Construction Information
Material: Pavers 12x12 in =1 ft2, base 4 in gravel, 1 in sand. Mulch 2 ft3 bag =8 ft2 at 3 in.
Base 4 in patio, 6-8 in driveway. Sand 1 in screeded. Waste 10% rect, 15% curve.
Material Information
Pavers 12x12 in =1 ft2, base 4 in gravel, 1 in sand. Mulch 2 ft3 bag =8 ft2 at 3 in.
Waste & Overages
Add 10% for cuts and curves — 15% for radial patterns.
Practical Tips
- Compact base in 2 in lifts
- Edge restraint prevents shift
Common Mistakes
- No base — pavers settle
- Thin mulch — weeds poke through
Assumptions & Engineering References
- Rectangular beds with uniform placed depth. Deduct large excluded areas by splitting the bed into smaller rectangles.
- Depth is a user input; plant needs and mulch type vary. Keep mulch away from trunks, stems and siding.
This calculator provides an estimate based on your inputs. Actual requirements vary by site, material and installation. For code-regulated or load-bearing work, consult a qualified professional.
Calculations run 100% in your browser — zero tracking of your dimensions or input data.
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Frequently asked questions
What does the Landscaping Calculator calculate?
The Landscaping Calculator estimates landscaping quantity for US jobs — Paver count from area / paver area, Base gravel and sand volume, Mulch yards vs bags. Enter dimensions, choose units, add waste and price to get instant results.
How do I measure for landscaping?
Measure patio 12x10 ft =120 ft2, paver 12x12 in on site. Use the unit selectors — the tool converts inches→feet (÷12) and yards→feet (×3) before math. For non-rectangular, split into rectangles and add.
How much waste should I add?
Add 10% for cuts and curves — 15% for radial patterns.
How accurate is this landscaping estimate?
Math is exact for your inputs. Actual needs vary by site, material and installation. Add 5–10% waste for rectangular, 10–15% for irregular.
About Calculator Street
Built by Vipul Otari for US homeowners & contractors. Calculator inputs are processed in your browser. Estimates depend on your measurements, product specifications and the assumptions shown on this page. Confirm order quantities with your supplier and structural requirements with your project designer. Page updated: 2026-09-11.