Paver Calculator – Estimate Pavers, Sand & Cost
Our paver calculator helps homeowners and contractors quickly estimate the number of pavers required for any patio, driveway, walkway, or pool deck project. Simply enter your area dimensions, paver size, and joint width to get an accurate count including a recommended waste buffer. You'll also get sand base quantities and an optional cost estimate to help plan your budget.
The length of the area you want to pave in feet.
The width of the area you want to pave in feet.
Length of a single paver in inches.
Width of a single paver in inches.
The gap between pavers (typically 1/4 inch for standard joints).
Recommended sand bedding depth is 1 inch for most paver projects.
Cost of a single paver (optional, used for cost estimate).
Add extra pavers to account for cuts, breakage, and future repairs.
Your results will appear here
How to Use This Calculator
1. Enter the length and width of the area you want to pave in feet. 2. Input the dimensions of a single paver in inches — check the product label or measure the paver directly. 3. Set the joint width (the gap between pavers) — typically 1/4 inch for standard installations. 4. Enter the desired sand base depth (1 inch is standard for most residential projects). 5. Optionally enter the price per paver to get a total material cost estimate. 6. Select a waste/overage percentage — 10% is recommended for simple rectangular areas, 15–20% for curves or complex patterns. 7. Click Calculate to instantly see how many pavers you need, how much sand to order, and your estimated cost.
How the Paver Calculator Works
The calculator uses the dimensions of your project area and individual pavers to determine how many units you need. It accounts for joint spacing and adds an overage percentage to cover cuts, breakage, and future repairs.
Step 1: Calculate Total Area
The total project area is simply:
Area = Length × Width
For irregular shapes, break the area into rectangles, calculate each section separately, and add the results together before entering a combined figure.
Step 2: Coverage per Paver
Each paver occupies a slightly larger footprint when accounting for the joint gap:
Effective Paver Length = Paver Length + Joint Width
Effective Paver Width = Paver Width + Joint Width
Coverage = (Effective Length × Effective Width) in sq ft
Step 3: Base Paver Count + Waste
Divide the total area by the coverage per paver, then multiply by the waste factor:
Pavers Needed = ⌈(Total Area / Coverage) × (1 + Waste%/100)⌉
Always round up to the nearest whole paver.
Step 4: Sand Base Volume
A compacted sand bedding layer is required beneath the pavers. The volume is:
Sand Volume (cu ft) = Total Area × (Sand Depth / 12)
Sand Volume (cu yd) = Sand Volume (cu ft) / 27
Most suppliers sell sand by the cubic yard, so the calculator provides both units for convenience.
Choosing the Right Waste Factor
- 5% – Simple, straight-edged rectangular areas with minimal cutting.
- 10% – Standard recommendation for most residential projects.
- 15% – Areas with curves, angles, or diagonal patterns requiring extra cuts.
- 20% – Complex designs, herringbone patterns, or irregularly shaped spaces.
Sand Base Best Practices
- Use coarse, washed concrete sand (ASTM C33) for the bedding layer.
- A 1-inch compacted sand layer is standard for patios and walkways.
- For driveways subject to vehicle traffic, increase the base depth and use a compacted gravel sub-base beneath the sand.
- Screed the sand perfectly level before laying pavers to ensure a flat finished surface.