Paver Calculator
Choose the project shape, enter paver dimensions and joint width, and get total pavers and pack count with waste included.
Calculate
Your values convert when you switch units.
Order pavers
The formula
Project area is a rectangle (L×W), circle (π(d/2)²), or L-shape (outer rectangle minus the cut-out). Subtract areas to skip. Effective paver area includes joints: (paver length + joint) × (paver width + joint). Paver count = area ÷ effective paver area, then apply waste and round up to full packs.
Worked example
- Patio 6 m × 4 m → project area = 24 m²
- Paver 20 cm × 10 cm, joint 3 mm → effective paver area ≈ 0.0209 m²; base ≈ 24 ÷ 0.0209 ≈ 1,147.8
- With 8% waste → order = ceil(1,147.8 × 1.08) = 1,240; at 40 per pack → packs = ceil(1,240 ÷ 40) = 31
Result: Order 1,240 pavers (31 packs)
How paver quantity is calculated
The calculator estimates pieces by dividing net project area by effective paver footprint, then adds waste and optional pack rounding.
Joint width changes paver count
Wider joints increase effective coverage per paver and can reduce piece count slightly. Use the real joint spec from the installation design.
Waste depends on pattern and cuts
Straight stack patterns often need less waste than herringbone or highly curved edges. Add more waste for many edge cuts.
Packs and pallets
Suppliers often sell by pack or pallet. The calculator rounds up to full packs using your pack size input.
Interesting facts
Pattern affects breakage and cuts
Complex laying patterns typically create more offcuts than simple running bond layouts.
Jointing strategy changes final look
Narrow joints can look cleaner, while wider joints can be more forgiving for dimensional tolerances.
Edge restraints are critical
Without proper edge restraint, pavers can drift over time even if initial quantity is correct.
Compaction is part of final fit
Vibration and bedding settlement can slightly change perceived spacing after installation.
Always check nominal vs actual paver size
Some products are sold by nominal dimensions that differ slightly from physical size.
Waste margin is project-specific
Typical waste is 5–12%, but intricate layouts or many obstacles can require more.
Frequently asked questions
It depends on paver size and joint width. This calculator computes exact coverage from your inputs.
Yes. Effective paver footprint includes joints because joints occupy area in the final layout.
Use about 5% for simple stack layouts, around 6% for running bond, and 8–12% for diagonal or herringbone patterns with heavy cutting.
Yes. Choose circle mode and provide diameter.
You cannot order fractions of pavers. It rounds to whole pieces after applying waste.
If you enter pavers per pack, the calculator rounds order quantity to full packs.
Yes. Enter those as areas to skip for a tighter estimate.
Yes for quantity. Structural layer design and thickness should follow local engineering guidance.
References
- SI units for area and length Unit basis for patio and driveway paving estimates.
- Interlocking concrete pavement guidance Industry practice for paver coverage and installation allowances.