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- A 12 × 10 ft patio with 4 × 8 in brick pavers and 10% waste needs 594 pavers.
- The 6 in gravel base is about 2.22 cubic yards, or about 3.11 tons.
- The 1 in sand bed is about 0.37 cubic yards.
- Edge restraint runs 44 ft, and 594 pavers at $1.50 each cost $891.
How to use the paver calculator
Enter the area size
Type the length and width in feet. Split irregular shapes into rectangles and add them up.
Pick the paver size
Choose from common sizes such as 4 × 8 in brick pavers or 12 × 12 in squares.
Add waste
Use 5% for straight patterns, 10% for most patterns and 15% for curves or complex layouts.
Set base and sand depth
In the advanced section enter the gravel base depth, the sand depth and optionally the price per paver.
How the paver count is calculated
Paver formulas
Pavers = area × (1 + waste %) ÷ area of one paver, rounded up
Gravel (cubic yards) = area × base depth in feet ÷ 27
Sand (cubic yards) = area × sand depth in feet ÷ 27
Edge restraint = 2 × (length + width)
The tons figure assumes about 1.4 tons of crushed stone per cubic yard. This varies by material, so check with your supplier.
Worked example: a 12 × 10 ft patio
The patio uses 4 × 8 in brick pavers, 10% waste, a 6 in gravel base, a 1 in sand bed and $1.50 per paver.
- Area (12 × 10) 120 sq ft
- Area with waste 132 sq ft
- Area of one paver (32 sq in ÷ 144) 0.2222 sq ft
- Pavers (132 ÷ 0.2222) 594
- Gravel (120 × 0.5 ÷ 27) 2.22 cubic yards
- Gravel in tons (× 1.4) 3.11 tons
- Sand (120 × 1/12 ÷ 27) 0.37 cubic yards
- Edge restraint 44 ft
- Cost of pavers (594 × $1.50) $891
Buy a few extra pavers to keep for later repairs, and add polymeric sand for the joints.
Paver calculator FAQ
How many pavers do I need per square foot?
It depends on the size. A 4 × 8 in brick paver covers about 0.222 sq ft, so you need about 4.5 per square foot before waste.
How deep should the gravel base be?
Patios and walkways often use 4 to 6 inches. Driveways need more. Follow local guidance and the paver maker’s instructions.
How much sand do I need?
A bedding layer of about 1 inch is common. Multiply area by depth in feet and divide by 27 to get cubic yards.
How much waste should I allow?
About 5% for a straight pattern, 10% for most patterns and 15% for curves or complex shapes.
Do I need edge restraint?
Yes. Edge restraint holds the pavers in place. The calculator estimates the perimeter of the area.
Is the tons figure exact?
No. It assumes about 1.4 tons per cubic yard for crushed stone, which varies. Confirm with your supplier.