Paver Calculator — How Many Pavers Do I Need?
Calculate the number of patio pavers or bricks needed for any area, including waste factor.
Your Results
132
Pavers Needed
120
Without Waste
1.000
sq ft / paver
Paver Count at Different Waste Factors
| Waste % | Base Count | Total Needed |
|---|---|---|
| 0% waste | 120 | 120 |
| 5% waste | 120 | 126 |
| 10% waste | 120 | 132 |
| 15% waste | 120 | 138 |
| 20% waste | 120 | 144 |
Formula
Formula: Pavers Needed = ceil(Area sq ft ÷ Paver Area sq ft) × (1 + Waste% ÷ 100)
Paver Area (sq ft) = (Paver Length in × Paver Width in) ÷ 144
Worked Example
Example: 20 × 12 ft patio, 6×9 in pavers, 10% waste.
Patio area = 240 sq ft; Paver area = 54÷144 = 0.375 sq ft
Base = ceil(240÷0.375) = 640; With 10% = 704 pavers
Frequently Asked Questions
How many pavers do I need for a 10×10 patio?
A 10×10 ft patio is 100 sq ft. With 12×12 in pavers you need 100 base pavers. Add 10% for cuts: 110 total.
What percentage extra pavers should I buy?
Simple rectangle: 5–8%. Diagonal or herringbone: 10–15%. Irregular shapes: 15–20%.
How do I calculate pavers per square foot?
Divide 144 by the paver area in sq in. E.g. 6×9 in paver = 54 sq in. 144÷54 = 2.67 pavers/sq ft.
What is the most common paver size?
4×8 in (brick), 12×12 in (square), 16×16 in (large square), and 6×9 in are most popular.
How much sand under pavers?
1 inch of compacted bedding sand beneath pavers. For 100 sq ft: ~0.31 cubic yards of sand, plus 4–6 inch compacted gravel base.