Paver Patio Calculator — Pavers, Base & Sand
Enter your patio size and paver dimensions to get the number of pavers, plus the gravel base, bedding sand, and edging your project needs.
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How it works
pavers = patio area (sq ft) ÷ paver area (sq ft); base gravel (cu yd) = area × depth_in ÷ 12 ÷ 27
Pavers by size for a 12 × 12 ft patio (144 sq ft)
| Paver size | Coverage each | Pavers per sq ft | For 144 sq ft |
|---|---|---|---|
| 4 in × 8 in | 0.22 sq ft | 4.5 | 648 |
| 6 in × 6 in | 0.25 sq ft | 4.0 | 576 |
| 6 in × 9 in | 0.375 sq ft | 2.67 | 384 |
| 12 in × 12 in | 1.0 sq ft | 1.0 | 144 |
| 12 in × 24 in | 2.0 sq ft | 0.5 | 72 |
Counts are an exact fit — add 5–10% for cuts, breakage, and patterns that mix sizes. A 12-in × 12-in paver works out to exactly 1 paver per square foot.
Frequently asked questions
How many pavers do I need per square foot?
It depends on paver size: 4×8-inch pavers (the common brick size) take about 4.5 per square foot, 6×6-inch take 4, 12×12-inch take exactly 1, and 12×24-inch take 0.5. Multiply by your patio square footage and add ~10% for cuts.
How many pavers for a 12×12 patio?
A 12 ft × 12 ft patio is 144 sq ft. That is about 648 of the 4×8-inch pavers, 576 of the 6×6-inch, 144 of the 12×12-inch, or 72 of the 12×24-inch — plus 5–10% for cuts and breakage.
How much gravel base and sand do I need under pavers?
Plan a 4–6 inch compacted gravel base and a 1-inch sand setting bed. For a 144 sq ft patio, a 4-inch base is about 1.8 cubic yards of gravel and the 1-inch sand layer about 0.44 cubic yard. The calculator above figures both from your patio size.