This paver patio calculator tells you how many pavers you need from your patio size and the size of a single paver. Enter the dimensions above to get the paver count, total area, and a recommended waste allowance for cuts and breakage.
How to use this calculator
- Enter the patio length and width in feet.
- Enter one paver’s length and width in inches.
- Read the number of pavers needed, including waste.
How is the paver count calculated?
The count is the patio area divided by the area of a single paver, with a waste factor added:
Patio area (ft²) = Patio Length × Patio Width Paver area (ft²) = (Paver L ÷ 12) × (Paver W ÷ 12) Pavers needed = Patio area ÷ Paver area × (1 + waste %)
- Waste % — 5% for straight layouts, up to 10% for diagonal or herringbone
Example calculation
For a 12 ft × 10 ft patio using 12″ × 12″ pavers (1 ft² each):
- Patio area = 12 × 10 = 120 ft²
- Pavers = 120 ÷ 1 = 120
- Add 10% waste → order 132 pavers
With smaller 6″ × 9″ pavers (0.375 ft² each) the same patio needs 120 ÷ 0.375 = 320 pavers, plus waste.
Don’t forget the base materials
- Gravel base: 4–6 inches of compacted crushed stone.
- Bedding sand: about 1 inch under the pavers.
- Edge restraints and joint sand to lock the pavers in place.
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Frequently Asked Questions
How many pavers do I need for a patio?
Divide the patio area by the area of one paver. A 120 sq ft patio with 12 x 12 inch pavers needs 120 pavers, plus 5 to 10 percent for cuts.
How much extra should I order for cuts and breakage?
Add 5 percent for a simple square or rectangular layout, and up to 10 percent for diagonal, herringbone, or curved patterns that need more cutting.
How do I calculate paver patio area?
Multiply the patio length by its width in feet. For irregular shapes, split the area into rectangles, calculate each, and add them together.