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Construction & Home
Paver Calculator — How Many Pavers for a Patio or Walkway
How many pavers for a patio, walkway, driveway or pool deck
A paver calculator answers the one question that decides your whole hardscape order: how many pavers do I need? Order short and you're back at the yard mid-project hoping the same dye lot is still in stock; order blind and you've got two pallets of leftover concrete pavers cluttering the garage. This tool does the area math, adds a waste factor for cuts and breakage, and always rounds up to whole pavers, because you can't buy two-thirds of a brick.
The method is area divided by paver coverage. First, the patio: area (sq ft) = length × width. A 10 ft × 10 ft patio is 100 sq ft. Next, how much each paver covers. Paver dimensions come in inches, and there are 144 square inches in a square foot, so:
Paver area (sq ft) = (paver length in × paver width in) ÷ 144.
A 12 × 12 in paver covers (12 × 12) ÷ 144 = 1.00 sq ft. A common 4 × 8 in brick paver covers (4 × 8) ÷ 144 = 0.2222 sq ft — so it takes about 4.5 of them per square foot.
Then the count, with waste rolled in before rounding:
Pavers = ceil( area ÷ paver area × (1 + waste) ).
Work the verification case: a 100 sq ft patio with 12 × 12 in pavers at 10% waste = ceil(100 ÷ 1.00 × 1.10) = 110 pavers. Switch to 4 × 8 in pavers and the same patio needs ceil(100 ÷ 0.2222 × 1.10) = 495 pavers — smaller units always mean a higher count and more cuts.
Waste factor matters more here than on most jobs because every edge, curve and corner forces a cut, and cut pavers can't always be reused. Use 5% for a simple running-bond field with straight edges, 10% as the default, and 10–15% for herringbone, basketweave, circular kits or any diagonal pattern, where angled cuts waste more material. Buying a few extra now is cheap insurance: keep them for future repairs, since matching color years later is nearly impossible.
Remember the pavers are only the surface. A proper installation also needs a compacted base of 4–6 in of crushed gravel topped with about 1 in of bedding sand, plus polymeric sand to lock the joints — size those separately with a gravel calculator and a sand calculator. This tool covers the paver count and an optional cost estimate so you can price the field before you commit to a pattern.
📖 See also: How to Calculate a Tip (and Split the Bill)
Calculator
Fill in the fields and click "Calculate" for instant results.
📰 Formula
• Patio area (sq ft) = length (ft) × width (ft) • Paver area (sq ft) = (paver length in × paver width in) ÷ 144 • With waste: total = area × (1 + waste% ÷ 100) • Pavers = ceil( area ÷ paver area × (1 + waste% ÷ 100) ) • 144 square inches = 1 square foot • Waste guide: 5% running bond · 10% default · 10–15% herringbone / circular / curved • Base (size separately): 4–6 in compacted gravel + ~1 in bedding sand
📰 Formula
• Patio area (sq ft) = length (ft) × width (ft) • Paver area (sq ft) = (paver length in × paver width in) ÷ 144 • With waste: total = area × (1 + waste% ÷ 100) • Pavers = ceil( area ÷ paver area × (1 + waste% ÷ 100) ) • 144 square inches = 1 square foot • Waste guide: 5% running bond · 10% default · 10–15% herringbone / circular / curved • Base (size separately): 4–6 in compacted gravel + ~1 in bedding sand
🧪 Worked examples
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Example 2
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Example 3
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Example 4
⚠️ Common mistakes
- Forgetting to divide paver inches by 144 — a 6×6 in paver is 0.25 sq ft, not 36 sq ft.
- Mixing units: paver size is in inches but the patio length and width are in feet.
- Skipping the waste factor, so edge cuts and breakage leave you short of a full field.
- Using only 5% waste on a herringbone or circular pattern that really needs 10–15%.
- Rounding the paver count down — you can't buy a partial paver, always round up.
💡 Tips
- Buy one extra box beyond the rounded count and keep it; matching a dye lot years later is nearly impossible.
- Smaller pavers (4×8) mean far more pieces and more cuts than large 12×12 units for the same area.
- Bump the waste factor to 15% for herringbone, basketweave, circular kits or heavily curved edges.
- Pavers are just the top layer — size 4–6 in of gravel base and ~1 in of bedding sand separately.
- Add the waste before rounding to whole pavers, not after, so the cushion isn't lost in rounding.
Embed this calculator on your site
Copy the code below and paste it into the HTML of your site or blog.
<iframe src="https://www.calcnimbus.com/embed/pavers-calculator" width="100%" height="500" frameborder="0" style="border:1px solid #eee;border-radius:12px"></iframe>
❓ Frequently asked questions
How many pavers do I need for a patio?
Find the patio area (length × width in feet), then divide by the area each paver covers and round up. A 100 sq ft patio with 12×12 in pavers (1 sq ft each) plus 10% waste needs 110 pavers.
How do I calculate how many pavers per square foot?
Divide 1 by the paver's area in square feet. A 12×12 in paver covers 1 sq ft (1 per sq ft); a 4×8 in paver covers 0.222 sq ft, so it takes about 4.5 pavers per square foot.
How many 4x8 pavers are in a square foot?
A 4×8 in paver covers (4 × 8) ÷ 144 = 0.2222 square feet, so one square foot needs 1 ÷ 0.2222 = 4.5 pavers before any waste allowance.
How many pavers do I need for a 10x10 patio?
A 10 ft × 10 ft patio is 100 sq ft. With 12×12 in pavers and 10% waste that's 110 pavers; with smaller 6×6 in pavers (0.25 sq ft each) it's about 440 pavers.
How much waste should I add for pavers?
Use about 5% for a simple running-bond field with straight edges, 10% as a general default, and 10–15% for herringbone, basketweave, circular kits or layouts with many curved or angled cuts.
How much gravel and sand go under pavers?
A typical base is 4–6 inches of compacted crushed gravel topped with about 1 inch of bedding sand. Calculate those volumes separately with a gravel calculator and a sand calculator.
Why does the paver calculator round up?
Pavers are sold as whole units, so a fractional result has to round up to the next whole paver. Rounding down would leave you short, and you can't install part of a paver.
How do I figure pavers for a walkway?
Treat the walkway as a long rectangle: area = length × width in feet. A 3 ft × 40 ft path is 120 sq ft. Divide by your paver's coverage, add waste, and round up to whole pavers.
Do I need more pavers for a herringbone pattern?
The field count is the same, but herringbone and other diagonal patterns force more angled edge cuts, so bump the waste factor to 10–15% to cover the extra pieces you can't reuse.