Paver Calculator
Calculate paver counts for a patio, walkway, or driveway, plus the base rock and bedding sand the installation needs underneath.
Formula and figures last reviewed by the Cosyslabs team · how we verify
Inputs
Result
Pavers needed
1135
Area
240 ft²
- Base rock (4 in)
- 2.96 yd³
- Bedding sand (1 in)
- 0.74 yd³
- Paver size
- 8.0" × 4.0"
- Waste
- 10%
Waste default: 10% — Ten percent covers cuts at the perimeter; use 15% for a herringbone or diagonal pattern, which cuts far more units.
Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.
Formula
Paver area = (L + joint) × (W + joint) ÷ 144 · Pavers = area ÷ paver area × (1 + waste)
References
Related tools & materials
Don't forget
- Crushed base rock
- Bedding sand
- Polymeric joint sand
- Edge restraint
- Geotextile fabric
- Plate compactor
Also useful
Frequently asked questions
Divide the area by the coverage of one paver including its joint. An 8 × 4 inch paver with a 1/8-inch joint covers 0.232 ft², so a 240 ft² patio needs about 1,035 pavers before waste.
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Cosyslabs. (2026). Paver Calculator. Rough Estimator!. https://roughestimator.com/paver-calculator
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