Paver Calculator: How Many Pavers Do I Need?
Enter your patio or walkway area, pick a paver size and a waste factor, and get an exact paver count — with the formula and a worked example.
Calculator
A 200 sq ft patio in pavers of 0.222 sq ft each, with 5% waste, needs about 946 pavers. Herringbone and diagonal patterns waste more — buy a full extra bundle and confirm the paver size.
A paver patio is priced and delivered by the paver, but you measure it by the square foot — so the first thing you need is a reliable paver count. This calculator turns your paved area into a number of pavers by dividing the area (with a little extra for waste) by the face area of one paver. Pick a nominal size from the list — a 4 × 8 in brick paver covers about 0.222 sq ft, a 6 × 6 in about 0.25 sq ft, a 6 × 9 in about 0.375 sq ft and a 12 × 12 in slab a full 1.0 sq ft — or read the coverage off the product for an odd shape.
The number the tool gives you is a planning count. Real jobs cut pavers along curves, borders and the house wall, and a broken paver or two is normal, so the waste factor bumps the raw count up by 5–15 %. Buy at least one full extra bundle: dye lots vary between batches, and a matching spare is priceless when you replace a cracked paver years later.
Formula
The count comes straight from the areas:
pavers = ceil( area_sqft × (1 + waste) ÷ paver_face_area )
- area_sqft — the paved surface (length × width).
- waste — a fraction (0.05–0.15) for cuts, breakage and pattern loss.
- paver_face_area — the face area of one paver in square feet (4 × 8 in = 32 sq in ÷ 144 = 0.222 sq ft).
We round up (ceil) because you can only buy whole pavers.
Worked example
Say you are laying a 200 sq ft patio in 4 × 8 in pavers (0.222 sq ft each) with a simple rectangle, so 5 % waste:
- Area with waste: 200 × 1.05 = 210 sq ft.
- Divide by the paver face: 210 ÷ 0.222 = 945.9.
- Round up: 946 pavers.
At about 4.5 pavers per square foot, that matches the rule of thumb for brick pavers. Switch to 12 × 12 in slabs and the same patio takes only ~210 pavers — fewer pieces, but each one is heavier to place.
Background & practice
Order a full extra bundle, not just the waste percentage. The waste factor covers cuts and breakage during the install; the extra bundle covers the paver you crack with the plate compactor and the one you will want in five years to swap a stained or sunken unit. Keep them dry and out of the sun so they stay color-matched.
Patterns change waste. A running-bond or stack pattern parallel to the borders wastes the least. Herringbone at 45°, basket-weave borders and any curve force diagonal cuts — push the waste factor to 10–15 % there. If your patio has a soldier-course border, count it separately: border pavers are often a different size from the field.
Measure twice before you order. A paver delivery is heavy and awkward to return, so pin down the real dimensions first. Square off the layout with a tape and a string line, then break odd shapes into rectangles — a curved patio is usually a rectangle plus a half-circle or a couple of triangles. Add the pieces and you have the field area to type in. Confirm the paver’s exact face size from the spec sheet rather than a nominal name, because a “6 × 6” is often a hair under and the coverage math is only as good as that number.
Field pavers vs. caps and edging. This tool counts the field pavers that fill the surface. Bullnose caps for a step, coping around a spa and the edge restraint that locks the perimeter are separate line items — add them from the manufacturer’s pack sizes.
Don’t forget what goes under the pavers. A patio is only as flat as its base. Use the paver base calculator for the compacted gravel and bedding sand, and the polymeric sand calculator for the joints once the pavers are down. For a budget, feed your paver count and price into the paver patio cost calculator. See paver coverage for the full size chart.
Reference table
Pavers per 100 sq ft (before waste) and for your area, by nominal size (labeled typicals — confirm the coverage on the product):
| Paver size | Face area | Per 100 sq ft | For 200 sq ft |
|---|---|---|---|
| 4 × 8 in (0.222 sq ft) | 0.222 sq ft | 451 | 901 |
| 6 × 6 in (0.25 sq ft) | 0.250 sq ft | 400 | 800 |
| 6 × 9 in (0.375 sq ft) | 0.375 sq ft | 267 | 534 |
| 12x12 | 1.000 sq ft | 100 | 200 |