Paver Calculator

How many pavers you need for a patio, walkway or driveway, plus the base gravel, bedding sand, polymeric sand and edging to go with them.

Inputs

ft
ft
%
10% for straight or running-bond patterns; 15% for herringbone, diagonals or curves.
in
Patios and walkways: 4–6 in. Driveways: 8–12 in. Go deeper on clay or wet ground.
in
The standard bedding layer is 1 in. Don't go thicker.
sq ft / bag
Check your bag. Roughly 75–100 sq ft for tight joints, 30–60 for wide joints.

Results

—pavers
Area—
Pavers per sq ft—
Base gravel—
Base gravel volume—
Bedding sand—
50 lb bags of sand—
Polymeric sand (50 lb bags)—
Edging—
8 ft edging pieces—
Assumptions: Pavers per sq ft use the paver's nominal size (joints included); the count is rounded up after the extra %. Base = crushed stone paver base at 1.4 tons per yd³, with 20% added so it still reaches full depth after compacting. Bedding sand = coarse concrete sand; a 50 lb bag is about 0.5 ft³. Edging comes in 8 ft lengths with about 1 spike per foot. Estimates for planning only; confirm with your supplier.

Paver calculator FAQ

How many pavers per square foot?

Divide 144 by the paver's width × length in inches. 4 × 8 in pavers: 4.5 per sq ft. 6 × 6: 4. 6 × 9: about 2.67. 12 × 12: 1. 16 × 16: about 0.56. 24 × 24: 0.25.

How many pavers for a 12 × 16 patio?

A 12 × 16 ft patio is 192 sq ft. With 4 × 8 in pavers that's 864 pavers, or 951 with 10% extra for cuts. It also takes about 6 tons of base gravel at 6 in deep and 32 bags of bedding sand.

How thick should the base be under pavers?

For patios and walkways, 4–6 in of compacted crushed stone. For driveways, 8–12 in. Add more on clay or poorly drained soil, and compact it in 2–3 in layers.

How much sand goes under pavers?

A 1 in bedding layer of coarse concrete sand, screeded flat. That's about 8.3 ft³ per 100 sq ft, or 17 bags of 50 lb sand. Thicker sand lets pavers shift and sink.

How many extra pavers should I buy?

About 10% for straight or running-bond layouts and 15% for herringbone, diagonal layouts or curved edges. Keep a few spares for future repairs.

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Step-by-step guide: How many pavers do I need? (pavers per sq ft + base and sand) — formula, worked examples, and common mistakes.