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Paver Calculator

Find how many pavers you need, the gravel and sand that go under them, how deep to dig, and what it costs.

  • Updated October 28, 2026
  • Prices up to September 2026
  • 4 sources

1Size

Shape
Units

2Pavers

3Depth

How deep the gravel base is. Patios and walks: 6 to 8 in15 to 20 cm. Driveways: 10 to 14 in25 to 35 cm.

4Price

Your own paver price

You need

567pavers
9.38inches deep to dig
Pavers Sand Gravel baseSide view, to scale
  • 2.98 yd³crusher run, 4.5 tons
  • 0.37 yd³sand, 0.5 tons
Cost before delivery$107 to $228 Pavers: type your price · stone $94 to $201 · sand $14 to $27
  • You need 567 pavers of 4 × 8 in for 120 sq ft. That has 5% extra for cuts.
  • Under them, get 2.98 cubic yards (4.5 tons) of crusher run. Pack it down in thin layers. Then get 0.37 cubic yards (0.5 tons) of concrete sand for a 1 in bed.
  • Dig 9.38 in deep: 2.38 in of paver, 1 in of sand and 6 in of stone. Dig 6 in past every edge, too.
  • Stone and sand cost about $107 to $228. Delivery is extra. Type your paver price to add the pavers.

Text this to a stone yard

Hi! For a paver patio I need about 4.5 tons of 3/4 in crusher run and 0.5 tons of concrete sand, delivered. What would it cost, with delivery?

567 pavers · dig 9.38 inAnswer

How deep to make the base

Under pavers goes packed crushed stone, then 1 inch2.5 cm of coarse sand. Pack the stone in layers 2 to 3 in5 to 8 cm thick.

  • Patios6 to 8 in15 to 20 cm
  • Walkways6 to 8 in15 to 20 cm
  • Pool decks6 to 12 in15 to 30 cm
  • Driveways10 to 14 in25 to 36 cm

Unilock Basic Tech Guide, January 2024, "Typical paver base thickness". Clay soil needs a deeper base. Sandy soil needs less.

Pavers per 100 square feet

How many pavers cover 100 sq ft10 sq m, before any extra for cuts. Bigger pavers, fewer pieces.

Paver sizePaversWith 5% extraWith 10% extra
4 × 8 in10 × 20 cm 450485 473509 495533
6 × 6 in15 × 15 cm 400431 420453 440474
6 × 9 in15 × 23 cm 267288 280302 294316
12 × 12 in30 × 30 cm 100108 105114 110119
16 × 16 in41 × 41 cm 5761 6064 6267
12 × 24 in30 × 61 cm 5054 5357 5560

No paver maker we found gives a number for extra. Paver calculators use about 5% for straight rows and 10% for herringbone, so we do too. Add more for curves.

How the math works

  1. Area. Length times width. For a circle, half the width times itself, times 3.1416. One meter is 3.28084 feet.
  2. Pavers. Area times the extra for cuts, divided by the size of one paver, rounded up. We use the paver's face size, so joints make the real count a bit smaller.
  3. Gravel base. Area (plus 6 in past every edge, if on) times the base depth. Crusher run packs down to 0.89 of its loose size (Caterpillar), so you buy 1.124 times as much. Weight: 1.5 tons a cubic yard (our estimate, 1.4 to 1.6). This is the same math as our gravel calculator.
  4. Sand. Area times 1 inch. Damp sand weighs 2,850 lb a cubic yard (Caterpillar).
  5. Dig depth. Paver thickness, plus 1 in of sand, plus the base.
  6. Price. Stone: the crusher run price that yards post, moved to your state, as on the gravel page. Sand: what yards post for concrete sand, $26 to $52 a ton. Pavers: too few dealers post a price, so type yours. Delivery, edging, fabric and tools are not in it.

Questions

How many pavers do I need?

Divide the patio area by the size of one paver, then add extra for cuts. For 100 sq ft of 4 × 8 in pavers, that is 450 pavers, or 473 with 5% extra.

How much gravel do I need for a paver base?

For a patio, 6 to 8 inches of packed crusher run, says Unilock. For 100 sq ft at 6 in, that is about 2.08 cubic yards, since packing it takes 12% more.

How much sand goes under pavers?

A 1 inch layer of coarse sand, says Unilock. For 100 sq ft, that is 8.3 cu ft, or 0.31 cubic yards.

How deep do I dig for pavers?

Add the paver, the sand and the base. A 2 3/8 in paver, 1 in of sand and 6 in of base is 9 3/8 inches. Dig at least 6 in past the edges, says Belgard.

How much does a paver patio cost?

If you do it yourself, you pay for pavers, gravel and sand. For a 12 × 10 ft patio on 6 in of base, the stone and sand cost about $107 to $228, before delivery. Paver prices vary a lot by style, and too few dealers post them. Ask a dealer, and type the price into the calculator.

How many extra pavers should I buy?

About 5% for straight rows and 10% for herringbone. No paver maker gives a set number. Keep a few spares to fix a cracked paver later.

Sources

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