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How Many Tiles Per Square Foot?

A 12"×12" tile is exactly one per square foot. Everything else takes a moment of maths — so here it is done for you, in both directions: tiles per square foot, and square feet per box.

Tile size and area

Master chart: tiles per square foot

Tile sizeCoverage eachTiles per sq ftTiles per 100 sq ft
2 x 2 in0.028 sq ft363,600
3 x 6 in0.125 sq ft8800
4 x 4 in0.111 sq ft9900
4 x 12 in0.333 sq ft3300
6 x 6 in0.25 sq ft4400
6 x 24 in1.00 sq ft1100
8 x 8 in0.444 sq ft2.25225
12 x 12 in1.00 sq ft1100
12 x 24 in2.00 sq ft0.550
13 x 13 in1.174 sq ft0.8585
16 x 16 in1.78 sq ft0.5656
18 x 18 in2.25 sq ft0.4445
20 x 20 in2.78 sq ft0.3636
24 x 24 in4.00 sq ft0.2525
24 x 48 in8.00 sq ft0.12513

Typical box counts

Tile sizeTiles per boxSquare feet per boxBox weight
12 x 12 in15–1715–17 sq ft45–55 lbs
12 x 24 in6–812–16 sq ft50–65 lbs
18 x 18 in6–713–16 sq ft50–60 lbs
24 x 24 in3–412–16 sq ft60–80 lbs
3 x 6 in subway80–9010–11 sq ft30–40 lbs

Tools for measuring and setting tile

  • NAACOO Laminate Flooring Tools, Universal 4 in 1 Floor Installation Kit | Tapping Block-Double Sided with Notches, Pull Bar, 40Pcs Floor Spacers, Rubber Mallet

    NAACOO Laminate Flooring Tools, Universal 4 in 1 Floor Installation Kit | Tapping Block-Double Sided with Notches, Pull Bar, 40Pcs Floor Spacers, Rubber Mallet

    $19.99

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  • DGSL Tile Leveling System with Plier, 300 Tile Spacers 1/16" and 100 Wedges | Tile Leveling Clips with Tile Plier, Anti Lippage Tile Leveler Spacers for Professional Ceramic Tile and Stone Installation

    DGSL Tile Leveling System with Plier, 300 Tile Spacers 1/16" and 100 Wedges | Tile Leveling Clips with Tile Plier, Anti Lippage Tile Leveler Spacers for Professional Ceramic Tile and Stone Installation

    $25.99

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  • 180W Rotary Tool Kit, 1.5-Amp PHALANX 6 Variable Speed with Flex Shaft, 8000-32000RPM Multi-Tool& 139pcs Accessories Kit, Power Multiuse Set Prefect for Crafting Projects and DIY Creations…

    180W Rotary Tool Kit, 1.5-Amp PHALANX 6 Variable Speed with Flex Shaft, 8000-32000RPM Multi-Tool& 139pcs Accessories Kit, Power Multiuse Set Prefect for Crafting Projects and DIY Creations…

    $39.99

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  • Tile Tools Stainless Steel Square Notch Trowel Set Plus Rubber Grout Float and Grout Sponge for Tiling Installation Grouting

    Tile Tools Stainless Steel Square Notch Trowel Set Plus Rubber Grout Float and Grout Sponge for Tiling Installation Grouting

    $24.98

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  • Goldblatt 2 Pieces Tile Nippers Set, Ceramic & Mosaic Cutter Tools | Heavy Duty Carbon Steel, Tile Cutter, Soft Grip Handles, Porcelain Nippers, Wheeled Glass Cutter, Precision Trimming

    Goldblatt 2 Pieces Tile Nippers Set, Ceramic & Mosaic Cutter Tools | Heavy Duty Carbon Steel, Tile Cutter, Soft Grip Handles, Porcelain Nippers, Wheeled Glass Cutter, Precision Trimming

    $25.99

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  • Konvixon 9PCS Tile Trowel Set, 2 Margin Trowels Included for Tile Setting

    Konvixon 9PCS Tile Trowel Set, 2 Margin Trowels Included for Tile Setting

    $35.99

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Prices as of Oct 17, 2026, 4:39 AM UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Tools the pros use for this job

  • Tile Tool Kit

    NAACOO Laminate Flooring Tools, Universal 4 in 1 Floor Installation Kit | Tapping Block-Double Sided with Notches, Pull Bar, 40Pcs Floor Spacers, Rubber Mallet

    NAACOO Laminate Flooring Tools, Universal 4 in 1 Floor Installation Kit | Tapping Block-Double Sided with Notches, Pull Bar, 40Pcs Floor Spacers, Rubber Mallet

    $19.99

    Check price on Amazon

    Everything a first tile job needs, in one box.

  • Tape Measure

    NAACOO Laminate Flooring Tools, Universal 4 in 1 Floor Installation Kit | Tapping Block-Double Sided with Notches, Pull Bar, 40Pcs Floor Spacers, Rubber Mallet

    NAACOO Laminate Flooring Tools, Universal 4 in 1 Floor Installation Kit | Tapping Block-Double Sided with Notches, Pull Bar, 40Pcs Floor Spacers, Rubber Mallet

    $19.99

    Check price on Amazon

    Measure the actual tile — nominal 12 in tiles are often 11 7/8 in.

  • Tile Spacers

    DGSL Tile Leveling System Tile Spacers 1/8 Inch, 300 pieces Horseshoe Shim U Shape Plastic Tile Leveling Clips for Various Types of Tile Leveling

    DGSL Tile Leveling System Tile Spacers 1/8 Inch, 300 pieces Horseshoe Shim U Shape Plastic Tile Leveling Clips for Various Types of Tile Leveling

    $15.03

    Check price on Amazon

    Joint width is what turns nominal size into real coverage.

As an Amazon Associate I earn from qualifying purchases.

Prices as of Oct 17, 2026, 4:39 AM UTC. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.

Do this math on the job site — in the free app

Smart Tile Calculator for Android: offline, in your pocket, free.

How this calculator works

Tiles per square foot = 144 ÷ (tile width × tile length in inches). A 3x6 subway tile is 144 ÷ 18 = 8 tiles per square foot. A 24x24 tile is 144 ÷ 576 = 0.25, or one tile per 4 square feet.

Boxes are what you actually buy. Tile is sold by the box and the box lists square feet of coverage, not tile count. Divide your total square footage — waste included — by the coverage printed on the box and round up. Never round down: mixing dye lots halfway across a floor is visible forever.

One caution on nominal sizes: a "12 inch" tile usually measures 11 7/8" and relies on the grout joint to make up the difference. For counting purposes the nominal size is close enough, but for a layout plan measure a real tile.

Use it with the square footage calculator, the waste factor guide and the tile box converter.

Frequently asked questions

How many 12x12 tiles per square foot?

Exactly one. A 12x12 tile covers one square foot before grout joints are considered.

How many tiles are in a box?

It depends on size: 12x12 usually 15–17, 12x24 typically 6–8, 24x24 3–4, and 3x6 subway 80–90. Boxes are sized to weigh roughly 40–60 lbs.

How do I convert square feet to boxes of tile?

Add your waste factor to the room square footage, divide by the square feet of coverage printed on the box, and round up to the next whole box.

How many 12x24 tiles in 100 square feet?

50 tiles, since each covers 2 square feet. Add 10–12% waste and buy 56 tiles, or 7 boxes of 8.

Does grout joint width change how many tiles I need?

Barely. A 1/8 inch joint on 12x12 tile changes coverage by about 2%, which the waste factor already absorbs.

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· Reviewed by the Smart Tile Calculator editorial team