🧱 Tile Flooring Calculator

Calculate exactly how many tiles you need — including grout spacing

in
in
$/sqft
sqft
Room Area
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sq ft
Flooring Needed
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sq ft (with waste)
Tiles Needed
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tiles
Boxes Needed
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boxes

Tile Flooring Guide

💰 Average Tile Costs (2026)

  • Ceramic: $1.50 – $5 / sq ft
  • Porcelain: $3 – $8 / sq ft
  • Natural Stone: $5 – $15 / sq ft
  • Glass Mosaic: $5 – $30 / sq ft
  • Installation: $4 – $14 / sq ft

📐 Tile Size Guide

  • 12×12: Most popular, versatile
  • 18×18: Fewer grout lines, modern look
  • 24×24: Makes rooms look bigger
  • 6×6: Great for backsplash
  • Mosaics: Perfect for shower floors

🏷️ Porcelain vs. Ceramic

Porcelain: Denser, more water resistant, better for outdoors. Absorption rate <0.5%.

Ceramic: More affordable, easier to cut, wide variety of designs. Great for walls and low-traffic areas.

🎨 Tile Pattern Tips

  • Straight lay: Easiest, least waste (5%)
  • Brick/offset: Popular, 10% waste
  • Diagonal: Modern look, 15% waste
  • Herringbone: Stunning, 20% waste

How Many Tiles for Common Room Sizes?

Quick reference for tile quantities by room size, using standard 12×12 inch tiles with 10% waste:

Room SizeArea (sq ft)With 10% Waste12×12 TilesBoxes (~15/box)
Small bathroom (5×8)40 sq ft44 sq ft44 tiles3 boxes
Standard bathroom (8×10)80 sq ft88 sq ft88 tiles6 boxes
Kitchen (10×12)120 sq ft132 sq ft132 tiles9 boxes
Living room (12×15)180 sq ft198 sq ft198 tiles14 boxes
Large room (15×20)300 sq ft330 sq ft330 tiles22 boxes
Whole floor (1,000 sq ft)1,000 sq ft1,100 sq ft1,100 tiles74 boxes

Based on 12×12" tiles with 10% waste. Larger tiles (18×18, 24×24) need fewer pieces. Diagonal layouts need 15% waste.

Frequently Asked Questions

How many tiles do I need for a 12×12 room?
144 sq ft + 10% waste = 159 sq ft. For 12×12 inch tiles, that's about 159 tiles (11 boxes of 15). Always round up when ordering to account for cuts and breakage during installation.
Should I choose porcelain or ceramic tile?
Porcelain is denser and more water resistant (absorption rate <0.5%), ideal for bathrooms, kitchens, and outdoor use. Ceramic tiles are more affordable and easier to cut, great for walls and dry areas. Both come in countless designs.
How wide should grout lines be?
Standard: 1/8" for most floor tiles. Rectified (precision-cut) tiles can use 1/16". Larger tiles (18"+) often use 1/8" to 3/16". Wider grout lines are more forgiving for uneven surfaces.
How do I calculate tile for a bathroom with odd shapes?
Split the floor into rectangles. Measure each section separately. Add sections together plus 15–20% waste for the extra cuts around fixtures, tub, and toilet.
What's the best tile for kitchen floors?
Porcelain tile is the top choice for kitchens: it's water-resistant, scratch-resistant, and easy to clean. Choose textured or matte finishes with a slip rating for safety. 12×24 or 18×18 sizes are popular for kitchens.
How many tiles do I need for a 200 sq ft room?
200 sq ft + 10% waste = 220 sq ft. With 12×12" tiles, that's 220 tiles (~15 boxes). For 18×18 tiles (2.25 sq ft each), ~98 tiles. Always buy 1–2 extra boxes for future repairs.
How much does it cost to tile a 10×10 bathroom?
100 sq ft + 10% waste = 110 sq ft. Materials at $2–$15/sq ft: $220–$1,650. Installation at $5–$15/sq ft: $550–$1,650. Total: $770–$3,300 depending on tile quality.
How many tiles come in a box?
Typical counts: 12×12" tiles: 10–15/box (~10–15 sq ft). 18×18": 6–8/box (~13.5–18 sq ft). 24×24": 4–5/box (~16–20 sq ft). Always check box coverage — it varies by brand.

How Many Tiles for Every Room in Your Home?

How much tile for a small bathroom? A standard 5×8 ft bathroom is 40 sq ft. With 10% waste = 44 sq ft, or 44 twelve-inch tiles (3 boxes). For a master bathroom (10×12): 132 sq ft with waste = 9 boxes of 12×12 tiles. Budget $264–$1,980 for materials depending on tile quality.

How much tile for an entire kitchen floor? The average kitchen is 100–150 sq ft. With waste, plan for 110–165 sq ft. At $3–$10/sq ft for porcelain tile, budget $330–$1,650 for materials alone. Installation adds $5–$15/sq ft.

Can I tile over existing flooring? You can tile over existing tile, vinyl, or concrete if the surface is flat, structurally sound, and well-adhered. Avoid tiling over carpet or floating floors. Use a self-leveling compound for uneven surfaces.

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