Tile Calculator

Calculate the number of tiles needed for your project. Includes waste factor, pattern adjustments, and grout/mortar estimates with total cost breakdown.

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Room area: 120.0 sq ft
Tile Size
5%15%
Tile Estimate for 120.0 sq ft
Tiles Needed
132
tiles
Boxes to Buy
14
boxes of 10
Grout Bags
2
25 lb bags
Mortar Bags
3
50 lb bags
Tile size12" x 12" (1.000 sq ft each)
PatternStraight / Grid
Total waste factor10% (10% base + 0% pattern)
Effective coverage area132.0 sq ft
Extra tiles from full boxes8 spare tiles
Cost Breakdown
Tiles
132.0 sq ft @ $3.50/sq ft
$462.00
Grout
2 bags @ $12.00/bag
$24.00
Mortar / Thinset
3 bags @ $15.00/bag
$45.00
Total Estimated Cost
$4.43 per sq ft
$531.00
Note: Does not include installation labor ($5-10/sq ft typical), spacers, sealer, or underlayment.
Pattern Comparison
PatternExtra WasteTiles NeededEst. Tile Cost
Straight / Grid (selected)+0%132$462.00
Diagonal (45°) +15%150$525.00
Herringbone +20%156$546.00
Tile Coverage Reference
Tile SizeSq Ft / TileTiles / 100 sq ftBest For
4" x 4"0.111900Backsplash, accents
6" x 6"0.250400Small floors, walls
12" x 12"1.000100Standard floors
12" x 24"2.00050Modern floors
18" x 18"2.25045Large rooms
24" x 24"4.00025Open plan spaces
Always buy 10% extra for cutting waste. Diagonal and herringbone patterns require 15-20% extra.

How to Use Tile Calculator

  1. 1Enter room dimensions or total area
  2. 2Select tile size and pattern
  3. 3Set waste percentage
  4. 4View tiles, boxes, and cost needed

Frequently Asked Questions

How much tile waste should I plan for?

Standard straight lay: 10% waste. Diagonal pattern: 15%. Herringbone: 20%. Complex patterns or small rooms need more waste allowance.

How many tiles per square foot?

Depends on tile size. 12x12 inch tiles = 1 per sqft. 6x6 = 4 per sqft. 24x24 = 0.25 per sqft. 12x24 = 0.5 per sqft.

How much grout do I need?

Grout coverage depends on tile size, joint width, and tile thickness. As a rough guide, a 25-lb bag of grout covers 50-200 sqft depending on these factors.

About Tile Calculator

Calculate the number of tiles needed for your project. Includes waste factor, pattern adjustments, and grout/mortar estimates with total cost breakdown.

NexTool's Tile Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.

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