tilegroutcalc

How many 1x1 tiles do I need?

10 × 10 ft room, 100 ft² · 1 × 1 in tile, straight lay

Buy 15,840 tiles

with 10% extra · 14,400 cover it exactly

One tile
0.00694 ft², 144.00 per ft²
Grout
3 × 25 lb bagUltracolor Plus FA

Your numbers

Or type the area; the width follows
Layout
Optional, from the carton
Plan of a 10 × 10 ft floor laid with 1 × 1 in tiles, straight: 14,400 tiles, 15,840 to buy 10 ft 10 ft Whole tiles Tiles shown as a repeat 14,400 cover it · 15,840 to buy
One square foot of 1 × 1 in tiles: 144.00 per square foot 1 ft² 144.00 per ft² 1 ft × 1 ft

At other areas

1 × 1 in tiles by floor area; your area is marked when it is one of these.
AreaExactStraightDiagonal
25 ft²3,6003,9604,140
50 ft²7,2007,9208,280
100 ft²14,40015,84016,560
200 ft²28,80031,68033,120
500 ft²72,00079,20082,800
1,000 ft²144,000158,400165,600

Grout for this area

100 ft² at a 1/8 in joint, 1/4 in tile. Units include 10% extra.
ProductPoundsBuy
MAPEIUltracolor Plus FA chart 51.0 lb 325 lb bag
LATICRETESPECTRALOCK PRO Premium by volume sold by volume 6Full unit, 0.8 gal
Custom Building ProductsPolyblend Sanded chart 46.3 lb 325 lb bag
Custom Building ProductsPrism chart 31.5 lb 317 lb box
TECPower Grout chart 49.0 lb 325 lb bag

Thinset by trowel

VersaBond-LHT, 50 lb bags, for 100 ft².
Trowel notchft² per bagBags
1/4 × 1/4 × 1/4 square90–1001–2
1/4 × 3/8 × 1/4 square60–672
3/4 × 9/16 × 3/8 U @45°34–423
3/4 × 9/16 × 3/8 U @30°38–473

Nearby sizes

Sources

Figures built September 2026.

Where these numbers come from (8)
  • Coverage: Custom Building Products, “Polyblend® Sanded Grout / TDS-129”, 3/22/2023, retrieved from https://www.custombuildingproducts.com/TDS/TDS-129.pdf on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Coverage: Custom Building Products, “Prism® Ultimate Performance Grout / TDS-128”, 6/20/2023, retrieved from https://www.custombuildingproducts.com/TDS/TDS-128.pdf on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Thinset coverage: Custom Building Products, “VersaBond®-LHT Professional Large and Heavy Tile Mortar”, retrieved from https://www.custombuildingproducts.com/products/versabond-lft-professional-large-format-tile-mortar on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Coverage: LATICRETE, “SPECTRALOCK® PRO Premium Grout†”, DS-681.0-0217, retrieved from https://cdn-global.laticrete.com/-/media/project/laticrete-international/north-america/product-documents/product-data-sheets/lds6810_spectralock-pro-premium-grout.ashx on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Grout waste: LATICRETE, “SpectraLOCK PRO Grout Installation & Maintenance Guide, TDS 400 PRO”, R 9 October 2009, retrieved from https://cdn-global.laticrete.com/-/media/project/laticrete-international/shared/files/support-and-downloads/technical-datasheets/tds400-pro.ashx?la=en on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Coverage: MAPEI, “Ultracolor Plus FA”, August 28, 2026, retrieved from https://cdnmedia.mapei.com/docs/librariesprovider67/products-documents/1_3000144_ultracolor-plus-fa_en-us_979a424a35724d82980fa0332f798319.pdf on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Coverage: H.B. Fuller Construction Products, “TEC® Power Grout® Product Data”, DS550 R0317-20, retrieved from https://pdf.lowes.com/installationguides/082093558101_install.pdf on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.
  • Overage: TileBuys, “How to calculate tile needed”, retrieved from https://www.tilebuys.com/pages/how-to-calculate-tile-needed on 2026-09-24. Chart values are restated as numbers; no text or table is reproduced.

Quantities are estimates for buying materials. Actual use depends on tile variation, joint depth and installation; manufacturers publish their coverage figures for estimating only.