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Tile Calculator

Calculate how many tiles, boxes, mortar bags, and grout you need for floors, walls, and backsplashes.

Standard 10% waste buffer
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ft
tiles
Estimate Total Cost (Optional)▼
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$

Ready to calculate

Enter your room dimensions and tile size to see how many tiles, boxes, and grout bags you need.

Tiling & Masonry Handbook

Tile Sizing, Box Coverage, Grout & Layout Guide

A complete reference for your floor tile calculator, wall tile calculator, bathroom tile calculator for showers, ceiling tile calculator, and roof tile calculator projects.

Tile Calculator Square Feet: Formula & Box Calculations

To determine how many tiles and boxes you need using our tile calculator square feet and tile calculator floor, follow the industry mathematical formula:

Single Tile Area (sq ft) = (Tile Width in inches × Tile Length in inches) ÷ 144

Gross Area to Order = Net Room Area (sq ft) × (1 + Pattern Waste %)

Total Tiles Needed = Gross Area ÷ Single Tile Area

Boxes to Order = Math.ceil(Gross Area ÷ Square Feet per Box)

12″ × 24″ Floor & Shower2.00 Sq Ft

Standard modern floor & shower tile (typically 8 tiles / 16 sq ft per box).

12″ × 12″ Square1.00 Sq Ft

Classic ceramic floor & wall tile (typically 10 to 15 tiles / 10–15 sq ft per box).

3″ × 6″ Subway0.125 Sq Ft

Requires 8 tiles per square foot (typically 80 tiles / 10 sq ft per box).

Bathroom Tile Calculator: Tile Calculator for Shower Walls & Backsplashes

When estimating vertical surfaces with our tile calculator for shower walls and tile calculator shower, calculate each wall separately:

Application AreaCommon Tile SizesRecommended WasteInstallation Notes
Shower Surround Walls12×24″, 4×12″, 3×6″+ 15%Requires cutouts for shower valve, showerhead & recessed niche.
Kitchen Backsplash3×6″ subway, 2×8″, mosaics+ 10% to 15%Cutouts around electrical outlets and under-cabinet corners.
Bathroom / Living Floor12×24″, 24×24″, 6×24″+ 10% ★Standard grid or 1/3 offset running bond.
Drop Ceiling Grids24×24″ (2×2), 24×48″ (2×4)+ 10%Acoustic mineral fiber ceiling panels fitting T-bar grid.

Tile Calculator Layout & Tile Calculator with Grout

Our tile calculator with grout estimates setting materials according to TCNA standards:

  • Thin-Set Mortar: One standard 50-lb bag of polymer-modified thin-set covers approx. 40 to 50 sq ft with a standard ¼″ × ⅜″ square-notch trowel (or 30–40 sq ft for large format tiles with a ½″ notch trowel).
  • Grout Takeoff: A standard 10-lb bag of grout covers approx. 80 to 120 sq ft for 12×24 tiles with ⅛″ grout joints, and approx. 30 to 50 sq ft for 3×6 subway tiles with 1/16″ or 1/8″ joints.
  • Pattern Scrap: Herringbone and 45-degree diagonal patterns require +15% to 20% waste due to perimeter triangular cutoffs.

Tile Calculator UK: Metric Square Metres (m²) & Roof Tile Calculator UK

For UK tiling and roofing renovations, our tile calculator uk and floor tile calculator uk support metric dimensions:

  • Metric Formula: Surface Area (m²) = Length (metres) × Width (metres). 1 square metre (1 m²) equals 10.764 square feet.
  • UK Metric Tile Sizes: Common UK sizes include 300×600 mm (0.18 m²), 600×600 mm (0.36 m²), and 100×200 mm metro tiles (0.02 m² / 50 tiles per m²).
  • Roof Tile Calculator UK: Standard UK interlocking concrete or clay roof tiles (e.g. Marley Modern or Redland 49) require approx. 10 to 16.5 tiles per square metre (m²) of roof pitch area.
Frequently Asked Questions

Tile Estimating, Sizing & Box Sizing FAQs

Expert answers to common questions about calculating tile square footage, full box quantities, cutting waste for herringbone layouts, and thin-set mortar coverage.

Tile Calculations, Counts & Sizing

How to calculate for tiles?
To calculate tiles: 1. Calculate total square footage: Length (ft) × Width (ft). 2. Add a 10% to 15% cutting waste allowance (Gross Area = Net Area × 1.10). 3. Find single tile area: (Tile Width in inches × Tile Length in inches) ÷ 144. 4. Divide gross square footage by single tile area to get total tiles needed. 5. Divide total tiles by tiles per box and round up to the nearest whole box.
What size tile is 1 sq ft?
A 12″ × 12″ (12 inch by 12 inch) tile is exactly 1 square foot (144 square inches). Other sizes that equal 1 sq ft include 6″ × 24″ wood plank tiles (144 sq in) and 8″ × 18″ tiles.
How many tiles for 100 sq ft?
For 100 square feet (including a standard 10% waste buffer = 110 sq ft gross): • 12×24 tiles (2.0 sq ft): 55 tiles (approx. 7 boxes) • 12×12 tiles (1.0 sq ft): 110 tiles (approx. 11 boxes) • 24×24 tiles (4.0 sq ft): 28 tiles (approx. 7 boxes) • 3×6 subway tiles (0.125 sq ft): 880 tiles (approx. 11 boxes).
How many 2x2 tiles for 1000 square feet?
A 2×2 foot tile (24″ × 24″) covers exactly 4.0 square feet. For 1,000 square feet with a 10% cutting waste buffer (1,100 sq ft total), you will need exactly 275 tiles (1,100 ÷ 4 = 275 tiles). If packaged 4 tiles per box (16 sq ft/box), you need 69 full boxes.
How do I calculate square feet?
To calculate square feet, measure the length and width of the area in feet and multiply them together: Square Footage = Length (ft) × Width (ft). For inches, multiply Length (in) × Width (in) and divide by 144.
How many 12x12 tiles for?
Because a 12″ × 12″ tile is exactly 1.0 square foot, you need 1 tile per square foot plus 10% waste. For example: 50 sq ft requires 55 tiles; 100 sq ft requires 110 tiles; 200 sq ft requires 220 tiles; 500 sq ft requires 550 tiles.

Online Calculators, Floor & Pieces

how many tile do i need for floor calculator
Use YesMeasure's Tile Calculator to estimate floor tiles. Enter your room length and width, select your tile size (e.g. 12×24 or 24×24), and the calculator will automatically output exact tile counts, full box cartons, and setting materials.
how much tile will i need calculator
A tile calculator determines gross square footage and box requirements by taking your room surface area, applying a 10% to 15% pattern cutting allowance, and dividing by the square footage per tile and box carton.
how many pieces of tile do i need calculator
To find total tile pieces, calculate: Total Pieces = Math.ceil((Room Area × (1 + Waste %)) ÷ Single Tile Area). For example, a 150 sq ft room with 10% waste using 12×24 tiles (2 sq ft/tile) requires 83 pieces of tile.

Mortar, Pricing & Roof Tile Replacement

how much mortar do i need for tile calculator
One standard 50-lb bag of polymer-modified thin-set mortar covers approximately 40 to 50 square feet using a standard ¼″ × ⅜″ notched trowel for standard tiles, and approx. 30 to 40 square feet with a ½″ notch trowel for large format tiles.
How much is 1 sq ft of tile?
Tile prices range from $1.00 to $15.00+ per square foot for materials: • Basic ceramic tile: $1.00 to $3.00 / sq ft • Standard porcelain tile: $3.00 to $7.00 / sq ft • Natural marble & stone: $8.00 to $20.00 / sq ft • Professional installation labor: $5.00 to $12.00 / sq ft.
How is tile price calculated?
Tile cost is calculated by multiplying gross square footage by the price per square foot (or total boxes needed by price per box), plus setting materials (thin-set mortar, grout, backer board, and spacers) and professional installation labor.
how much to replace one roof tile uk calculator
In the UK, replacing a single broken roof tile typically costs £100 to £200 in total. While an individual concrete or clay roof tile costs only £1.50 to £5.00, the majority of the cost covers professional roofer call-out fees, ladder/scaffolding safety setup, and labor.