Calculate the number of tiles and boxes you need for a floor or wall, with built-in waste factor. Enter the room size, pick a standard tile size (300×300, 600×600, 1200×600 mm and more), and the calculator returns total tiles, boxes and total cost.
10% for straight, 15% for diagonal, 20% for very small rooms.
Tiles needed
35
including 4 for waste
Boxes to buy
9
Estimated cost
₹7,200
Floor area
120 sq.ft
One tile area
4 sq.ft
Calculation assumes a single rectangular floor with no skirting or border tiles. Add 1 box per 10 ft of skirting if you plan a wall-base run. Adhesive and grout are not included in the cost.
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Buying tiles is one of those decisions where the cost of getting it wrong is high. Order too few and you'll have to source the same batch later (and batches subtly differ in shade - even from the same brand), leading to visibly mismatched tile colour in patches. Order too many and you've sunk thousands of rupees in unreturnable boxes (most tile retailers don't accept returns on opened or partial-box orders). This calculator gives you the precise tile count and box count for your floor or wall, factoring in the standard 10-15% wastage that accounts for edge cuts, corner pieces, and inevitable breakage during transport and installation.
Indian homes overwhelmingly use vitrified tiles - Kajaria, Somany, Asian Granito, Nitco, RAK, Orient Bell are the top brands. Common sizes: 600×600mm (the most popular for living rooms and bedrooms), 800×800mm and 1200×600mm (premium living spaces and lobbies), 300×300mm (kitchen and utility flooring), and 250×375mm or 300×450mm (bathroom walls). Prices vary widely: economy GVT tiles ₹30-50/sq ft, mid-range glazed vitrified ₹50-90/sq ft, premium double-charge or full-body vitrified ₹100-200/sq ft, and designer tiles ₹250-500+/sq ft. The calculator helps you compute exact requirement and budget for any of these.
Enter the room length and width in feet.
Pick a tile size from the presets, or enter a custom width and height in mm.
Set tiles per box (most vitrified tiles ship 4-6 per box; smaller wall tiles ship 12-15).
Enter the price per box.
Adjust the waste factor (10% is standard for straight-laid floors; 15% for diagonal patterns).
Read the result - total tiles, boxes and final cost.
The room area in sq.ft is divided by the area of a single tile to get the raw number of tiles. A waste factor accounts for cuts at corners, breakage, and pattern alignment. The result is rounded up to the next whole tile, then divided by tiles-per-box and rounded up again, because shops sell boxes - not loose tiles. The calculator converts tile dimensions from mm to sq.ft (1 sq.ft = 92903.04 sq.mm) so you can mix metric tile sizes with feet-based room dimensions.
Boxes = ceil( ceil(Room area / Tile area × (1 + Waste%)) / Tiles per box )
Step 1: room area in sq ft = length × width. Step 2: single tile area in sq ft = (tile width mm × tile height mm) / 92903 (since 1 sq ft = 92,903 sq mm). For 600×600 mm tile: 360,000 / 92,903 = 3.875 sq ft per tile. Step 3: raw tile count = room area / tile area. Step 4: apply waste factor - multiply by (1 + waste%/100). Step 5: round up to whole tiles, then to whole boxes (since tiles can only be bought by the box).
Waste factor guidance: 10% for plain rectangular rooms with simple cuts at edges. 12-15% for diagonal-laid patterns (each tile gets cut twice instead of once). 15-20% for very small rooms (bathroom, balcony) where cuts dominate the work. 8% only if the room is exactly a multiple of tile size (rare). The waste isn't 'wasted' in a moral sense - it's the math of fitting rectangles into rooms whose dimensions aren't exact tile multiples.
Pack-size conventions: 600×600mm vitrified ships 4 tiles per box (1.5 sq m or ~16.15 sq ft per box). 800×800mm ships 3 tiles per box. 1200×600mm ships 2 tiles per box. 300×300mm wall tiles ship 9-12 per box. 250×375mm bathroom wall tiles ship 12-15 per box. Always check the actual box label since manufacturers vary slightly. Buy 1-2 extra boxes from the same batch number for future repairs - the batch number is printed on the box.
Room area: 168 sq ft. Tile area: 3.875 sq ft. Raw: 168/3.875 = 43.4 tiles. With 10% waste: 47.7, round up to 48 tiles. Boxes (4/box): 12 boxes. At ₹600/box premium GVT: ₹7,200 in tiles. Add ₹2,000 for adhesive (4 bags) and ₹500 for grout. Materials total: ~₹9,700.
Wall area: (8+6) × 2 × 8 = 224 sq ft. Subtract door (3×7 = 21) and window (3×2 = 6): 197 sq ft net. Tile area: 1.45 sq ft. Raw: 197/1.45 = 135.9. With 15% waste (small space): 156.3, round up to 157 tiles. Boxes (12/box): 14 boxes. At ₹450/box: ₹6,300.
Room area: 288 sq ft. Tile area: 7.75 sq ft. Raw: 288/7.75 = 37.2 tiles. With 12% waste: 41.6, round up to 42 tiles. Boxes (2/box): 21 boxes. At ₹1,200/box premium double-charge: ₹25,200. Large-format tiles deliver a seamless look with fewer grout lines.
Cuts at edges, around pillars and at door frames waste tiles. Breakage during loading and laying is also common. 10% waste is standard for plain floors, 15% for diagonal or herringbone patterns, and 20% for very small rooms.
Break the floor into rectangles, calculate area for each, and add them up. Enter the total in the room area field directly if your tool supports custom area.
Yes. 600×600 mm vitrified tiles dominate Indian living rooms and bedrooms. 800×800 mm and 1200×600 mm are used for premium spaces; 300×300 mm for utility areas; 250×375 mm for bathroom walls.
It varies by tile size. 600×600 mm tiles ship 4 per box; 800×800 mm ship 3 per box; 1200×600 mm ship 2 per box. Always check the manufacturer label.
If you plan a 4-inch skirting around the room, that adds approximately (perimeter × 0.33 ft) of extra coverage. Many tile shops sell pre-cut skirting tiles separately.
This tool focuses on the tiles themselves. Plan for 1 bag of tile adhesive (20 kg) per 30-40 sq.ft and 1 kg grout per 50-60 sq.ft as a rough rule.
Renovating, decorating or estimating utilities at home almost always reduces to three numbers - area, volume, and cost. Get any of them wrong by 10% and you're either short of paint and tile, or you've over-ordered and have to return material. This calculator uses the same wastage allowances, packing rules and unit conversions that contractors and material suppliers actually use in India.
Use it together with the paint, tile, electricity bill and BTU calculators to plan a complete renovation budget. Indian states have very different electricity tariffs and material prices, so the calculators expose state-wise tariffs (Maharashtra MSEDCL, Tamil Nadu TANGEDCO, Delhi BSES, Karnataka BESCOM, etc.) and let you override defaults to match your supplier's pricing.
The Tile Calculator is part of the Home & Lifestyle suite on Online Calculator Tools, alongside 6 related calculators. All tools share the same UI patterns, the same privacy-first rendering (nothing is sent to a server), and the same commitment to showing the formula and assumptions behind every result.
