Tile Calculator

Find out how many tiles and boxes to buy for a floor or wall, with cutting wastage and total cost included.

Room & Tile Details

Tiles Required

Tiles Needed
0
Boxes to Buy
0
0 sq ft
Room Area
0 sq ft
Per Tile Area
0
Extra for Wastage
₹0
Est. Cost
Concrete Calculator Brick Calculator Square Footage Calculator Paint Coverage Calculator

How Tile Quantity is Calculated

Tile estimation comes down to three numbers: your room's area, a single tile's area, and a wastage allowance for cuts.

Step 1: Room area

Room Area (sq ft) = Length × Width

Step 2: Tile area

Tile sizes in India are specified in millimetres. Converting to square feet: Tile Area = (Length in mm ÷ 304.8) × (Width in mm ÷ 304.8). A 600x600mm tile works out to about 3.87 sq ft.

Step 3: Tiles needed, with wastage

Tiles Needed = (Room Area ÷ Tile Area) × (1 + Wastage %)

The result is always rounded up, since you can't buy a fraction of a tile, and boxes needed is the tile count rounded up to a whole number of boxes based on tiles-per-box.

LayoutTypical wastage
Straight/grid layout, simple rectangular room10%
Room with many corners, alcoves or cut-outs12-15%
Diagonal or herringbone layout15-20%

What this calculator doesn't include

For example, a 12ft × 10ft room (120 sq ft) with 600x600mm tiles (3.87 sq ft each) needs about 31 tiles before wastage, and roughly 35 tiles (9 boxes at 4 tiles/box) after 10% wastage. Enter these same figures into the calculator above to reproduce this result.

Frequently Asked Questions

Divide your room's floor area by a single tile's area, then add 10-15% extra for cutting wastage. For example, a 120 sq ft room with 600x600mm (about 3.87 sq ft) tiles needs roughly 31 tiles before wastage, and about 34-36 tiles after adding 10-15%.

10% is a standard allowance for a simple rectangular room laid in a straight pattern. Rooms with many corners, cut-outs, or a diagonal/herringbone layout should use 15-20%, since diagonal cuts waste significantly more tile material than straight cuts.

600x600mm (2x2 ft) is the most common size for living rooms and bedrooms in India today, with 300x300mm often used for bathrooms and smaller spaces, and larger formats like 600x1200mm or 800x800mm increasingly popular for a fewer-joint, more seamless look.

Yes — diagonal and herringbone patterns typically waste 15-20% of tile material due to angled cuts at the room's edges, compared to 10% for a standard straight-grid layout. Increase the wastage percentage in this calculator accordingly if you're planning a diagonal layout.

Use the wall's area (length × height, minus door/window openings) in place of floor area, and use your wall tile's size instead of floor tile size. The calculation method — area ÷ tile area + wastage — is identical for floors and walls.

Vitrified tiles are made under high pressure and heat, giving them very low water absorption and high durability, making them suitable for both floors and heavy-traffic areas. Ceramic tiles are more porous, generally cheaper, and commonly used for walls and lower-traffic areas. Both come in similar size ranges, so this calculator's quantity math applies equally to either.

Yes — tiles from different production batches can have slight shade or size variations even within the same product line. Buying all tiles for one room from a single batch/lot number avoids visible mismatches, so it's worth confirming batch availability before placing your final order based on this calculator's quantity.