Tile Calculator (Tiles & Boxes)
Number of floor or wall tiles and boxes for a room from the area, tile size and wastage — with the approximate cost.
Result
How to use
- 1
Enter the length and width of the floor (or wall) in feet.
- 2
Choose the tile size, wastage and tiles per box from the box label.
- 3
See the tiles, boxes and approximate cost to buy.
Questions
How much extra tile should I buy?
Add 5–10% for straight laying and 12–15% for diagonal or herringbone patterns or rooms with many corners. Keep a few spare tiles for future repairs — the exact shade can be hard to match later.
How many sq ft is a 600 × 600 mm tile?
600 × 600 mm = 0.36 m² ≈ 3.875 sq ft. A box of 4 covers about 15.5 sq ft. A 2 × 4 ft (600 × 1200 mm) tile covers about 7.75 sq ft.
Does the joint gap change the count?
Slightly — a 2–3 mm spacer gap reduces the count by well under 1% for large tiles, so the wastage allowance covers it.
About this Tiles tool
Tile Calculator (Tiles & Boxes) — Number of floor or wall tiles and boxes for a room from the area, tile size and wastage — with the approximate cost. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Enter the length and width of the floor (or wall) in feet.
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Results are estimates to help you plan. They are not financial, tax or medical advice.