Tile Calculator Bangladesh

How to Use

Floor & Wall Tiles Formula & How It Works

Effective tile area =
  (tile width + grout gap)
  × (tile height + grout gap)

Base tiles = Room area ÷ Effective tile area

Buy quantity =
  Base tiles × (1 + wastage ÷ 100)
  — always rounded up

By tile price:
  Total = Buy quantity × Price per tile

By sqft price:
  Total = (Room sqft × wastage factor)
          × Price per sqft

If both entered:
  Both costs shown for comparison

Example Calculation for Floor & Wall Tiles

Tiling Tips from Professionals

• 1

  Always Buy 10% Extra — Batch Matching Is Unreliable

  Tile colour, shade, and texture vary between production batches. A replacement tile ordered months later will rarely match exactly. Always buy 10% (or 15% for diagonal patterns) extra upfront and keep leftovers sealed in the original box.

  Buy quantity = Tiles needed × (1 + wastage %)
  Minimum spare: 5–10 tiles after installation

• 2

  Add 15% Wastage for Diagonal Patterns

  Diagonal (45°) and herringbone layouts require tiles to be cut at corners and edges at angles, generating triangular offcuts that cannot be reused. The standard 10% buffer is insufficient — use 15% as a minimum for any non-straight pattern.

  Diagonal wastage = Tiles needed × 1.15
  Herringbone wastage = Tiles needed × 1.15–1.20

• 3

  Check Tile Thickness for Floor Applications

  Floor tiles must be at least 8–10 mm thick to withstand foot traffic and furniture loads without cracking. Wall tiles are typically thinner (6–8 mm) and should never be used on floors. Always check the manufacturer's specification before purchase.

  Floor minimum: 8–10 mm thick
  Wall tiles: 6–8 mm (not for floors)

• 4

  Use Non-Slip Tiles for Wet Areas

  Polished and glazed tiles become dangerously slippery when wet. For bathroom floors, kitchen areas, balconies, and outdoor spaces, always specify matte or textured tiles with a PEI rating of 3 or above. The calculator works for all tile types — just ensure your selection is appropriate for the surface.

  Wet areas: PEI rating ≥ 3, R9 or higher slip resistance

• 5

  Larger Tiles Make Rooms Look Bigger — But Waste More

  24×24 inch or 60×60 cm tiles visually expand small rooms by reducing grout lines. However, larger tiles produce more waste in small or irregular rooms because more cuts are needed at edges. For rooms under 100 sqft, 12×12 or 16×16 inch tiles often give better yield.

  Small room (< 100 sqft): 12×12 or 16×16 in
  Large room (> 200 sqft): 24×24 or 60×60 cm

• 6

  Plan Grout Width Carefully — It Affects the Final Look

  A 2–3 mm grout gap gives a clean modern look with minimal visible joints. A 5–10 mm gap suits rustic or outdoor tiles and hides slight size variation. Wider grout joints require more grout material — budget approximately 1 kg of grout per 5–7 sqm for standard joints.

  Standard: 2–3 mm gap
  Rustic/outdoor: 5–10 mm gap
  Grout: ~1 kg per 5–7 m²

Frequently Asked Questions

References & Data Sources for Floor & Wall Tiles

• ↗BTMA (Bangladesh Textile Mills Association) — tile import standards and commercial classification used in Bangladesh
• ↗ISO 10545-2 — Ceramic tile dimension, classification, characteristics and testing (international standard)
• ↗RAK Ceramics BD — tile coverage at 80 tiles per 100 sqft standard (BD market specification)
• ↗Bangladesh Schedule of Rates 2023–24 — price ranges compiled for Dhaka wholesale tile market (Chalantika, Banani, Dhanmondi)

Price ranges are indicative. Always get current quotes from your supplier before budgeting. Last reviewed: May 2026.