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Paint Tile Calculator - Material Quantity Estimator

Paint / Tile Calculator

Calculate paint and tile quantities based on wall and floor area

Paint Calculator

Wall Width (m)

Wall Height (m)

Number of Walls

Number of Coats

Number of Doors

Number of Windows

Paint Coverage per 1L (㎡)

Select Paint or Tile mode

Enter wall or floor dimensions

Paint mode: Set wall count, coats, doors/windows

Tile mode: Set tile size, grout width, waste %

Click 'Calculate' to see required material quantities

Living Room Paint

For 4 walls (5m wide, 2.4m high) with 2 coats, minus 1 door and 2 windows, calculate the exact paint needed (about 8-10L).

Bathroom Tiles

For a 2m×3m bathroom floor with 30×30cm tiles, calculate ~74 tiles needed including grout spacing and 10% waste.

Budget Planning

Pre-calculate paint and tile quantities to verify contractor quotes and purchase exact amounts to save budget.

Always buy 10-15% extra paint. Even same colors may vary between manufacturing batches
Get at least 10% extra tiles for cutting waste and future repairs
Paint coverage varies by product — check the label (typically 8-12㎡/L)
Wall condition (rough, new, repaint) affects coverage
Large tiles suit big spaces, small tiles suit small spaces — consider visual effect

Paint area = (wall width × height × wall count) - (door + window area)
Paint needed (L) = net area × coats ÷ coverage per liter
Tile count = floor area ÷ (tile area + grout adjustment)
Average door area: ~1.89㎡ (0.9m × 2.1m)
Average window area: ~1.5㎡ (1.0m × 1.5m)

Frequently Asked Questions

How many coats of paint are recommended?

Generally 2 coats are recommended. Going from light to dark may need only 1 coat, while dark to light may require 3+ coats.

How much area does 1L of paint cover?

It varies by product, but typical latex paint covers 8-12㎡ per liter. Check the product label for specifics.

What's the typical grout width for tiles?

Generally 2-5mm. Floor tiles use 3-5mm, wall tiles 2-3mm. Large format tiles (60×60cm+) can use 2mm or less.

How much waste allowance should I plan for tiles?

10% is standard. Diagonal or complex patterns may need 15-20%. Always get tiles from the same lot for color consistency.

Should ceiling paint be calculated separately?

Yes, ceiling area = room width × length. Ceiling paint is often a different product from wall paint.

How much adhesive and grout do I need for tiling?

Adhesive: typically 3-5kg per ㎡. Grout: 0.5-1.5kg per ㎡ depending on tile and grout size. Follow manufacturer recommendations.

Important Notice

This calculator is for reference only. Consult a professional for actual construction.
Actual quantities may vary due to wall textures, curves, and special structures.
Buy materials from the same batch/lot to minimize color differences.

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