Tile Calculator — Calculate Number of Tiles
Calculate the number of tiles needed for floor, wall, or any area. Includes wastage factor and tile cost estimation.
By SwiftCalcTools Editorial Team · Formula verified
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How to Use Tile Calculator
- 1Enter the required values in the input fields above.
- 2Click the Calculate button or results update instantly as you type.
- 3View your results in the output panel below the inputs.
- 4Adjust any values to recalculate instantly.
Frequently Asked Questions
Standard: 10% for square rooms with tiles laid straight. 15% for diagonal laying (45°) or irregular shaped rooms. 20%+ for complex patterns (herringbone, basketweave) or natural stone with variation. Always buy extra — tile batches have slight colour variation, and future repairs need matching tiles.
600×600mm (2×2 ft): typically 4 tiles/box (2.16 sq ft/tile). 300×600mm (1×2 ft): typically 8 tiles/box. 300×300mm (1×1 ft): typically 16 tiles/box. 800×800mm: typically 3 tiles/box. Always check the actual box — brands vary. The box will state coverage area.
Yes, always order 5–10% extra even after adding wastage. Reasons: tile production batches differ (shade variation), breakage during transport, future repairs when a tile cracks. Once your project is done, store leftover tiles — finding the same batch years later is very difficult.
Large tiles (600mm+) make small rooms look bigger but require flatter floors and are harder to cut. Small tiles (300mm) suit bathrooms and irregular spaces. For a 10×12 ft room, 600×600mm works well. For kitchen walls, 300×600mm is popular. The grout joint (typically 3–5mm) affects the final tile count.