Floor Tile Calculator (with pattern)
Tiles needed = (room area / tile area) × pattern-waste factor. Auto-rounds to whole tiles + box count.
Result
Tiles needed
132 tiles · 14 boxes
120.0 ft² room × 10% waste = 132.0 ft² to order ($594).
- Room area120.00 ft²
- Tile area12″ × 12″ = 1.000 ft²
- Patternstraight (+10% waste)
- Extra waste %0%
- Total waste factor10.0%
- Tiles exact120.00
- Tiles with waste132.00
- Tiles to BUY (rounded up)132
- Total ft² to order132.00 ft²
- Box coverage10 ft²/box
- Boxes to buy14
- Total cost$594
Step-by-step
- Room area = 12 ft × 10 ft = 120.00 ft².
- Tile area = (12″ × 12″) / 144 = 1.000 ft².
- Waste = pattern 10% + extra 0% = 10.0%.
- Tiles = ceil(120.00 / 1.000 × 1.100) = 132.
- Boxes = ceil(132.00 / 10) = 14; cost $594.
How to use this calculator
- Enter room length × width in feet.
- Enter tile dimensions in inches (most US tile is 12″×12″, 6″×24″ plank, or 24″×24″ large-format).
- Pick the installation pattern. Herringbone and mixed-size lift waste from 10% → 20%+.
- Set extra waste 5-10% if the room has odd corners, closets, or pipe penetrations.
- Box coverage is on the tile-box label — typical 10-15 ft² for 12″ tiles, 15-22 ft² for large-format.
About this calculator
Tile-pattern choice drives waste: straight-lay loses ~10% to end-cuts; diagonal adds another 5% because every cut is on the bias; herringbone and randomised mixed-size layouts run 20%+ because the joints offset. Tile Council of North America (TCNA) install guides cite these as standard buffers — plus another 5% for inexperienced installers or rooms with many corners / closets / pipes. Always round UP to whole boxes: it is far cheaper to return one unopened box than to face mid-job dye-lot matching on a re-order. The "boxes to buy" line caps your worst-case overage at one extra box.
Frequently asked
Tile manufacturing varies enough between dye lots that mid-job re-orders rarely color-match. Industry rule: buy ≥1 full box extra; return unopened boxes after the job for credit (most US distributors accept 30-day returns).
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