Material calculator
Tile Calculator
Estimate tile count, boxes, waste, pattern allowance, and optional material cost.
These results are planning estimates only. Verify product labels, site conditions, local requirements, and professional guidance before buying or building.
Calculator inputs
Adjust the typical defaults below. Results update automatically.
Results
Review quantities, warnings, and the shopping list before buying.
Base tile area
120sq ft
Effective waste
10%
Tiles to buy
132tiles
Boxes to buy
14boxes
Material list
- 132 tiles Tile1 sq ft each
- 14 boxes Tile boxes
- Verify separately Grout, mortar, trim, spacersNot estimated in MVP
Breakdown
| item | length | width | unit | areaSqFt | pattern | extraWastePercent |
|---|---|---|---|---|---|---|
| Area 1 | 12 | 10 | ft | 120 | ||
| Pattern allowance | straight | 0 | ||||
| Area with waste | 132 |
How to use
- Enter one or more tile areas.
- Enter tile dimensions and choose a layout pattern.
- Use tiles per box or box coverage to estimate cartons.
Input guide
- Tile dimensions are in inches for US product labels.
- Diagonal and herringbone patterns add extra waste automatically.
- Use either tiles per box or box coverage, depending on what the label provides.
Common mistakes
- Forgetting pattern waste for diagonal layouts.
- Using nominal tile sizes without checking actual dimensions.
- Treating boxes as divisible instead of rounding up.
Assumptions and limitations
- No grout, mortar, trim, niches, stairs, curved areas, or exact layout optimization is included.
- Pattern allowance is a planning default, not a cut plan.
- Optional price is user-entered only.
Formula
- Base area = sum of each area length x width.
- Effective waste = base waste plus pattern allowance.
- Area to tile = base area x (1 + effective waste / 100).
- Tile count = area to tile / one tile area, rounded up.
Example
A 100 sq ft floor with 10% waste and 12 in x 12 in tile needs 110 one-square-foot tiles before box rounding.
FAQ
Does this calculate grout bags?
No. The MVP estimates tile quantities and boxes only; grout depends on joint width, tile thickness, and product coverage.
Why do patterns change waste?
Diagonal and herringbone layouts usually create more cuts and offcuts, so the calculator adds a planning allowance.