Estimate tile coverage and box count for a rectangular surface, with extra material for cuts and breakage included.
Floors, backsplashes, shower walls, and other tile areas that can be measured as a rectangle or a set of rectangles.
A 12 ft × 10 ft surface with 15 ft² per box shows how coverage becomes a purchase quantity.
Default example result: 132 ft² with 10% allowance.
The calculator uses the displayed formula, applies your waste allowance, and rounds purchase quantities up. Review the assumptions before ordering and confirm product coverage with your supplier.
Formula used: length × width × (1 + cut waste)
Ten percent is a useful starting point for a simple layout. Increase it for diagonal patterns, small tiles, irregular rooms, or many corners.
Calculate each room separately, then add the coverage and box quantities so each layout receives an appropriate waste allowance.
This calculator is for preliminary planning and purchasing estimates. It does not replace professional design, local building codes, site conditions, safety checks, or supplier guidance.