How the calculation works
Divide the area by the face area of one tile, then round up whole tiles. Apply waste before rounding for a purchase estimate.
Simple example
A 10 × 10 ft area with 12 × 12 in tiles takes 100 tiles before waste and 110 at 10% waste.
Common question
Does grout spacing change the result?
Yes. This simple estimate ignores grout lines; check your tile layout and carton coverage.
Results are estimates. Check product coverage, site conditions and professional or code requirements before buying or building.