12×12 Tile Calculator

The 12-by-12-inch tile is the workhorse of the flooring world. Affordable, widely available, and easy to install, square-foot tiles are the default choice for kitchens, bathrooms, laundry rooms, and entryways across residential and light-commercial projects. Their 1:1 ratio means every tile covers exactly one square foot, making quantity calculations straightforward, but you still need to account for cuts along walls, waste from breakage, and pattern choices that affect how many full tiles you can use. This calculator is pre-loaded with 12×12-inch tile dimensions in a straight grid pattern, the most efficient layout for square tiles. Enter your room length and width, and the tool instantly shows how many tiles you need, where cuts will fall, and how much waste to expect. The visual preview renders your room to scale so you can see whether centering the layout produces a more balanced look than starting from one corner. You can also switch to a diagonal pattern for a more dynamic appearance, though this increases waste due to 45-degree cuts along every wall. For rooms with alcoves, closets, or other irregular shapes, toggle advanced mode to build a custom room outline and get an accurate count that accounts for every angle. Use the cost estimator to calculate your total material budget based on price per tile or per square foot.