Tile Calculator
Estimates number of tiles needed for floors or walls accounting for cuts and waste factor
Length of the room in feet
Width of the room in feet
Size of each tile
Extra tiles to account for cuts and waste
Enter room dimensions to see floor area
Minimum tiles needed without waste
Total tiles including waste percentage
Number of boxes at 10 tiles per box
Frequently Asked Questions
How much extra tile should I buy for waste?
Plan for 10% extra for straight lay patterns and 15-20% for diagonal or herringbone patterns. Complex room shapes with many cuts also increase waste. It is always better to have extra tiles than to come up short mid-project.
What tile size is best for small rooms?
Larger tiles (12x24 or 18x18) can actually make small rooms look bigger because there are fewer grout lines. However, smaller tiles (6x6 or mosaic) work better for shower floors where slope and drainage require more flexibility.
How do I calculate tiles for a room that is not rectangular?
Break the room into rectangular sections, calculate each section separately, then add them together. Always round up. For L-shaped rooms, treat each leg as its own rectangle and sum the tile counts before adding waste.
How many tiles come in a box?
It varies by tile size and manufacturer. A box of 12x12 tiles typically holds 10-12 tiles covering 10-12 square feet. Larger 24x24 tiles may have 4-6 per box. Always check the box label for exact square footage coverage.
Related Calculators
Flooring Calculator
Estimates flooring material quantities for tile, hardwood, laminate, vinyl, or carpet by room dimensions
Grout Calculator
Determines the amount of grout needed based on tile size, spacing, and area
Thinset Calculator
Calculates thinset mortar quantity needed for a tiling project by area and trowel notch size
Carpet Calculator
Estimates carpet yardage and padding needed based on room dimensions