Tile Calculator
Estimate tile quantity based on room size and tile dimensions.
Use decimals when needed. This estimate updates live and is safe to tweak before you buy materials.
Tile Buying Guide
This guide helps you turn your tile calculator result into a cleaner purchase plan. Use it when you want fewer return trips, better waste assumptions, and a more realistic cart.
Step 1: Measure twice
Take two independent measurements and use the larger value when they differ. That single decision prevents most material shortages.
Step 2: Set realistic waste
Simple layouts use lower waste, while angled cuts and pattern matching push waste higher. Do not force one waste value for every room.
Step 3: Buy by package unit
Suppliers sell by boxes, bundles, or rolls. Convert your estimate to purchase units and round up once at checkout.
Cost planning rule of thumb
Build your budget in three bands: material-only, material+consumables, and full project with tool contingency. This keeps expectations realistic before you buy.
Recommended for this job
Commonly paired tools and accessories
These are the practical extras people often forget until the last minute, especially when turning a rough estimate into a real purchase list.
Tile leveling systemWhy this helps: Helps keep tile faces even when you are buying for a larger layout.
Tile spacersWhy this helps: Useful for keeping grout lines consistent across the whole run.
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Tile Calculator FAQ
What if I do herringbone?
Increase waste to 15-20% for complex patterns.
Does this include grout spacing?
The estimate is close for planning. Final counts should include your layout and grout lines.
What size trowel do I need?
A general rule is to use a 1/4-inch by 1/4-inch square notch trowel for tiles up to 6 inches, and larger trowels for larger tiles.
How long should thinset cure before grouting?
Wait at least 24 to 48 hours for the thinset to fully cure before walking on the tile or applying grout.