About TileCalculator.us
What We Do
TileCalculator.us provides a free, accurate tile calculator for homeowners, DIYers, tile installers, and contractors. Our goal is to make tile quantity estimation simple, reliable, and accessible to anyone planning a tile project.
Whether you’re tiling a bathroom floor, a kitchen backsplash, a shower enclosure, or an entire home, our tile calculator handles the math — including multiple surfaces, opening deductions, grout spacing, waste percentages, and box calculations.
Our Mission
Tile projects fail when people underestimate material quantities. Running short mid-installation — especially when the leftover stock is from a different production lot — is one of the most costly mistakes in home improvement.
“Nobody should run out of tile halfway through a project. We built TileCalculator.us to give you an accurate count — waste and full boxes included — before you spend a dollar at the store.”
We built it to be:
- Accurate — calculations checked against the formulas the tool uses
- Complete — accounts for waste, grout spacing, and box rounding
- Simple — easy for beginners without hiding options from pros
- Free — no signup, no subscription, no cost
- Private — every calculation runs in your browser
Who Uses TileCalculator.us
Planning a bathroom renovation, kitchen update, or new flooring.
Getting the math right before heading to the tile store.
Producing quick, reliable estimates when quoting jobs.
Estimating material quantities for renovation projects.
Helping clients understand material needs and costs.
Editorial Standards
Every calculation example on this site is worked out by hand and checked against the formulas our calculator uses. Technical claims about installation — such as slip-resistance ratings or grout-joint guidance — are based on published industry standards, not opinion. When a figure is a rule of thumb (like a 10% waste allowance) rather than a strict requirement, we say so.
How Our Calculator Works
Our calculator uses industry-standard formulas for tile estimation. See our How It Works page for complete formula documentation, including how we handle grout spacing, waste percentages, opening deductions, and box rounding.
All results are rounded upward (using ceiling rounding) so you never end up one tile short, and we always recommend buying whole boxes rather than individual tiles.
Important Notice
TileCalculator.us provides estimates for planning purposes. Actual material requirements can vary depending on room geometry, installation method, tile breakage, grout joint width, and manufacturer specifications. Always confirm final quantities with your tile installer or supplier before purchasing.
Ready to plan your project?
Use the tile calculator for an instant estimate, or browse our tile calculation guides. Questions or a bug to report? Contact us — we read every message.