Tile Calculator
Estimate tile count, box count, grout bags, thinset bags, waste-adjusted coverage, and rough material cost from room size, tile size, grout joint, and layout pattern.
Last updated: 2026-03-25
Tile calculator
Enter your values
Translate room size, tile size, and layout waste into a more realistic tile order before you buy materials.
Estimated Material Cost
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Enter room and tile dimensions to estimate boxes, grout, thinset, and rough material cost.
Calculation History(0)
Example calculations
Tap an example to prefill the calculator with sample values.
Kitchen porcelain
12x10 room with 12x24 tile
A common kitchen refresh where waste, grout, and thinset all matter to the purchase plan.
Result: A standard room still needs more than raw square footage once waste and supporting materials are included
Diagonal mudroom
9x9 room with smaller diagonal tile
Diagonal patterns usually raise the count because edge cuts and offcuts grow quickly.
Result: Diagonal layouts usually add box count faster than the room size alone suggests
How the tile estimate works
The calculator turns room dimensions into square footage, adds waste based on your chosen installation pattern, then converts that area into tiles and full boxes using the tile face size and box count.
It also estimates grout and thinset with rule-of-thumb coverage assumptions so the result includes the supporting materials that are easy to underbuy when you only count tile.
Tile calculator FAQs
How layout waste and grout spacing affect the final order.
Why does the pattern change the tile count?
Because diagonal and herringbone layouts create more cuts and offcuts around room edges. The calculator adds extra waste for those patterns on top of your own base waste allowance.
Are grout and thinset quantities exact?
No. They are planning estimates based on square footage and grout-joint width. Real coverage varies with trowel choice, tile thickness, substrate flatness, and installer technique.
Embed this calculator
Copy the code below to embed this calculator on your website or blog. It's free — no API key needed.
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Optional: auto-resize script
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var frames = document.querySelectorAll('iframe[src*="calc.mintloop.dev"]');
frames.forEach(function(f) {
if (f.contentWindow === e.source) {
f.style.height = String(Math.max(0, Number(e.data.height) || 0)) + 'px';
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</script> Related tools
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