Calculate Tile

Professional Tile Calculator

Accurately estimate floor and wall tiling requirements for your project.

Results Summary

Total Area: 100.00 sq. ft.

Area per Tile: 1.02 sq. ft.

Tiles Required (Net): 99 tiles

Wastage Quantity: 10 tiles

Final Order Total

109 Tiles

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How to Calculate Tiles for Your Flooring Project

Estimating the number of tiles needed for a renovation project requires precision. Ordering too few results in project delays, while ordering too many is a waste of money. Our professional tile calculator takes the guesswork out of the equation by accounting for surface area, individual tile size, grout lines, and essential wastage.

The Tile Calculation Formula

To calculate the number of tiles manually, you can use the following steps:

1. Calculate Surface Area: Multiply the length and width of the room (e.g., 10ft x 12ft = 120 sq. ft.).
2. Calculate Individual Tile Area: Convert your tile dimensions to feet and add the grout width (e.g., for a 12″ tile with 1/8″ grout: (12.125/12) x (12.125/12) = 1.021 sq. ft.).
3. Divide: Divide the total surface area by the area of one tile.
4. Add Wastage: Add 10% to 15% to cover cuts, breaks, and future repairs.

Why You Must Include Wastage

Wastage is critical for several reasons:

• Corner Cuts: Tiles rarely fit perfectly into room dimensions; you will need to cut edges to fit.
• Breakage: Tiles are ceramic or stone and can crack during shipping or installation.
• Pattern Complexity: If you are laying tiles in a "Herringbone" or "Diagonal" pattern, you should increase wastage to 15% or 20%.
• Dye Lots: Tiles are made in batches. If you run out, a new batch might have a slightly different color shade.

Example Calculation Table

Room Size	Tile Size	Total Tiles (10% Waste)
100 sq. ft.	12″ x 12″	110
100 sq. ft.	24″ x 24″	28
200 sq. ft.	6″ x 24″ (Plank)	220

function calculateTiles() { var roomL = parseFloat(document.getElementById('roomLength').value); var roomW = parseFloat(document.getElementById('roomWidth').value); var tileL = parseFloat(document.getElementById('tileLength').value); var tileW = parseFloat(document.getElementById('tileWidth').value); var grout = parseFloat(document.getElementById('groutWidth').value) || 0; var waste = parseFloat(document.getElementById('wastage').value) || 0; if (isNaN(roomL) || isNaN(roomW) || isNaN(tileL) || isNaN(tileW)) { alert("Please enter valid numbers for dimensions."); return; } // Calculation Logic // 1. Total Square Footage var totalArea = roomL * roomW; // 2. Individual Tile Area including grout (converted to feet) // Divide by 12 to convert inches to feet var effectiveTileL = (tileL + grout) / 12; var effectiveTileW = (tileW + grout) / 12; var singleTileArea = effectiveTileL * effectiveTileW; // 3. Raw Count var rawTilesNeeded = totalArea / singleTileArea; var netTiles = Math.ceil(rawTilesNeeded); // 4. Wastage var wasteCount = Math.ceil(netTiles * (waste / 100)); var finalOrderTotal = netTiles + wasteCount; // Update UI document.getElementById('resTotalArea').innerHTML = totalArea.toFixed(2) + " sq. ft."; document.getElementById('resTileArea').innerHTML = singleTileArea.toFixed(3) + " sq. ft."; document.getElementById('resNetTiles').innerHTML = netTiles + " tiles"; document.getElementById('resWasteQty').innerHTML = wasteCount + " tiles"; document.getElementById('resFinalTotal').innerHTML = finalOrderTotal + " Tiles"; } // Initialize on load window.onload = function() { calculateTiles(); };