Tile Calculator

Precision Tile Calculator

Results:

Total Surface Area: 0 sq ft

Tiles Required (Base): 0

Tiles Including Wastage: 0

Estimated Material Cost: $0.00

function calculateTiles() { var areaL = parseFloat(document.getElementById('areaLength').value); var areaW = parseFloat(document.getElementById('areaWidth').value); var tileL = parseFloat(document.getElementById('tileLength').value); var tileW = parseFloat(document.getElementById('tileWidth').value); var grout = parseFloat(document.getElementById('groutWidth').value); var waste = parseFloat(document.getElementById('wastage').value); var priceSq = parseFloat(document.getElementById('pricePerSqFt').value); if (isNaN(areaL) || isNaN(areaW) || isNaN(tileL) || isNaN(tileW)) { alert("Please enter valid numbers for dimensions."); return; } var totalSqFt = areaL * areaW; // Convert everything to inches for tile calculation var areaInches = totalSqFt * 144; var singleTileArea = (tileL + grout) * (tileW + grout); var baseTiles = Math.ceil(areaInches / singleTileArea); var totalTiles = Math.ceil(baseTiles * (1 + (waste / 100))); var totalCost = totalSqFt * priceSq * (1 + (waste / 100)); document.getElementById('resArea').innerText = totalSqFt.toLocaleString(); document.getElementById('resBaseTiles').innerText = baseTiles.toLocaleString(); document.getElementById('resTotalTiles').innerText = totalTiles.toLocaleString(); document.getElementById('resCost').innerText = '$' + totalCost.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('tileResult').style.display = 'block'; }

---

How to Use the Tile Calculator for Your Next Project

Planning a renovation for your kitchen backsplash, bathroom floor, or outdoor patio requires precision. Our Tile Calculator is designed to help you determine exactly how many tiles you need to purchase, factoring in grout lines and the inevitable "wastage" that occurs during cutting and fitting.

The Importance of the Wastage Factor

A common mistake in DIY tiling is buying only the exact number of tiles needed for the square footage. Professional contractors recommend adding 10% to 15% wastage. This covers:

• Tiles that break during the cutting process.
• Small off-cuts that cannot be used elsewhere.
• Complex shapes around pipes, corners, or toilets.
• Future repairs (it is vital to keep a few spare tiles from the same batch for color matching).

Step-by-Step Calculation Guide

To calculate tiles manually, follow these steps:

1. Measure the Room: Multiply the length and width of the floor or wall in feet to find the square footage (SqFt).
2. Calculate Single Tile Area: Convert your tile dimensions to feet or inches. For a 12×12 inch tile, the area is 1 square foot. Note: Our calculator includes the grout gap in this calculation for higher accuracy.
3. Divide and Round Up: Divide the total area by the single tile area. Always round up to the nearest whole tile.
4. Add Wastage: Multiply the result by 1.10 (for 10% waste) or 1.15 (for 15% waste).

Realistic Project Examples

Project Type	Area Size	Tile Size	Estimated Tiles
Standard Bathroom	50 sq ft	12″ x 12″	~55 tiles
Kitchen Backsplash	30 sq ft	3″ x 6″ (Subway)	~265 tiles
Large Patio	200 sq ft	24″ x 24″	~55 tiles

Tile Buying Tips

When you head to the store, check the Batch Number or Lot Number. Tiles produced at different times can have slight variations in color (dye lot) and size (caliper). Buying everything at once ensures a uniform look across your entire surface.