Tile Calculator

Estimate tiles, grout, mortar, and costs for your tiling project

Tile Project Calculator

Project Areas

Area 1

Tile Specifications

Layout Pattern

Installation Type

How the Tile Calculator Works

Formulas Used

Total Tiles = (Area in Sq Ft ÷ Tile Size in Sq Ft) × Waste Factor

Example: A 100 sq ft room with 18×18 inch tiles (2.25 sq ft per tile) needs approximately 45 tiles at 100% coverage, plus 10% waste = 50 tiles.

Grout Volume = (Area Sq Ft × Joint Width × Tile Perimeter) ÷ 144 × Density

Grout Weight: Varies by joint width and tile size. Larger joints and smaller tiles require more grout.

Thin-Set Mortar = Area Sq Ft × 1.5 to 2 lbs/sq ft (for standard application)

Waste Factors by Layout Pattern

Pattern Waste Factor Best For
Straight +10% Simple layouts, rectangular spaces
Diagonal +15% Contemporary looks, visual interest
Herringbone +20% Classic elegance, high-traffic areas
Brick/Offset +10% Traditional look, structural appeal

Tile Types Comparison

Tile Type Cost per Sq Ft Durability Water Resistance Best For
Ceramic $1 - $5 Good Very Good Bathrooms, kitchens, moderate traffic
Porcelain $3 - $8 Excellent Excellent High-traffic areas, wet rooms
Natural Stone $4 - $15 Good Variable Luxury spaces, needs sealing
Glass Mosaic $5 - $20 Good Excellent Accent walls, artistic features
Marble $6 - $25 Fair Good Feature areas, needs maintenance
Travertine $5 - $15 Good Good Mediterranean style, outdoor/indoor

Layout Patterns Guide

Straight Pattern

The most common and economical layout. Tiles are arranged in horizontal and vertical rows, like a grid. Perfect for beginners and cost-conscious projects. Minimizes waste with only 10% recommended buffer.

Tip: Start straight layouts from the center of the room and work outward for balanced, professional results.

Diagonal Pattern

Tiles are rotated 45 degrees, creating a dynamic appearance. Requires approximately 15% more material due to corner cutting, but creates visual movement and makes spaces appear larger.

Tip: Diagonal patterns work best in square or nearly square rooms for symmetrical appearance.

Herringbone Pattern

Rectangular tiles arranged in a V-shaped weaving pattern. Creates classic, elegant appearance and naturally hides imperfections. Requires about 20% additional material and is more complex to install.

Tip: Herringbone is excellent for high-traffic areas as the pattern masks wear and tear well.

Brick/Offset Pattern

Each row is offset by half a tile, like bricks. Provides traditional, structured look with good visual weight distribution. Requires approximately 10% additional material.

Tip: Use brick pattern with rectangular tiles for maximum visual impact.

Grout Selection Guide

Joint Width Impact

Joint width significantly affects material consumption and aesthetic appeal:

Grout Types

Pro Tip: Always purchase 10% additional grout. You may need extra for touch-ups and repairs.

Installation Tips & Best Practices

DIY Installation

Professional Installation

Our calculator estimates professional labor costs at $8-$15 per square foot, depending on pattern complexity and location. Professional installers provide:

Recommendation: Complex patterns (herringbone, diagonal) are best left to professionals for optimal results.

Frequently Asked Questions

How much waste should I plan for?

Our calculator automatically includes waste factors based on your pattern choice (10-20%). We recommend purchasing 10-15% extra tiles for breakage, future repairs, and design adjustments. Some tiles are discontinued, so extra stock is valuable insurance.

What's the difference between thin-set mortar and grout?

Thin-set mortar is adhesive used to bond tiles to the substrate. Grout fills the joints between tiles. Both are essential: mortar holds tiles in place, grout seals and beautifies the installation.

How long do tiles last?

Properly installed and maintained tiles last 10-30+ years depending on type and usage. Ceramic: 10-20 years, Porcelain: 20-30+ years, Natural stone: 20-40+ years with proper sealing.

What if I have an irregular room shape?

Use our multi-area feature to break your space into rectangles. Add separate areas for each section and our calculator will total the materials needed. For complex shapes, sketch your room and measure each rectangular section.

Do I need to seal my tiles?

Ceramic and porcelain generally don't need sealing. Natural stone (marble, travertine, slate, granite) must be sealed before grouting and periodically afterward. Grout should also be sealed after curing (wait 72 hours).

What's the best grout color for my tiles?

Grout color dramatically affects appearance. Light grout emphasizes individual tiles, dark grout creates bold patterns. Use grout slightly lighter than tile color for sophisticated look, or match for monolithic appearance.

Can I install large format tiles myself?

Large tiles (24"×24" and bigger) are heavier and require careful substrate preparation and proper trowel technique. Consider professional installation for best results and warranty protection.