Tile Calculator
Enter your floor or wall area, pick tile size and material, and get tile count, box count, and total installed cost in seconds.
Last updated: June 2026
Length × width of floor or wall area.
Standard: 15%. Use 20% for diagonal layouts or natural stone.
Tile Quantity & Cost Estimate
Price data sources: HomeAdvisor 2026 Tile Installation Cost · Angi 2026 Flooring Cost Guide · Floor Covering Weekly 2026 pricing · TCNA (Tile Council of North America) specifications
Last verified: June 2026
Prices reflect US national averages. Your local market may vary by ±30%.
How to Use This Tile Calculator
Step 1: Measure the length and width of the area to tile in feet. Multiply to get square footage. For rooms with cabinets or fixtures, subtract those areas (but keep 15% waste factor for cuts).
Step 2:Select your tile size. The calculator handles 6 standard sizes from 4"x4" backsplash tile to 24"x24" large-format floor tile. The sq ft per tile is pre-programmed.
Step 3: Choose material and adjust waste factor. The calculator instantly shows tile count, boxes needed, and installed cost including labor.
What Factors Affect Tile Cost?
Material choice
Ceramic is $1-$5/sq ft (budget). Porcelain is $3-$10 (better durability). Natural stone is $5-$20 (premium). Glass is $7-$30 (backsplash only). Material cost can vary 10x between budget ceramic and premium stone.
Tile size
Larger tiles (18"+, 24") require flatter subfloors and add 20-50% to labor cost. Small mosaic tiles (4"x4") cost more in labor per sq ft due to detail work. Standard 12"x12" is the sweet spot for cost and ease of installation.
Labor complexity
Straight lay (grid pattern) is cheapest. Diagonal (45-degree) adds $1-$3/sq ft. Herringbone and chevron add $3-$5/sq ft. Shower walls cost 30-50% more than floors due to waterproofing and detail cutting around fixtures.
Subfloor prep
Cement board ($1.50-$2.50/sq ft), self-leveling compound ($2-$4/sq ft), or crack isolation membrane ($2-$3/sq ft) may be needed. Skipping subfloor prep is the #1 cause of cracked tile within the first year.
Tile Cost Breakdown: What You're Actually Paying For
| Component | % of Total | What it covers |
|---|---|---|
| Tile Material | 25-40% | Tile itself, priced per square foot by material type |
| Labor | 35-50% | Surface prep, layout, cutting, setting, grouting — $4-$12/sq ft |
| Subfloor Prep | 10-15% | Cement board, self-leveling compound, crack isolation membrane |
| Grout & Thinset | 5-10% | Thinset mortar, grout, sealer, spacers, other consumables |
Source: 2026 HomeAdvisor + Angi + RSMeans. Percentages reflect typical residential tile jobs $1,000-$10,000.
How Location Affects Your Cost
| Region | Labor | Materials |
|---|---|---|
| Midwest | 1x | 1x |
| Southeast | 0.9x | 0.95x |
| Southwest | 1.05x | 1.1x |
| Northeast | 1.3x | 1.2x |
| West Coast | 1.4x | 1.25x |
To adjust: multiply the calculator's total by your region's average multiplier. Source: RSMeans City Cost Indexes 2025, adjusted for 2026.
Red Flags in Contractor Quotes
We've reviewed hundreds of quotes. These are the warning signs that a contractor may cut corners or overcharge:
- Labor quotes below $4/sq ft — likely skipping subfloor prep or using unlicensed installers
- No waste factor mentioned — a 200 sq ft job needs at least 230 sq ft of tile for cuts and breaks
- Natural stone installed without sealing — will stain permanently within months
- Glass tile installed on floors — not rated for foot traffic, will crack under weight
- Large format tile (24"+) installed without flat subfloor — will lippage and crack at joints
Stop calculating tile takeoffs by hand.
JobTread turns your room measurements into tile orders and professional bids in minutes. On a 3-bathroom tile job, the software calculated tile, grout, and thinset quantities in 5 minutes — vs. 30 minutes manually, and flagged a waste factor we'd underestimated.
Affiliate link — we may earn a commission if you sign up.
Try JobTread FreeHow Contractors Use This Calculator
The typical workflow: measure rooms with a laser distance meter, note tile selection with the client, then calculate material quantities and labor. This calculator replaces the scratch-pad math.
Always order extra: Keep 1-2 full boxes of leftover tile. Discontinued patterns are impossible to match later, and insurance repairs need exact matches. The 15% waste factor covers cuts, but buy 1 extra box beyond that.
For bids: The calculator gives raw material + labor. Add 20-30% for subfloor prep (cement board, crack membrane), permitting, and contingency for hidden water damage in bathroom tear-outs.
Tile Size & Material Reference (2026)
| Material | $/sq ft | Labor $/sq ft | Best For |
|---|---|---|---|
| Ceramic | $1-$5 | $4-$8 | Budget-friendly. Glazed surface. Walls and light-traffic floors. |
| Porcelain | $3-$10 | $4-$8 | Denser, water-resistant. Floors, showers, outdoor. Through-body color. |
| Natural Stone | $5-$20 | $6-$12 | Marble, granite, travertine, slate. Premium look. Needs sealing. |
| Glass | $7-$30 | $6-$12 | Backsplashes and accents. Not for floors. Requires careful installation. |
Tile sizes available: 4" × 4", 6" × 6", 12" × 12", 18" × 18", 24" × 24", 12" × 24".
Frequently Asked Questions
How many tiles do I need for my floor or wall?
Measure your area in square feet (length × width), then divide by the square footage per tile. A 12"x12" tile covers 1 sq ft, so a 100 sq ft room needs 100 tiles. Add 15% for waste (cuts, breaks, future repairs): 115 tiles total. For a 200 sq ft room with 12"x12" porcelain tile, you need 230 tiles or 23 boxes (if 10 sq ft per box). The calculator above handles the math for any tile size automatically.
What waste factor should I use for tile?
Use 15% waste factor for standard installations with rectangular layouts. Use 20% for diagonal layouts (45-degree patterns), bathrooms with many cuts around fixtures, or natural stone (higher breakage rate). Use 10% only for simple open spaces with large format tile and minimal cutting. Always keep 1-2 boxes of leftover tile for future repairs — discontinued patterns are impossible to match later.
How much does tile cost per square foot installed?
Installed tile costs $5-$32 per square foot including material and labor. Ceramic is the cheapest at $5-$13/sq ft total. Porcelain runs $7-$18. Natural stone is $11-$32. Glass tile (backsplash only) is $13-$42. Labor alone is $4-$8/sq ft for ceramic/porcelain and $6-$12 for stone/glass. Large format tile (24"+) and intricate patterns add 20-50% to labor cost.
Ceramic vs porcelain tile — what's the difference?
Porcelain is denser, harder, and less porous than ceramic. It's fired at higher temperatures and made from denser clay. Porcelain absorbs less than 0.5% water (vs 3-7% for ceramic), making it suitable for outdoors, showers, and high-traffic floors. Ceramic is softer, easier to cut, and cheaper — ideal for walls and backsplashes. Porcelain costs $3-$10/sq ft vs ceramic at $1-$5. Through-body porcelain (color runs through) chips less visibly than ceramic.
How much does tile installation cost per square foot?
Tile installation labor costs $4-$12 per square foot depending on material and complexity. Standard ceramic or porcelain on a flat floor runs $4-$8/sq ft. Natural stone is $6-$12 because it requires sealing and special cutting tools. Glass tile is $6-$12 due to fragility. Diagonal layouts add $1-$3/sq ft. Small mosaic sheets cost more per sq ft because of the detail work. Shower walls cost 30-50% more than floors due to waterproofing.
How much grout do I need for my tile project?
Grout needed depends on tile size, joint width, and grout type. For 12"x12" tile with 1/4" joints, a 25 lb bag of sanded grout covers about 75-100 sq ft. For 4"x4" backsplash tile with 1/8" joints, a 25 lb bag of unsanded grout covers 150-200 sq ft. Epoxy grout (stain-proof) covers about 50% less per bag and costs 2-3x more. Buy one extra bag beyond your calculated need — running out mid-job is a common problem.
Can I tile over existing tile?
Yes, if the existing tile is firmly bonded, crack-free, and clean. Score the old tile surface with a grinder (creates mechanical bond), apply a latex-modified thinset, then lay new tile. Do NOT tile over: loose or hollow-sounding tile, cracked substrates, or shower floors (water infiltration risk). Removal is always better than overlay if you can afford the labor ($2-$4/sq ft for tear-out). Tiling over adds 1/4"-3/8" to wall thickness — check that trim and outlets still fit.
How to choose grout color for tile?
Dark grout (charcoal, gray) hides stains and dirt — best for floors and high-traffic areas. Light grout (white, beige) creates a uniform look but shows every spill — best for walls and backsplashes. Matching grout to tile color creates a seamless look but makes individual tiles hard to distinguish. Contrasting grout highlights tile pattern (popular with subway tile). Epoxy grout ($25-$40/bag) resists stains permanently — worth it for white grout in kitchens. Cement grout ($5-$15/bag) needs sealing every 1-2 years.
Real Project Example
80 sq ft Bathroom Floor Retile
Phoenix, AZ · 2026
Master bathroom floor replacement: old ceramic tile removed, new 12x24 marble-look porcelain installed with heated mat.
How It Went Down
Demolition
Removed old 4x4 ceramic + cement board
Rotary hammer with chisel bit, 3 hours, filled 2 contractor bags
Subfloor prep
Installed Ditra uncoupling membrane + heated mat
Schluter Ditra $120, SunTouch mat $200 — prevents cracks and warms floor
Tile install
12x24 porcelain in running bond pattern
Large-format tile needs 1/4" trowel, thinset $35/bag, 4 boxes tile at $65/box
Grout + seal
Epoxy grout (stain-proof), sealed with penetrating sealer
Epoxy grout $45/bag — harder to work but never needs sealing again
What we learned: The heated mat added $200 but transformed the bathroom experience. In a 80 sq ft space, the mat covered the main walk path and costs about $0.03/day to run.
EstimatorSuite contractor interviews, 2026
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Flooring Sq Ft CalculatorMarcus Webb
Lead Reviewer & Construction Tech Analyst
Marcus spent 8 years working with general contractors and trade businesses before focusing on construction technology. He has personally tested 30+ estimating and project management tools with real project data.
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