Calculator guide
Size tile material using floor area, tile size, grout cuts, and waste. Use the explicitly labelled inputs below; rates, dimensions, and costs are assumptions, not live quotes.
Formula or method
Tile area in square feet = tile length in inches × tile width in inches ÷ 144. Tile count = ceiling(surface area ÷ tile area × (1 + waste/100)).
How to use this calculator
- Set Surface length (ft). The interface starts with 10; replace it with the value for your scenario.
- Set Surface width (ft). The interface starts with 8; replace it with the value for your scenario.
- Set Tile length (in). The interface starts with 12; replace it with the value for your scenario.
- Set Tile width (in). The interface starts with 12; replace it with the value for your scenario.
- Set Cutting waste (%). The interface starts with 12; replace it with the value for your scenario.
- Set Price per tile ($). The interface starts with 3.5; replace it with the value for your scenario.
- Compare the result with the worked example, then vary one assumption at a time so you can see what changes.
Worked example
Enter Surface length = 10 ft; Surface width = 8 ft; Tile length = 12 in; Tile width = 12 in; Cutting waste = 12 %; Price per tile = 3.5 $. With those assumptions, the calculator gives Surface area: 80 sq ft; Tiles to buy: 90; Tile coverage: 1 sq ft each; Tile material cost: $315.00. These outputs are calculated from the same implementation as the interactive tool.
Understanding the result
In this example, Surface area is 80 sq ft. Tiles to buy is 90. Verify measurements, manufacturer coverage, packaging, local code, and site conditions. Quantity and budget estimates do not certify structural or electrical safety.
Limitations and assumptions
- Verify measurements, manufacturer coverage, packaging, local code, and site conditions. Quantity and budget estimates do not certify structural or electrical safety.
- The worked example demonstrates the stated assumptions, not a recommendation about your personal circumstances.
Frequently asked questions
Which inputs should I check first?
For Tile Calculator, check Surface length, Surface width, Tile length, Tile width, Cutting waste, Price per tile. Keep the displayed units and select options consistent; do not treat default values as recommendations.
Why might my result differ from another tool?
Compare the other tool's tile calculator method, input units, rounding and assumptions. A matching title does not guarantee that both tools answer the same question.
Does a linked reference certify this result?
No. A reference can explain a formula or provide background for Tile Calculator, but it does not endorse this website, validate personal inputs or establish professional suitability.
Sources
Educational and planning information only. Sources are attributed background or formula references, not endorsements. Verify consequential decisions with an appropriate qualified professional.