Calculate flooring for one or more rooms. Add a waste allowance, then include box coverage or pricing if needed.
QUICK START
Start with your floor measurements and waste allowance. Add box coverage or a material price only when you need a purchase quantity or cost estimate.
Choose “Measure length and width”, select your measurement unit, and enter the room dimensions. Each room’s area appears automatically. Add another room for additional spaces, or choose “I already know the total area” to enter a measured area directly.
The calculator starts with a 10% allowance for cuts and offcuts. Adjust this percentage to suit your flooring product, room layout, and supplier’s instructions. Waste is added to the combined floor area.
For a box estimate, enter the coverage printed on the package and select its area unit. For a cost estimate, enter your material price, choose a price per square foot, square metre, or box, and select the currency. A price per box also requires box coverage.
Select “Calculate Flooring” to see the required area including waste. When box coverage is entered, the calculator rounds up to whole boxes and uses their purchased coverage for area-based material costs. A price per box is multiplied by the box count. Calculate again after changing any input.
Measure each floor section once: enter all room dimensions in the selected measurement unit. Changing a measurement or area unit automatically converts the values already entered. For an irregular floor, work out its area with the square footage calculator and enter the total using “I already know the total area”. Select “Clear” to start a new estimate.
WORKED EXAMPLE
This example shows how room measurements, a waste allowance, and package coverage determine the number of boxes to buy and the estimated material cost.
Length × width = 12 × 10 = 120 ft².
10% of 120 ft² = 12 ft² extra.
Required flooring = 120 + 12 =
132 ft².
132 ÷ 20 = 6.6 boxes, rounded up to
7 boxes.
Purchased coverage = 7 × 20 =
140 ft².
Purchased coverage × price per square foot = 140 × USD 3.00 = USD 420.00.
The price is an illustrative input: use your supplier’s price for your own estimate. Without box coverage, the calculator uses the required 132 ft² and estimates USD 396.00. With box coverage, it uses the 140 ft² purchased in 7 whole boxes. The additional 8 ft² comes from box rounding. Installation, delivery, tax, underlay, and other accessories are excluded from this material estimate.
Use your estimate as a starting point, then check these practical details before placing an order.
Include alcoves, closets, and other spaces receiving new flooring. Exclude areas where flooring will not be installed, and count each floor section only once. Split an L-shaped room into rectangles and enter each part separately.
Use the coverage printed on your chosen tile, laminate, or vinyl flooring box. Coverage can vary between products, even when their boards or tiles look similar. Enter that coverage to calculate the number of whole boxes to buy.
Diagonal layouts, patterned floors, and rooms with many corners can create more offcuts. Choose a waste allowance based on the product and your installer’s layout plan. For Pergo products, review the product-specific installation instructions before finalising your order.
Add installation, delivery, and applicable tax to your material estimate. Depending on the flooring, you may also need underlay, adhesive, grout, trims, removal of existing flooring, or subfloor preparation.
Find answers about flooring types, measurements, box quantities, and material cost estimates.
Yes. It estimates the floor area and adds your chosen waste allowance. For flooring sold in boxes, enter the coverage printed on the packaging to estimate whole boxes. It does not calculate individual tile or plank counts, grout quantities, or an installation layout.
Divide an L-shaped room into rectangles that do not overlap, then enter each rectangle as a separate room. For other shapes, calculate the total floor area first and enter it using “I already know the total area”. Include only the spaces receiving flooring and count each section once.
Use decimal feet or enter the full measurement in inches. For example, 12 feet 6 inches is 12.5 feet or 150 inches. To calculate decimal feet, divide the inches by 12 and add the result to the feet. All room dimensions use the selected measurement unit. Changing that unit automatically converts the numbers already entered.
No. If your entered total already includes a waste allowance, set the waste percentage to 0 to avoid adding it twice. Otherwise, enter the measured floor area and choose a waste percentage suited to your flooring product and installation layout. The starting value of 10% is adjustable.
Boxes are rounded up to the next whole number. If you need 132 ft² including waste and each box covers 20 ft², the calculation is 132 ÷ 20 = 6.6. You would buy 7 boxes, providing 140 ft². The extra 8 ft² comes from box rounding and is separate from the waste allowance already included.
For a price per ft² or m², the calculator multiplies the required area including waste by your price. If box coverage is also entered, it uses the coverage purchased in whole boxes instead. For a price per box, it multiplies the rounded box count by the box price, so box coverage is required. Installation, delivery, tax, and accessories are excluded from this material estimate.
It can estimate the floor area and an area-based material cost. It does not calculate roll lengths, seam placement, or pattern matching. For a separate carpet estimate, use the carpet calculator. Have your supplier or installer confirm the roll quantity and cutting plan before ordering.
No. The currency selection labels the estimated cost; it does not apply an exchange rate. Enter your material price in the same currency you select. Measurement and area units convert automatically, but currencies do not.
Enter your floor measurements and choose a waste allowance. Add optional box coverage to find how many boxes to buy, or enter a material price to estimate your flooring cost.
Use the Flooring Calculator