Flooring calculator

Packs = floor area × (1 + allowance ÷ 100) ÷ coverage per pack, rounded up.

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Floor area

Coverage per pack

More inputs and assumptions

Extra allowance (%)

Answer

…

Packs = floor area × (1 + allowance ÷ 100) ÷ coverage per pack, rounded up.

More results

Precision and calculation record

Decimal places in numeric results and text downloads

Rounding changes displayed numbers, not the calculation. Text, fractions, matrices and CSV schedules keep their own formatting. Automatic keeps up to 12 significant digits, with money shown to cents where applicable.

Saved scenario

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Formula and assumptions

Use the manufacturer’s pack coverage and consistent area units. Allowance is your choice based on layout, cuts and replacement needs.

Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Check another calculation

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Updated 2026-09-26

Using Flooring calculator

Packs = floor area × (1 + allowance ÷ 100) ÷ coverage per pack, rounded up.

Use the manufacturer’s pack coverage and consistent area units. Allowance is your choice based on layout, cuts and replacement needs.

Next: Tile calculator

A worked example

With floor area = 120, coverage per pack = 20, extra allowance (%) = 10, the packs to buy is 7.

Next: Drywall calculator

Before you use the result

Use the manufacturer’s pack coverage and consistent area units. Allowance is your choice based on layout, cuts and replacement needs.

Example results for floor area

These examples use Coverage per pack: 20; Extra allowance (%): 10. They are reference calculations, not recommended settings.

Floor area	Packs to buy
60	4
120	7
240	14

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