Flooring calculator

Turn room dimensions and box coverage into the number of boxes to buy. Your inputs stay on this device.

Currency

Metric / US customary

Measured area

Room lengthftRoom widthftCoverage per boxsq ftWaste allowance%Price per box¤

Plan to buy

9boxes of flooring

Purchase coverage: 198 sq ft for a 180 sq ft room. Estimated cost: $522.00.

Formulalength × width × (1 + waste ÷ 100)adjusted area ÷ coverage per box

Check whether the manufacturer recommends more waste for angled layouts, color matching or future repairs.

Measurement guide · not to scale

ARoom length
BRoom width

Project estimate →

How to use it

Measure once. Check the label. Round up.

Enter the finished dimensions of the area.
Copy coverage, package size and price from the product you will actually buy.
Use the result as a planning estimate, then confirm field conditions and supplier guidance.

Source & limits

Transparent by default

The editable defaults are starting points, not hidden guarantees. Product yield, pattern, breakage and site conditions can change the purchase quantity.

Formula: adjusted room area ÷ coverage per box →Read our calculation standard →

Calculation checks: worked examples, unit conversions and package rounding · 27 September 2026. Planning estimates; confirm product-specific data.

Keep planning

Other project calculators

▰PaintEstimate interior wall area, paint volume and containers after subtracting doors and windows.▦TileEstimate floor area, tiles, boxes, waste allowance and purchase cost.▰ConcreteEstimate slab volume and how many concrete bags to buy, with editable bag yield, weight and waste.▥WallpaperEstimate strips and rolls while accounting for wall height and pattern repeat.▤DrywallEstimate wall and ceiling area and full drywall sheets to buy.⌂RoofingEstimate sloped roof area, roofing squares and full bundles to buy.▧InsulationEstimate net wall or ceiling area and full insulation packs to buy.

MMeasureMint

Practical project math. Free, private and clear.

English

English Español Português (Brasil)Français 日本語 Русский Bahasa Indonesia 简体中文 한국어