Flooring calculator
Turn room measurements into flooring packs. Include deductions, your waste allowance and the coverage printed on the pack.
Supports rectangular rooms, identical-room quantities up to 10,000, or a direct total area. Waste can be 0–100%. Pack counts are limited to 1 billion. An irregular room is not inferred from its bounding rectangle. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Flooring calculator
- Measure a room or enter a combined total area.
- Add deductions, waste and the pack's published coverage.
- Check whole packs and keep the downloaded calculation.
Useful next steps
Start with the area you need to cover
Enter the length and width of a rectangular room, optionally repeated for identical rooms. For different rooms or an irregular shape, divide the layout into rectangles, add their areas and use Direct area. The excluded area is deducted once from the total job.
Allow for your layout
Cuts, angles and installation patterns affect waste. Set your allowance to match the product instructions and layout. The calculator applies that percentage to the net area before calculating packs. It does not work out individual board cuts or optimize a laying pattern.
Buy whole packs
Enter the actual coverage per pack in square metres or square feet. Packs round up. A 20 m² floor with 10% waste needs 22 m²; at 2.2 m² per pack that is exactly 10 packs. Purchased coverage above the net area includes both your allowance and any additional pack rounding.
Take the numbers with you
The CSV, text and JSON downloads record measured area, deductions, required area, pack coverage and rounding surplus. The estimate is calculated locally. It does not validate an underlay, subfloor or installation method.