Flooring Calculator

Enter room size and box coverage to get flooring boxes.

Inputs
Results
Total sq ft (with waste)
198 ft²
Boxes to buy
10
Formula
Boxes = Area × (1 + waste%) ÷ box coverage.
Example

15 × 12 ft room ≈ 198 ft² ≈ 10 boxes of 20 ft².

What you get from the Flooring Calculator

The Flooring Calculator takes a room- or project-level measurement and returns the quantities you need to buy. It's aimed at homeowners planning a renovation and at handypersons quoting a small job.

Every input is labeled with the unit it expects, and results are shown in whole packages (boxes, gallons, or bundles) so what you read is what you can put in a shopping cart.

  • Whole-package quantities you can order today
  • Waste allowance for cuts, mistakes, and touch-ups
  • Optional cost line so the budget stays visible
  • Works for one room or a whole floor

Before you start

Measure twice. Walls are rarely square and floors are rarely flat, so take the longest dimension in each direction and note any bump-outs or closets separately.

If you're matching an existing product (a specific flooring color, brand, or dye lot), buy 10% extra now. Reorders from a different batch often show a visible seam.

Making the estimate go further

Small changes save real money on flooring. Reducing waste from 15% to 10% on a large room can pay for a nicer finish; picking one product that covers the whole space avoids batch mismatches; and buying full boxes (rather than partials) usually unlocks a better per-unit price.

Frequently asked questions