Flooring Calculator — Free Online Flooring Calculator
Work out how much flooring and how many boxes you need. 100% free, no signup.
Boxes needed
0
Floor area0 ft²
With waste0 ft²
Extra for cuts0 ft²
How much flooring do I need?
Calculate the room's area (width × length), add 10% for straight-lay or 15% for diagonal/herringbone patterns, then divide by the coverage printed on the flooring box. Always round up to full boxes and keep a spare for future repairs.
Redesign the whole room, not just the numbers
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Frequently asked questions
How much extra flooring should I buy?
Add 10% for standard layouts and 15–20% for diagonal or herringbone patterns. Keep at least one plank spare for future repairs.
Does this work for laminate, vinyl and hardwood?
Yes — just enter the coverage per box from the product you are buying; the math is the same for all plank flooring.
See the floor in your room first?
Download RoomGPT free and preview flooring and full redesigns on a photo of your real room.