Laminate is bought by the box, so this view divides your area by box coverage after a 10% waste allowance. Let the planks acclimate in the room for a few days before installing or seasonal movement opens gaps.
Field notes
Add 10% for straight-lay planks and 15% for diagonals, long boards, or a room with lots of jogs — offcuts pile up fast. Buy it all in one lot and let it acclimate in the room for a few days before installing, or seasonal movement opens gaps. Keep a spare unopened box; matching a discontinued run years later is nearly impossible.
How the laminate flooring calculator works
The math behind the tool:
flooring ft² = room area × (1 + waste%)
boxes = flooring ÷ box coverageSources: National Wood Flooring Association (flooring waste factors and acclimation).