How many boxes of LVP flooring?
Short answer
Floor area plus 10% waste for a straight layout, 15% for diagonal or lots of alcoves. Divide by the square feet printed on your box (they vary from about 19 to 30) and round up. Keep one box for future repairs.
This is one task. Get the whole renovation in the right order.
Enter your rooms once: every task, materials for each, what you save doing it yourself, and where you must call a pro.