Flooring Calculators
Three flooring materials priced the way they are actually sold: carpet by the roll width, hardwood by the bundle, vinyl plank by the carton — each with its own waste and its own underlayment.
There are 3 calculators here: Carpet & Pad Cost Calculator (square yards of carpet, pad and installed cost), Hardwood Flooring Cost Calculator (square footage, waste and installed cost for hardwood floors), and Luxury Vinyl Plank Cost Calculator (box count, underlayment, transitions and cost for LVP flooring).
They all work the same way: quantity first, then a waste allowance you can change, then a price built from verified figures and adjusted for your state. Cost is always a range rather than a single number, and every assumption behind it is printed on the page with its source and the date it was last checked.