DIY material calculators
Every calculator here is free, needs no account, and runs entirely in your browser. Each one plans a whole project — not just one room — and prints a shopping list you can take to the store.
Paint Calculator
Work out how many gallons of paint you need across every room — walls, ceilings, trim and primer — and print one shopping list for the whole job.
Flooring Calculator
Calculate flooring boxes with waste built in for straight, diagonal or herringbone layouts, compare materials side by side, and print your order list.
Mulch & Soil Calculator
Convert beds and borders into cubic feet, cubic yards and bags of mulch, soil or gravel — then see whether buying bags or bulk delivery costs less.
Concrete Calculator
Add slabs, post holes, footings and steps, then get cubic yards, 40–90 lb bag counts from manufacturer yields and a ready-mix order with your delivery fee.