Free material calculators for home and garden projects
HomeRivet has 10 calculators that tell you how much paint, concrete, tile, flooring, mulch, wallpaper, gravel, deck boards and insulation to buy. Every formula is based on manufacturer or public-agency figures, cited on each page. No sign-up required.
Walls & Floors
Paint Calculator
How many gallons of paint a room needs, after doors and windows.
Tile Calculator
Boxes of floor tile to buy, with 10% extra for cuts.
Flooring Calculator
Boxes of hardwood, laminate or vinyl plank for a room.
Wallpaper Calculator
Single and double rolls of wallpaper, adjusted for pattern repeat.