Know what to buy before you drive to the store

Every calculator here ends the same way: a shopping list in store units — bags, gallons, boxes, rolls, pallets — with waste already figured in. Measure once at home, buy once at the store.

Mulch CalculatorYards for bulk delivery or exact bag counts, waste included.Paint CalculatorGallons for walls and ceiling with openings subtracted.Flooring CalculatorBoxes to buy with the right waste for your layout.Fence CalculatorPosts, panels, pickets, rails, and concrete bags from one length.Gravel CalculatorYards and tons for driveways, paths, and base layers.Topsoil CalculatorYards, tons, and bags for beds, leveling, and topdressing.Grass Seed CalculatorPounds of seed by grass type for new lawns or overseeding.Sod CalculatorRolls and pallets with cutting waste, plus the weight reality check.Deck Board CalculatorBoard counts by length with gaps, plus the screw bill.Tile CalculatorTiles, boxes, and thinset bags with the right waste factor.Wallpaper CalculatorRolls with pattern-repeat waste and dye-lot strategy.Baseboard & Trim CalculatorLinear feet and stick counts with door openings out.Square Footage CalculatorAdd rectangles, triangles and circles into one total, every unit.Paver CalculatorPavers, gravel base, and sand — the full three-layer order.Firewood Cord CalculatorCheck a stack — or a delivery — against a real cord.

The one-trip rule

Every home project has the same hidden tax: the second trip. The bag of mulch you're short, the extra gallon of paint in a slightly different batch, the box of flooring the store no longer stocks. These calculators exist to kill the second trip — they convert your measurements into what the shelf actually sells, with a sensible waste allowance built in.

Everything runs in your browser. No account, no saved data, no email gate — measure, type, buy.

Estimates with the assumptions shown

Every tool states its coverage rates and rules of thumb right on the page — 350 square feet per gallon of paint, 1.4 tons per cubic yard of gravel, ten percent waste on flooring. If your product's label says different, trust the label: it knows the product, we know the math.