Calculators
Construction & DIY calculators
Work out how much material a project needs — in the tons, yards, bags, and boxes suppliers actually sell in. Each calculator lists the sources behind its numbers. More on the way.
Materials
Order the right amount of bulk material by weight and volume.
- Concrete CalculatorCubic yards, bag count by size, ready-mix order, weight, and cost for slabs, footings, and round columns, with element thickness presets.
- Sand CalculatorTons, cubic yards, and bags by sand type, for sandboxes, pavers, and mortar.
- Gravel CalculatorTons, cubic yards, 50 lb bags, truckloads, and cost by stone type, with driveway, walkway, and drainage depth presets.
- Stone CalculatorTons, cubic yards, 50 lb bag count, truckloads, and cost for flagstone, limestone, granite, bluestone, and more.
- Asphalt CalculatorTons, cubic yards, truckloads, coverage, and cost by mix type, with driveway, overlay, and parking-lot thickness presets.
- Concrete Block CalculatorEstimate the number of standard concrete blocks (CMU) and mortar bags required for your project.
- Drywall CalculatorCalculate drywall panels, joint compound (mud), drywall tape, and screws for rooms or custom areas.
- Rebar CalculatorEstimate total rebar footage, bar count, and grid tie intersections for a concrete slab or footing.
Layout & tiling
Count pieces, boxes, and spacing before you buy.
- Tile CalculatorTiles, boxes, and leftover count by area, tile size, grout joint, and layout — with waste that auto-adjusts for straight, diagonal, and herringbone patterns.
- Grout CalculatorGrout volume, weight, and bags by area, tile size, joint width, and joint depth — with density and bag yield you set from your own product.
- Board and Batten CalculatorEven batten spacing for an accent wall — count, exact gap, and the position to mark each batten — plus an exterior siding takeoff with board, batten, and furring counts.
Framing & structure
Work out the geometry and check it against code.
- Stair CalculatorRiser height, tread depth, total run, stringer length, and angle from your total rise — with live 2024 IRC code and comfort checks on every result.
- Stair Stringer CalculatorHow many stringers your stair width needs, the uncut throat left after notching a 2x10 or 2x12, the board length to buy, and the framing-square rise/run marks.
- Roof Pitch CalculatorPitch ratio (X:12), angle in degrees, slope percentage, pitch multiplier (slope factor), and rafter length from your rise and run.
- Rafter Length CalculatorCalculate framing layout dimensions including birdsmouth net run, tail overhang, and ridge thickness deductions.
Landscaping
Cover beds and yards with rock, soil, and mulch by the yard, ton, or bag.
- Mulch CalculatorCubic yards, cubic feet, 2 cu ft bag count, and cost, with bed, tree ring, and refresh depth presets.
- River Rock CalculatorCubic yards, tons, and cost of decorative river rock for rectangular or round beds, with depth guidance.
- Topsoil CalculatorConvert topsoil needs into cubic yards, tons, and standard 40 lb bags for beds, lawns, and fill.
Water & volume
Find the liquid capacity a shape holds, in gallons and liters.
- Pool Volume CalculatorCalculate total water capacity in gallons and liters for rectangular, round, oval, and kidney pools.
- Tank Volume CalculatorCalculate total liquid capacity and partial-fill volume for horizontal or vertical cylindrical tanks.
- Pipe Volume CalculatorCalculate the internal volume of a pipe in gallons and liters from its inside diameter and length.