Pick a tool, type your dimensions, get yards/bags/cost — with a diagram, formula, and citations.
Calculate cubic yards, cubic meters, and the number of 40, 60, and 80-lb concrete bags for slabs, footings, columns, and stairs. Optional price input gives a full project cost.
Calculate cubic yards and tons of gravel for driveways, patios, and drainage. Supports pea, crushed stone, and #57 — each with the correct density.
Calculate cubic yards and bags of mulch for garden beds. Defaults to 3-inch depth and 2-cubic-foot bags — the most common retail size.
Calculate drywall sheets, screws, joint tape, and joint compound for a room. Subtract windows and doors for accurate totals.
Calculate tiles, boxes, and cost for floors, walls, backsplashes. Configurable tile size, box quantity, and waste percentage.
Calculate deck boards, joists, and posts for any rectangular deck. Configurable board width, gap, and joist spacing.
Calculate gallons of paint and primer for any project. Defaults to 350 ft²/gallon coverage and 2 coats — adjust for textured surfaces.
Calculate posts, rails, and pickets for any linear fence. Defaults to 8-ft post spacing and a standard 6-ft privacy fence.
Calculate board feet, linear feet, and cost for any lumber order. Useful for framing, decking, trim, and pricing across suppliers.
Calculate planks, boxes, and cost for laminate, hardwood, or vinyl plank flooring. Configurable plank size and waste percentage.
Calculate squares, shingle bundles, and underlayment for pitched roofs. Includes pitch correction for accurate area.