Paint Calculator vs Construction Tools

How much paint do you need? Enter the room and get gallons for the job — not a guess. Paint Calculator estimates finish paint and primer from the room, openings, and the coverage on the can. Buy amounts are rounded up to whole gallons. • Length, width, and height in feet and inches • Paint walls, ceiling, or both • Subtracts 21 sq ft per door and 15 sq ft per window • Optional moulding from perimeter × width • Finish and primer coats, with coverage you can match to the label • Square-foot breakdown so you can see the math • Typical finish coverage 350 sq ft/gal; primer 250 — check the can and adjust Estimating tool only. Coverage depends on the paint, surface texture, and color change. Two finish coats is the usual job; set primer coats to 0 if you are not priming.

Construction Tools is a practical calculator app for contractors, builders, estimators, tradespeople, and DIY projects. Open a tool, enter your dimensions, and get clear material quantities, measurements, and cost estimates without digging through formulas or spreadsheets. The app includes more than 100 calculators and estimators for: - concrete, block, brick, mortar, and rebar - roofing, shingles, gutters, and siding - decks, fences, stairs, framing, and lumber - drywall, paint, insulation, and wallpaper - tile, flooring, grout, carpet, and epoxy - asphalt, pavers, gravel, soil, mulch, and landscaping - material quantities, waste, weight, and project cost - area, volume, scale, slope, and unit conversion Construction Tools is designed for everyday work: - fast, clean inputs - clear results - imperial and metric units - practical waste allowances - optional material prices - copy and share tools - search and favorites for quick access - calculations that work offline Use it for quick jobsite checks, material planning, takeoffs, and early cost estimates. Results are planning estimates, so always confirm product coverage, supplier specifications, and local building requirements before ordering.