Pick a calculator. Each one gives you quantities, a cost estimate and a live chart, plus a plain-English guide underneath explaining how the numbers work.
Inside the home
Paint calculatorGallons for any room, minus doors and windows, with cost by paint grade.Walls and ceilingsDrywall calculatorSheets, screws, tape and mud for any room, plus DIY vs. pro cost.Walls and ceilingsFlooring calculatorSquare feet, boxes and installed cost for vinyl, laminate, wood, tile and carpet.6 flooring typesTile calculatorTiles, boxes and thinset for floors and walls, by tile size.Bathrooms and kitchensSquare footage calculatorAdd up rooms in square feet, square yards and square meters.Rooms and whole homes
Outdoor and yard projects
Roofing calculatorRoof area from your house size and pitch, squares, bundles and cost.Shingles and metalConcrete calculatorCubic yards and bags for slabs and patios, plus bags vs. ready-mix cost.Slabs, patios, padsFence calculatorPosts, sections, concrete and installed cost for 5 fence types.Wood, vinyl, chain linkDeck calculatorDeck boards, joists, railing and cost: wood vs. composite.Wood and compositePaver calculatorPavers, base gravel, sand and edging for a patio or walkway.Patios and pathsMulch, gravel and topsoil calculatorCubic yards and bags for garden beds, plus bags vs. bulk delivery.Garden beds and paths
Cars and driving
Auto loan calculatorMonthly payment, total interest and how loan length changes what you pay.New and used carsCar affordability calculatorHow much car you can afford from your income, rate and loan length.Budget firstLease vs. buy calculatorCompare the real cost of leasing and buying over the same years.Leasing decisionsGas cost calculatorFuel cost for any road trip, split between riders, compared with other vehicles.Road trips and commutesEV vs. gas savings calculatorYearly fuel savings of an electric car and how long the payback takes.Electric vs. gas