Renovation Calculators

Renovation Calculators puts 35 job specific estimators in one offline app. Work out how much material a project needs and what it should cost before you buy anything, whether you are a homeowner planning the work or a contractor pricing it in the driveway. Everything runs on the device. No account, no sign in, no connection needed, so the app works the same in a basement, an attic, or a job site with no signal. WHAT IS INCLUDED Flooring: carpet, laminate, hardwood, general flooring, and a carpet quote checker. Turns room dimensions into square footage, waste allowance, and material cost. Kitchen: full remodel cost, cabinets, countertops, cabinet painting, and cabinet refacing. Roofing: materials and squares, roof pitch, plywood sheathing, tile, metal roofing, and nail counts. HVAC: heating and cooling load, heat loss, duct sizing, and installed system cost. Bathroom: remodel cost, exhaust fan sizing to the ASHRAE 62.2 ventilation standard, and mirror sizing. Plumbing and water heating: tankless sizing, tank capacity, and a water heater life estimator that weighs install year, type, water hardness, and maintenance history to flag replacement urgency. Electrical: whole home wattage and electrical load, plus standby generator sizing. Insulation: R value targets by climate zone with material and cost by type, and a savings calculator that returns payback period, net present value, and lifetime CO2 avoided. Structural and concrete: lumber cost, brick counts, and concrete slab volume. Home theater: golden ratio room dimensions, THX and SMPTE viewing distance, acoustic treatment, and budget by equipment tier. HOW IT WORKS Pick a calculator, enter your numbers, and get a materials list with a cost breakdown. Entries are remembered per calculator, so reopening one picks up where you left off. Save an estimate to come back to it, which makes it easy to compare two materials for the same room, and delete saved estimates when the job is done. WHERE THE NUMBERS COME FROM The math is the same engine that runs the calculators on renovationcalculators.com, and it is tested against those results so a number here matches a number there. Cost estimates use United States national average material and labor prices for the 2025 and 2026 season. Each calculator states the assumptions behind its result, such as paint coverage of 350 square feet per gallon on smooth drywall for the first coat, so you can see how the figure was reached and adjust it for local pricing. These are planning estimates, not bids. Local prices, site conditions, and code requirements vary. Use them to set a budget, to sanity check a quote you have been given, and to know roughly how much material to order. PRIVACY The app collects nothing. No accounts, no analytics, no ads, no tracking. Whatever you enter stays on your phone.