Home Improvement Calculators
Free, practical tools for homeowners and DIYers — estimate paint and wallpaper for a room, size heating and cooling, price what an appliance costs to run, plan a move, build a cleaning routine, and measure a space.
Wallpaper Calculator
Work out how many rolls of wallpaper a room needs from its dimensions and your roll size — accounting for wall height, doors and windows, pattern repeat, and waste
Paint Calculator
Estimate the gallons (and liters) of paint for a room from wall area and number of coats, minus doors and windows, using a standard coverage per gallon
Moving Checklist
Generate a week-by-week moving checklist tailored to your timeline and home size, with extra tasks added when you're moving with pets or kids
Energy Cost Calculator
Find what an appliance or device costs to run — enter its wattage, hours per day, and your electricity rate for the daily, monthly, and yearly cost
Cleaning Schedule
Build a home cleaning routine — daily, weekly, monthly, and seasonal tasks scaled to your bedrooms and bathrooms, with extra jobs for pets and kids
BTU Calculator
Size heating and cooling for a room from its area, ceiling height, climate, sun exposure, and occupants — with the BTUs and a recommended unit size
Room Size Calculator
Find a room's floor area, wall area, and volume from length, width, and ceiling height — plus the flooring boxes and paint gallons you'll need to buy
Mortgage Calculator
Estimate your full monthly payment from home price, down payment, rate, and term — principal and interest plus property tax and insurance, with total interest and total of payments