Home Improvement
Project estimation calculators with industry-typical coverage values you can adjust to your materials.
Tile Calculator
Calculate how many tiles you need for a floor or wall from area, tile size and waste percentage. Includes standard 10% waste allowance.
Flooring Calculator
Calculate how many flooring packs you need and the total cost from room area, pack coverage, waste allowance and price per pack.
Carpet Calculator
Estimate how much carpet to buy from a roll to cover a room, accounting for roll width and strip cutting.
Epoxy Flooring Calculator
Estimate epoxy floor coating volume needed from area, thickness, and number of coats, with a 10% mixing allowance.
Shiplap Calculator
Estimate how many shiplap boards you need from wall area, exposed board width, board length, and waste allowance.
Wall Paneling Calculator
Estimate how many wall paneling boards you need from wall length, panel width, and a waste allowance for cuts.
Baseboard Calculator
Estimate baseboard from room perimeter and doorways: linear meters with 10% waste, the number of boards at your stock length, and optional cost.
Trim Calculator
Estimate trim pieces for baseboard, crown molding, casing or chair rail from the run length, stock piece length and a waste percentage.
Electricity Cost Calculator
Calculate the daily, monthly and yearly running cost of an appliance from its wattage, hours of use and your electricity rate.
Solar Savings Calculator
Estimate annual solar savings, energy generation and payback period from system size, peak sun hours, system losses and electricity rate.
kWh Calculator
Calculate energy use in kilowatt-hours (kWh) and the resulting cost from an appliance's wattage, hours of use and electricity rate.