Home Project Calculators
Plan your next project with simple calculators for materials, quantities, waste and estimated costs. Choose a calculator below to get started.
Choose Your Calculator
Pick the material or project type you are working with. Each tool gives you a focused estimate for planning and purchasing.
Paint Calculator
Estimate paint for walls and ceilings in US or metric units. Enter room dimensions, coats, doors, windows and coverage to calculate gallons or liters.
Tile Calculator
Calculate how many tiles and boxes you need in US or metric units. Enter project size, tile dimensions and waste allowance for floors, walls and more.
Flooring Calculator
Calculate flooring area, waste, boxes and material cost in US or metric units. Enter room size, package coverage, price and your preferred currency.
Concrete Calculator
Calculate concrete volume, bag quantities and material cost in US or metric units. Enter slab dimensions, waste, bag yield, price and currency.
Drywall Calculator
Estimate how many drywall sheets you need for walls and ceilings. Enter room dimensions, openings, panel size and waste using US or metric units.
Grout Calculator
Use our free grout calculator to estimate grout for floor and wall tiles. Enter tile size, joint width, depth and area to calculate coverage, bags and cost.
Paver Calculator
Calculate how many pavers you need for a patio or walkway. Estimate pavers per square foot, add waste, calculate pallets and check optional material cost.
Wallpaper Calculator
Estimate how many wallpaper rolls you need using room size, wall height, roll dimensions, pattern repeat and waste, with optional material cost.
Gravel Calculator
Estimate how much gravel you need using project length, width, depth and waste allowance, with optional gravel weight and material cost.
Mulch Calculator
Calculate mulch for garden beds and tree rings. Estimate cubic yards, bags, coverage and costs in US or metric units with waste and top-up options.
More Calculators Coming Soon
We’re expanding HomeBuild Metrics with more practical tools for roofing, decking, landscaping, room measurements and other common home projects.
Not sure which calculator to use?
Choose the calculator that matches the material you are buying. Paint covers walls and ceilings, tile and flooring tools calculate surface coverage and package quantities, while the concrete calculator estimates project volume and bags.