Project material calculators
Measure your space. Get a shopping list.
Estimate paint, flooring, tile, concrete, and more. Enter your measurements, adjust the product coverage and waste allowance, then see how many cans, boxes, bags, or rolls to buy.
How much paint?
Choose what you are working on.
Calculate surface area or material quantity. Material tools also round the estimate to the package sizes you select.
Paint & coatings
Interior paint calculator
Estimate wall and ceiling paint with door, window, coat, and coverage adjustments.
Open calculator ->Wall area calculator
Measure total paintable wall area without drawing a floor plan.
Open calculator ->Primer calculator
Plan primer separately for new drywall, repairs, and color changes.
Open calculator ->Ceiling paint calculator
Estimate flat or textured ceiling paint, extra allowance, and cost.
Open calculator ->Exterior paint calculator
Plan siding paint by house footprint, height, openings, and surface coverage.
Open calculator ->Spray paint calculator
Estimate aerosol cans from item count, dimensions, exposed faces, coats, can coverage, waste and price.
Open calculator ->Brick, masonry & stucco paint calculator
Plan primer and paint separately for porous masonry surfaces.
Open calculator ->Fence paint and stain calculator
Estimate paint or stain for fence panels, gaps, gates, coats, coverage and cost.
Open calculator ->Deck stain calculator
Estimate deck stain for boards, railings, stairs, coats, coverage, waste and cost.
Open calculator ->Epoxy floor cost calculator
Estimate primer, epoxy base and topcoat kits plus material and labor cost from floor area and product coverage.
Open calculator ->Floors & finishes
Tile calculator
Estimate tile count, full boxes, cutting waste, and cost from area, tile size, and grout width.
Open calculator ->Flooring calculator
Estimate laminate, vinyl, or hardwood cartons, cutting waste, leftover coverage, and cost.
Open calculator ->Wallpaper roll calculator
Estimate wallpaper rolls from wall size, roll dimensions, pattern repeat, match type, trimming and spare strips.
Open calculator ->Structure & preparation
Concrete calculator
Estimate ready-mix volume, premixed bags and material cost for slabs, pads and rectangular footings.
Open calculator ->Drywall and joint compound calculator
Estimate drywall sheets and joint compound from room dimensions, openings, ceiling, board size, waste and finishing rate.
Open calculator ->Popcorn ceiling removal cost calculator
Estimate removal, protection, repair, primer, paint, disposal and testing costs from ceiling area and difficulty.
Open calculator ->Caulk and sealant calculator
Estimate cartridges from joint length, width and depth, package volume, waste allowance and price.
Open calculator ->Jump into a common project.
Start with the job, then adjust its measurements and material assumptions.
Paint a room
Plan wall, ceiling, primer, trim, and door paint as separate purchases.
Build a paint shopping list →FLOOR OR WALLTile a space
Estimate tiles, full boxes, cutting waste, thinset, grout, and cost.
Plan a tile order →ROOM FLOORINGInstall flooring
Turn room area, carton coverage, waste, and price into boxes to buy.
Plan flooring boxes →SMALL POURPour a slab
Calculate concrete volume, premixed bags, allowance, and material cost.
Estimate concrete →Browse estimates by room size →See all material calculators →
Measure, adjust, round up.
Enter the measurements
Add the room or surface dimensions, including openings that should be left out.
Check the product label
Use its coverage rate, then set the number of coats, surface condition, and waste allowance.
See what to buy
See the calculated amount under your assumptions, then the whole cans, boxes, bags, or rolls needed at the store.
Measure better before you buy.
How to measure walls, openings, and trim
Measure each wall, subtract doors and windows, then account for closets, slopes, and trim.
Read the guide ->