All paint and drywall calculators
Every calculator on the site, grouped by job. Each one works in US or metric units and shows the formula behind the result.
Interior paint
- Room Paint CalculatorGallons of wall paint for a room, with doors and windows taken off and the number of coats.
- Ceiling Paint CalculatorGallons of ceiling paint for any room, smooth or textured, for one or two coats.
- Wall & Accent Wall Paint CalculatorPaint for one wall, an accent wall or a few walls of the same size, in quarts, gallons or litres.
- Paint Coverage Calculator (Gallons to Square Feet)How many square feet a quart, gallon or 5-gallon pail of paint covers, for one or more coats.
- Primer CalculatorGallons of primer for new drywall, patched or stained walls, bare wood or masonry.
- Trim & Baseboard Paint CalculatorQuarts or gallons of trim paint for baseboards, door and window casings, jambs and crown molding.
- Door Paint CalculatorPaint for interior doors, a front door or a garage door: one or both sides, edges included.
- Kitchen Cabinet Paint CalculatorQuarts or gallons of enamel and primer for kitchen or bathroom cabinets: doors, drawer fronts, frames and end panels.
- Paint Cost CalculatorWhat the paint, primer and supplies for a room cost at your store’s prices, if you do it yourself.
Exterior, deck & fence
- Exterior House Paint CalculatorGallons of exterior paint for a house from its size or its square footage, with siding type, gables, doors and windows.
- Deck Paint & Stain CalculatorGallons of deck paint or stain for the floor, railings and steps of a deck.
- Fence Paint & Stain CalculatorGallons or litres of fence paint or stain for privacy, picket and panel fences, one side or both.
Painting supplies
- Spray Paint Calculator (How Many Cans?)How many cans of spray paint for a chair, dresser, door or any object, from its parts and the coverage on the can.
- Painter’s Tape CalculatorHow many rolls of painter’s tape to mask a room: ceiling line, baseboards, door and window trim.
- Caulk Calculator (Tubes and Feet per Tube)How many tubes of caulk for a joint, and how many feet one tube runs at your bead size.
Wallpaper
Drywall
- Drywall Calculator (Sheets for a Room)Sheets of drywall for a room’s walls and ceiling, in 4×8, 4×12 or metric sizes, with large openings taken off.
- Joint Compound (Drywall Mud) CalculatorGallons, pails and cartons of drywall mud for a number of sheets or an area, from USG’s published estimate.
- Drywall Weight CalculatorWhat a sheet, a bundle or a load of drywall weighs, by thickness and type, from manufacturers’ published weights.
- Drywall Screw Calculator (Screws per Sheet)How many drywall screws per 4×8 or 4×12 sheet on walls and ceilings, the total for a job, and pounds to buy.
- Drywall Tape CalculatorFeet of paper joint tape and rolls to buy for a number of sheets or an area of drywall.
- Corner Bead CalculatorPieces of drywall corner bead for outside corners, window and door returns, in 8, 9 or 10 ft lengths.
- Skim Coat CalculatorGallons of joint compound to skim coat walls or ceilings, by thickness and number of coats.
- Popcorn Ceiling Texture CalculatorBags of spray-on popcorn (acoustic) ceiling texture for a ceiling, from USG’s published coverage per pound.
- Drywall Cost Calculator (Materials)Material cost to drywall a room yourself: sheets, joint compound, tape and screws at your prices.