Home Repair Calculators & Tools
Free, practical tools for everyday fix-it jobs — estimate paint, size a drywall patch, count tile, measure out caulk, pick a wall anchor, and plan how long a project will actually take.
Paint Coverage Calculator
Work out how much paint a room needs from its dimensions, doors, windows, and number of coats — net paintable area, exact gallons, and gallons to buy.
Drywall Patch Size Guide
Enter a hole's diameter and get the matching repair method, from a spackle dab to a stud-to-stud replacement, plus patch size and joint compound needed.
Tile Count Calculator
Get the tile — and box — count for a floor or wall from the room and tile dimensions, with a waste allowance for cuts and breakage built in.
Caulk Amount Estimator
Find out how many standard cartridges a job needs from the total bead length and bead width, using the same math behind manufacturer coverage charts.
Wall Anchor Selector
Pick an anchor type from your wall material and the weight it needs to hold — drywall, plaster, masonry, or metal stud, split across multiple mounting points.
DIY Project Time Estimator
Estimate how many hours a project will take from the task, job size, and your DIY experience level — painting, patching, tiling, shelving, caulking, and doors.