Professional DIY Calculators
Free & Accurate
Get precise material estimates and measurements for your home improvement projects. Used by DIYers and professionals alike.
Most Popular Calculators
Start with our most-used tools for home improvement projects
Laminate Underlayment Calculator
flooringCalculate rolls of underlayment needed for laminate flooring installation
Primer Coverage Calculator
paintingCalculate primer needed based on surface type and area
Joint Compound Calculator
drywallCalculate joint compound needed by coat type
Grout Calculator
tilingCalculate grout needed based on tile size, joint width, and thickness
Crown Molding Angle Calculator
carpentryCalculate miter and bevel angles for crown molding
Concrete Footing Size Calculator
carpentryCalculate footing dimensions for posts and columns
Calculator Categories
Flooring
Laminate, tile, vinyl, and hardwood flooring calculations
7 calculators
Painting
Paint, primer, stain coverage and recommendations
5 calculators
Drywall
Drywall sheets, compound, screws, and finishing
4 calculators
Tiling
Tile, grout, thinset, and shower installations
5 calculators
Carpentry & Outdoor
Woodworking, stairs, decks, and concrete projects
6 calculators
Why Use DIYCalc?
Always Free
All calculators are completely free to use. No subscriptions, no hidden fees.
Industry Accurate
Built using professional standards and building codes. Trusted by contractors.
Mobile Friendly
Use on any device at the job site or planning at home. Responsive design.
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