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
Shower Niche Size Calculator
tilingCalculate ideal shower niche dimensions to avoid tile cuts
Wood Movement Calculator
carpentryCalculate wood expansion and contraction with humidity changes
Laminate Underlayment Calculator
flooringCalculate rolls of underlayment needed for laminate flooring installation
Grout Calculator
tilingCalculate grout needed based on tile size, joint width, and thickness
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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