Plan, maintain and fix your home

Free calculators and plain-English guides for home projects, repairs and upkeep. Buy the right amount, budget realistically, and know when it’s time to call a pro.

Freecalculators, no sign-up

Math shownon every tool

Sources citedmanufacturers & .gov

Phone-readyuse it in the store aisle

Home project calculators

Enter your measurements and get quantities in seconds, with the formula and assumptions shown below every result.

🧱ConcreteBags and cubic yards for slabs, patios and post holes 🎨PaintGallons for walls, ceilings and primer 📐Square footageRooms, L-shapes, triangles and circles 🌱MulchCubic yards and bags for garden beds 🪨GravelTons and yards for paths, patios and driveways

What we cover

💲

Costs & planningRealistic price ranges and how much material to buy

❄️

Heating & coolingSizing air conditioners, mini splits and dehumidifiers

🔧

Repairs & troubleshootingStep-by-step fixes for everyday problems

🧽

Cleaning & maintenanceSeasonal upkeep that keeps small problems small

🌿

Yard & outdoorGarden beds, paths, driveways and fences

🏠

Safe & accessible homeUpgrades that make a home easier to live in

Safe and accessible home

🏠Room-by-room safety guideThe complete checklist of home modifications 🛁Bathroom upgradesGrab bars, showers and toilets 🪜Stair safetyRails, lighting and treads 🍳Easier kitchenReach zones, layout and tools

How we make our guides

The math is shownEvery calculator explains its formula and assumptions, like bag yields or paint coverage.

Checked before publishingEach tool is tested against worked examples calculated by hand.

Sources you can verifyManufacturer data, government agencies and university extension guides.

Honest about limitsEstimates are not quotes. For electrical, gas or structural work, call a licensed pro.