Tools & calculators
Every tool here computes something real — quantities, materials, and costs you can take straight to the store. No accounts, no fake AI, and everything runs instantly on your device.
Estimators & planners
Second-generation estimators: they return a plan, a materials list, and a printable scope — not just a number.
EstimatorPatio Paver CalculatorPavers, base tons, bedding sand and the dig depth — not just a paver count.About 3 min · Free · No signupEstimatorMosquito Control Cost ComparisonFive approaches, one season, side by side — from someone not selling you one.About 2 min · Free · No signupEstimatorInterior Painting Cost EstimatorWhat a painter would quote, and what the same job costs you in materials.About 2 min · Free · No signupEstimatorPergola Cost & Material EstimatorA lumber take-off, not a price range — with the span rules published.About 3 min · Free · No signupEstimatorLandscape Lighting PlannerTransformer sizing and voltage drop — the two calculations nobody does.About 3 min · Free · No signupEstimatorDIY vs Contractor Savings CalculatorDeliberately unflattering to DIY where DIY doesn't deserve it.About 2 min · Free · No signupEstimatorTankless vs Tank Water Heater: Total Cost of OwnershipThe break-even year, for your house — not a generic pros-and-cons list.About 4 min · Free · No signupEstimatorWater Heater Sizing SelectorFirst-hour rating, not gallons. And the winter derate nobody mentions.About 3 min · Free · No signupEstimatorWasher Capacity PlannerA capacity for your household, and whether it physically fits.About 3 min · Free · No signupEstimatorGenerator Sizing CalculatorRunning watts plus the largest surge — not the sum of every surge.About 3 min · Free · No signupEstimatorHVAC Filter Size & Replacement PlannerAn interval for your house, with every multiplier shown.About 2 min · Free · No signupEstimatorDeck Board & Material CalculatorNot area ÷ board area. A cut plan that minimises joints.About 3 min · Free · No signupEstimatorDeck Framing: Joist, Beam, Post & Footing PlannerPrescriptive span tables, applied to your deck.About 3 min · Free · No signupEstimatorDeck Build Cost EstimatorEvery line itemised and editable, not a national range per square foot.About 4 min · Free · No signupEstimatorComposite vs Wood Decking: Total Cost of OwnershipWood's economics depend on refinishing actually happening. This asks honestly.About 4 min · Free · No signupEstimatorShelf Span & Load CalculatorSag is the limit, not strength. This calculates the sag.About 2 min · Free · No signupEstimatorLawn Watering Schedule CalculatorBuilt from your catch-can measurements, not from a ZIP code.About 4 min · Free · No signupEstimatorSod Quantity & Cost CalculatorPallets and cost, plus the first fortnight that actually decides it.About 3 min · Free · No signupEstimatorAppliance Running Cost CalculatorWhole house, one rate — so you know which appliance to change first.About 3 min · Free · No signupEstimatorAttic Insulation & Payback CalculatorAir seal first. Then the R-value, depth, bags and honest payback.About 3 min · Free · No signupEstimatorCountertop Material Comparison ToolScored for your kitchen, with all the weights shown.About 3 min · Free · No signupEstimatorGutter & Downspout Sizing CalculatorPitch-adjusted roof area against your real rainfall intensity.About 3 min · Free · No signup
All calculators
Measure once, buy once.
CalculatorPaint CalculatorHow much paint do you actually need?Free · No signup · InstantCalculatorMulch CalculatorCubic yards, bags, and the cheaper way to buy.Free · No signup · InstantCalculatorFlooring EstimatorSquare footage, waste factor, boxes, and cost — solved.Free · No signup · InstantCalculatorFence CalculatorEvery post, picket, rail, and bag of concrete — counted.Free · No signup · InstantCalculatorBudget BuilderKnow the real number before you start.Free · No signup · InstantCalculatorWallpaper CalculatorHow many rolls — with pattern-repeat waste counted in.Free · No signup · InstantCalculatorDeck Stain CalculatorGallons of stain, railings included — coverage done right.Free · No signup · InstantCalculatorGrass Seed CalculatorPounds of seed, matched to your grass and your job.Free · No signup · InstantCalculatorRaised Bed Soil CalculatorVolume, bags, and the fill mix that actually grows things.Free · No signup · InstantCalculatorConcrete CalculatorBags or ready-mix, cubic yards, and waste — counted.Free · No signup · InstantCalculatorGravel CalculatorVolume to tons — the conversion gravel suppliers make you do.Free · No signup · InstantCalculatorTile CalculatorTiles, boxes, and thinset — with the right waste for your layout.Free · No signup · InstantCalculatorDrywall CalculatorSheets, mud, screws, and tape — the whole hang list.Free · No signup · InstantCalculatorBaseboard & Trim CalculatorLinear feet, pieces, and cost — doorways subtracted.Free · No signup · InstantCalculatorAir Conditioner Size CalculatorThe right BTU — because oversized AC cools clammy, not comfortable.Free · No signup · InstantCalculatorExterior Paint CalculatorBody and trim gallons, sized for your siding.Free · No signup · InstantCalculatorBathroom Remodel Cost EstimatorAn itemized estimate you can see through — not a mystery number.Free · No signup · InstantCalculatorKitchen Remodel Cost EstimatorSee where every dollar goes — cabinets and all.Free · No signup · Instant