HandymanCalc is a free collection of material-estimate calculators built for tradespeople and DIYers. Whether you're a professional contractor pricing a job or a homeowner planning a weekend project, the tools here give you accurate quantity estimates in seconds — no account, no subscription, no nonsense.

Every calculator uses industry-standard formulas and includes waste factors that reflect real job-site conditions. All calculations run entirely in your browser, so they work offline on a phone in the middle of a job site with no signal.

The site covers the most common trade calculations: how much paint for a room, how many tiles for a bathroom, how many cubic yards of concrete for a slab, how many roofing squares for a house, fence posts and pickets for a property line, flooring for a living room, drywall for a renovation, mulch for a landscape bed, studs for a partition wall, and deck boards for an outdoor project.

All 10 calculators support both US imperial (feet, gallons, cubic yards) and metric (metres, litres, cubic metres) via the toggle in the navigation. Results are designed for quick field use — the estimate slip format is intentionally easy to read at a glance and print.