Handyman Tools: Calculator

Work out concrete, paint, tile, lumber and more in a tap. 60+ calculators, references and unit conversion — offline, no account. Save it all per project.

Handyman Tools is the digital toolbox for tradespeople and DIY builders. Over 60 calculators, reference tables and unit conversion — in one fast app. No account, no signal. Everything runs locally, in a tap.

WORK OUT WHAT YOU BUILD • Concrete — volume, number of 25 kg bags and weight, with waste • Area and room — m², wall area, perimeter and volume • Gravel and sand — m³ and tonnes from area and depth • Brick, block, drywall and roof — count + mortar/screws

MEASURE, WOOD & PAINT • Convert mm, cm, m, inches, feet, m², m³, weight, temp and pressure • Fraction ↔ decimal and metric ↔ imperial • Lumber, board foot, stairs, rafters and roof pitch • Paint and primer — litres from area, coats and coverage • Wallpaper, tile, grout and flooring — count and boxes with waste

PLUMBING & ELECTRICAL • Pipe volume, slope, flow and pressure • Ohm's law, voltage drop, cable size and power use

SMART ON THE JOB • Quick Convert always at hand • Favorites and recent tools on top • Reference: anchors, drill size, cable/fuse, slope, R-value, lumber • Save calculations per project (Garage, Bath, Cabin …)

BUILT FOR THE WORKSITE Big numbers, big buttons and high contrast — readable in sunlight and with gloves. Choose metric or imperial.

PREMIUM Project folders, unlimited storage, PDF export, material reports, custom material libraries and no ads.

All values are guidance only. Always check against current regulations and manufacturer instructions.