Construction Toolkit

All 15 calculators free, offline, no accounts, no ads. Concrete, rebar, steel, units & cost estimates. Pro only unlocks saved projects + branded PDF/Excel export.

Construction Calculator is an offline construction calculator for people who build things: concrete calculator, rebar calculator, brick, tile, steel, scaffold and pipe volume - with a material estimator and cost estimator that work with no signal.

No account. No signal. The app works anywhere - a job site, a basement, a rooftop - and it never sells your data because it never needs the network.

WHAT YOU CAN DO

• Concrete calculator: slabs, footings, columns and walls - bags, volume, cost.
• Rebar calculator: footings, beams and ties - steel weight and volume in one tap.
• Brick, tile, beam, column, roofing, scaffold, excavation, asphalt and pipe volume calculators.
• Unit converter: metric and imperial, plus construction units. Use this unit converter offline on the job.
• The material estimator and cost estimator build as you work.
• Save projects and reopen them anytime.
• Export a clean, print-ready PDF or structured Excel file.

MADE FOR THE FIELD

• This construction calculator works offline on site - even with no signal.
• Big numbers and large buttons, readable in daylight and on the move.
• Smart defaults and quick presets to cut your typing.
• Dark mode for evening planning.
• Every result can be copied or shared in one tap.

FREE, WITH A PRO OPTION

• All calculators are fully free. No paywall in the middle of a calculation.
• Pro removes the limits on saved projects, unlocks branded PDF export and full-project Excel export, and restores your purchases on any device.
• No ads in pro version.

Questions or feedback? We read every review.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/