Concrete & Gravel Calc

Concrete & Gravel Calc is a fast, practical construction calculator for contractors, builders and DIYers who need quick, reliable material estimates without spreadsheets or guesswork. The app calculates volumes and weights for common concrete and gravel jobs — slabs, footings, columns, walls, circular pads, driveways and trenches — and converts between Imperial and Metric units. With an adjustable waste factor, bag counts and density presets, Concrete & Gravel Calc helps you produce material lists, cost estimates and bag counts on-site or offline so you can plan purchases and avoid surprises when ordering supplies.

Key Features

⭐ Concrete & Gravel Calc offers concrete and gravel calculators for slabs, footings, columns, walls, circular pads, driveways and trenches.

⭐ Toggle between Imperial and Metric units and apply an adjustable waste factor from 0–25%.

⭐ Built-in bag calculator for 40, 60 and 80 lb bags plus gravel weight presets for crusher run, pea gravel, river rock and more.

⭐ Cost estimates with custom price per yard, ton or bag and clear material totals for budgeting.

⭐ Save and label calculations (free users: up to 20 saves; Pro users: unlimited) and copy results to the clipboard.

⭐ Clean, modern interface designed for job site use and fully functional offline.

Advantages

✅ Fast, accurate material estimates that reduce waste and save time during project planning and ordering.

✅ Flexible unit support and adjustable waste factors make the app adaptable to different regional standards and site conditions.

✅ Bag counts, density presets and cost tools help produce reliable purchase lists and on-site budgets.

✅ Pro upgrade ($2.99 one-time) removes ads, unlocks unlimited saved calculations and enables sharing results via text or email.

Disadvantages

❎ Estimates are intended for planning purposes only — always verify quantities with your material supplier because actual amounts can vary by site conditions and material density.

❎ Free version limits saved calculations to 20 and displays ads; advanced sharing and unlimited saves require the Pro upgrade.