About this app
Know exactly how many bags of concrete to buy - for slabs, footings, columns, and stairs. Takes your project dimensions and gives cubic yards (or meters), bags needed, and includes a 10% waste factor. KEY FEATURES: * 4 Shape Types - Slab, footing, column, and stairs * Bag Calculator - 40, 60, or 80 lb (or 20, 25, 40 kg metric) * Built-in Waste Factor - Automatic 10% waste * Imperial & Metric - Feet/inches and meters/centimeters * Cubic Yards & Meters - Volume in your preferred unit Free to download. No sign-up. No paywall. Works offline. By Blas Apps - simple calculators that do one thing perfectly.
Latest release
What’s New
Improved App Store listing.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 7, 2026 · 7:37 PM Free
Screenshots
