Concrete Calc Build

CONCRETE CALCULATOR — VOLUME, BAGS & COST Estimate concrete volume, bag count (60/80/90 lb), and project cost in seconds. Built for concrete contractors, general contractors, masons, builders, DIY homeowners, and construction supply stores. Works 100% offline on the job site. 5 SHAPE TYPES: - Rectangular Slab — driveways, patios, garage floors, sidewalks - Circular Slab — round patios, fire pit pads, fountain bases - Footing — foundation footings, porch footings, deck footings - Column / Post — round columns, porch posts, piers, pillars - Wall — retaining walls, foundation walls, poured walls ACCURATE CALCULATIONS: - Volume in cubic yards and cubic feet - Bag estimates: 60 lb (0.017 yd3), 80 lb (0.022 yd3), 90 lb (0.025 yd3) - Cost estimate based on price per cubic yard (default $150/yd3) - Material mix breakdown: cement, sand, gravel (1:2:3 ratio) — in-app purchase - Instant results — enter dimensions and tap Calculate SAVE & EXPORT: - Save calculation history (in-app purchase) - Load saved calculations to recalculate with new dimensions - Export detailed PDF reports (in-app purchase) - Share estimates with clients and suppliers DESIGN & USABILITY: - Material Design 3 interface - Dark theme support (in-app purchase) - Works completely offline - Bilingual: English and Spanish - Input in feet and inches — US construction standard TARGET AUDIENCE: Professional concrete contractors, general contractors, masons, builders, DIY homeowners, and building supply stores who need quick, reliable volume estimates on the job site or in the store. CALCULATION METHOD: Volume formulas for each shape: - Slab: length x width x thickness - Circular: pi x radius squared x thickness - Footing: length x width x depth - Column: pi x radius squared x height - Wall: length x height x thickness All volumes converted to cubic yards (divide by 27). Bag count = volume / bag yield. OPTIONAL PRO UPGRADE — $2.99 ONE-TIME IN-APP PURCHASE: The following features require a separate one-time in-app purchase. They are not required to use the calculator: - Unlimited saved calculation history - PDF export of results - Material mix breakdown (cement / sand / gravel) - Dark theme - Ad-free experience PRIVACY & DATA: - No account required - No personal data collection - Works completely offline - All calculations stored locally on your device PERFECT FOR: - Concrete contractors and crews - General contractors and home builders - Masons and finishers - DIY homeowners - Building material suppliers - Estimators and quoters Simplify concrete volume estimation on the job site.