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Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.
Concrete volume, bags & cost. 5 shapes, PDF export, dark mode. Offline.
CONCRETE CALCULATOR — VOLUME, BAGS & COST Estimate concrete volume, bag count (60/80/90 lb), and project cost fast. Built for concrete contractors, general contractors, masons, builders, DIY homeowners, and construction supply stores. 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 — no internet required ✓ Bilingual: English and Spanish (Espanol) ✓ 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 radius2 x thickness - Footing: length x width x depth - Column: pi x radius2 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 • Dark theme • Ad-free experience PRIVACY & DATA • No account required • No personal data collection • Works completely offline • All calculations stored locally on your device • Privacy policy: https://tradetools.dev/building/privacy-policy.html SUPPORT Questions or feedback? Email: support@tradetools.dev Website: https://tradetools.dev/building/concrete-calculator/