ConcreteCalc: Estimator & Calc

The professional concrete and masonry calculator trusted by contractors, estimators, and builders. Get instant volume calculations, bag counts, cost estimates, and materials lists — right from the job site. Start free with the Slab calculator. Upgrade to unlock all 8 professional tools. WHAT YOU CAN CALCULATE Slab (Free) — Patios, driveways, walkways, and garage floors. Enter length, width, and thickness to get cubic yards, bag counts, and cost. Round Slab — Fire pits, circular patios, and round pads. Enter diameter and thickness for instant results. Footing — Continuous wall footings, square column footings, and round pier footings. Supports multiple footing counts per job. Column — Sonotube and round column pours. Select from standard tube diameters (6–36 in) with per-column and total volume. Wall — Poured concrete walls with built-in formwork calculator. Get plywood sheets, 2x4 studs, walers, and snap tie counts alongside your concrete volume. Stairs — Steps with IRC R311.7 code compliance checking. Validates riser height, tread depth, and total rise against residential building code. Rebar — Grid layout calculator with bar sizing (#3–#8), spacing, splice lengths, stock bar counts, total weight, and cost per ACI 318 and ASTM A615. Block/CMU — Block count, half blocks, mortar bags, and full cost breakdown. Subtract door and window openings. Covers 4" through 12" CMU sizes per NCMA TEK standards. EVERY CALCULATOR INCLUDES - Volume in cubic yards or cubic meters - Bag count estimates (80, 60, and 40 lb bags) - Ready-mix cost with customizable pricing - Truck load calculations - Adjustable waste factor (0–25%) - Building code references PROFESSIONAL PDF ESTIMATES Generate multi-page branded PDF estimates on site. Add your company logo, name, address, phone, and license number. Each estimate includes a signature line, job site photo page, auto-numbered estimate IDs, and code reference citations. Share via email, AirDrop, or any app. BUILT FOR THE JOB SITE - Imperial and Metric units with smart conversion - Save jobs with names, site addresses, and photos - Full calculation history - Materials summary across multiple jobs - 3D isometric shape previews - Dark and Light themes - Haptic feedback - Siri Shortcuts for quick calculations - Works 100% offline — no account required YOUR DATA STAYS ON YOUR DEVICE No sign-up. No cloud. No tracking. All calculations and saved jobs are stored locally on your device. ——— Subscription Details: • Pro Monthly — auto-renewing, billed monthly • Pro Yearly — auto-renewing, billed yearly • Pro Lifetime — one-time purchase, no renewal Privacy Policy: https://elly2504.github.io/tradecalcsuite/privacy Terms of Use (EULA): https://elly2504.github.io/tradecalcsuite/terms