Construction Calculator Pro AR vs Construction Calculator

Construction Calculator Pro: feet, inches and fractions with no rounding drift, plus stair, rafter, framing, drywall and concrete calculators. One-time unlock, no subscription, no ads. Fully in English and Spanish. For carpenters, framers, concrete finishers, masons, drywallers and remodelers. One app for the numbers, the measuring and the paperwork, built to work with gloves on and zero bars of signal. REPLACES A HANDHELD CONSTRUCTION CALCULATOR — AND DOES MORE If you've used a dedicated feet-inch-fraction construction calculator on site, Construction Calculator Pro does that math and then some. Type "6 ft 9 1/2 in + 2 ft 3/4" and it just works — feet, inches, and fractions, added, subtracted, multiplied, and divided with no rounding drift. A real fraction key, voice entry, one-tap unit conversion, and a full undo tape. No separate device to charge, lose, or leave in the truck — it's the calculator that's already in your pocket. TEN TRADE CALCULATORS, EACH WITH A TO-SCALE DIAGRAM • Stairs — risers, riser height, tread, total run, stringer, stairwell opening • Roof & Rafters — pitch, plumb cut, cut length, tail, rise, board stock • Concrete — cubic yards, cubic feet, 60/80 lb bags, weight • Wall Framing — stud count, plate lumber • Drywall — net area, 4x8 and 4x12 sheet counts • Masonry — CMU blocks, bricks, mortar bags • Circle, Polygons, Square-Up, and 3D Shapes — area, perimeter, volume, miter and diagonal MEASURE AND INSPECT • AR tape measure — point the camera, tap two points, read the distance • Unit converter — lengths, areas, slopes, and survey measures • Spirit level — linear, bullseye, and a locking torpedo vial with haptics • Stud finder — sweep the wall for studs and metal • Sound meter — a phone-mic estimate of jobsite noise • Inspector — camera and flashlight for tight, dark spaces • Topography — map floor dips, crowns, and flatness SAVE THE PROOF, SHARE A CLEAN RECORD Save any measurement, angle, or result — auto-named with type, date, time, and an optional jobsite location. Attach photos, mark them up, then export a branded PDF or PNG ledger, or back the whole set up to a .plumb file. Turn on Custom Branding to stamp your own business name and logo on every export. WORKS WITH ZERO BARS Your measurements, photos, and notes live on the device. No account, no login, no cloud — measure in a basement, a bare shell, or the middle of nowhere. (Purchases are processed securely through the App Store and RevenueCat.) ENGLISH AND SPANISH The whole app, including your exports, in English or Spanish. TRY IT FREE Start with a 14-day free trial of everything. After that, a single one-time purchase unlocks Construction Calculator Pro for life — no subscription, ever. MORE FROM PLUMB Roof Pitch Calculator: Roofing, AR Tape Measure: Camera Ruler and Spirit & Bubble Level are a tap away in Settings when the crew wants a single tool on its own. A note on accuracy: measurements and calculations are fast estimates for planning and reference. For cuts, code, or anything safety-critical, verify with professional equipment and qualified judgment.

Construction Calculator Pro is the ultimate professional construction, carpentry, and civil engineering calculator—built specifically for general contractors, framers, finish carpenters, masonry builders, and estimators. Engineered to replace bulky handheld jobsite calculators, Construction Calculator Pro puts tactile, sunlight-readable precision right in your pocket. It works 100% offline with zero account requirements, zero cloud dependencies, and zero monthly subscriptions. ► FRACTIONAL DIMENSIONAL MATH • Add, subtract, multiply, and divide feet, inches, fractions (down to 1/64"), yards, meters, centimeters, and millimeters. • Instant unit conversions across imperial and metric dimensions with a single tap. • Visual 0–15 fraction picker for lightning-fast entry without decimal typing errors. • Continuous paperless history tape with labeled annotations. ► STAIR STRINGER & RAFTER LAYOUT (WITH CODE CHECKS) • Stair Layout: Calculate total rise, run, number of risers/treads, stringer throat cuts, and incline angle. • Built-in IRC / IBC code validation instantly flags non-compliant riser heights or tread depths. • Rafter Cuts: Calculate common rafters, hips, valleys, jacks, ridge deductions, and birdsmouth seat/plumb cuts with real-time 2D CAD diagrams. ► RUNNING TAPE & BALUSTER SPACING • Mark framing studs, joists, and baluster center-to-center layouts in a single continuous pass. • Built-in 4-inch sphere safety check ensures railings meet building code standards. ► CUT LIST & BOARD OPTIMIZER • First-Fit Decreasing (FFD) 1D bin packing optimizer minimizes scrap and lumber costs. • Automatically factors in saw blade kerf thickness so your physical cuts match your calculations. ► CIVIL & STRUCTURAL TAKEOFFS • Concrete Estimator: Slabs, footings, round columns, and curbs with custom waste factors. • Drywall & Sheathing: Sheet counts, joint compound, and screw estimates. • Brick & Block Masonry: Modular brick and CMU block counts with mortar volume. • Concrete Mix Proportions: Cement, sand, aggregate, and water weights for nominal mixes. • Rebar BBS (Bar Bending Schedule): Total length, weight, and cutting lists. • RCC Structural Elements: Beams, columns, and slabs. • Earthwork & Excavation: Trench, pit, and swimming pool volume estimations. ► INTERNATIONAL BUILDING CODES (195+ COUNTRIES) • Select your jurisdiction to automatically apply local stair rise/tread rules, baluster maximums, and safety guard regulations. ► PRIVACY & TRANSPARENCY • 100% Offline: Calculates entirely on your device. • Zero Data Collection: No tracking, no user accounts, nothing sent to external servers. • Fair Pricing: Free with non-intrusive banner ads that never block your keypad. Optional one-time $9.99 purchase removes all ads forever—no subscriptions. Support & Privacy Policy: https://chronos-labs.tech