Helike Construction Calculator vs Construction Calculator

Helike is the construction calculator built for contractors, builders, and DIYers. Get instant answers for concrete, roofing, and everyday jobsite math. FEET-INCH-FRACTION CALCULATOR Add, subtract, multiply, and divide measurements in feet, inches, and fractions. AREA CALCULATOR Calculate square footage for rectangles, triangles, circles, and trapezoids. Perfect for flooring, painting, and material estimates. UNIT CONVERTER Convert between imperial and metric units for length, area, and volume. Feet to meters, square feet to square meters, cubic yards to cubic meters, and more. CONCRETE CALCULATOR Enter your slab dimensions (length, width, thickness) and get cubic yards plus the number of bags you need. BLOCK & CMU CALCULATOR Calculate how many concrete blocks you need plus mortar bags. Works for standard 8x8x16 CMU and other common sizes. FOOTING CALCULATOR Size your strip footings and spread footings correctly. Enter dimensions to calculate concrete volume for continuous wall footings and column footings. ROOF SQUARES CALCULATOR Enter your roof footprint and pitch to get total roofing squares. Essential for ordering shingles, underlayment, and other roofing materials. PITCH CALCULATOR Convert between rise/run (X:12), degrees, and percentage slope. See all three formats at once. SHINGLE & BUNDLE CALCULATOR Get accurate bundle counts for three-tab and architectural shingles. Includes starter strips, ridge caps, and underlayment square footage. Perfect for general contractors, concrete contractors, masons, roofers, carpenters, remodelers, and DIY homeowners.

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