Construction Calc Lite vs RedX Construction Calculator

Designed by tradespeople, for tradespeople. Construction Calc Lite handles the heavy lifting of jobsite math—fractions, dimensional conversions, framing, and layout—so you can focus on the build. Whether you're a carpenter, concrete finisher, framer, superintendent, or DIYer, Construction Calc Lite delivers fast, accurate jobsite calculations with zero guesswork. WHY TRADES CHOOSE CONSTRUCTION CALC • True Feet-Inch-Fraction Math: Add, subtract, multiply, and divide in full dimensional fractions down to 1/16th (or user-set precision) with automatic reduction. • Seamless Unit Switching: Effortlessly mix Imperial and Metric. Convert feet-inch-fractions to meters, centimeters, or millimeters in a single tap. • Split-Screen Display: View decimal values, feet/inch fractions, memory registers, and scale factors simultaneously in large, high-visibility text. • Visual Cut & Layout Solvers: Dedicated modules for right triangles, miters, arcs, and baluster spacing complete with clear visual diagrams. • 50 Memory Registers & Full History: Never lose a cut list or measurement. Easily recall previous calculations on the fly. DEDICATED MODULES FOR EVERY TRADE • Framing & Layout: Calculate stud, fence post, and baluster spacing (horizontal, angled, or circular). • Miters & Trim: Visual miter and bevel angle calculator for crown molding and finish carpentry. • Geometry & Stairs: Instant solutions for right triangles, diagonals, rafter lengths, arcs, and chords. • Concrete, Volume & Area: Quickly calculate slab volume, footings, room square footage, and block/tank capacities. • Materials & Coverage: Estimate drywall sheets, tile, paint, and material costs with built-in waste allowances. • Smart Blueprint Scaling: Instantly scale plan drawings up or down to true field dimensions. BUILT FOR THE JOBSITE • High-Contrast Display: Large, legible fonts engineered for bright outdoor sunlight or dark crawl spaces. • Works 100% Offline: No cell service required on remote sites.

The 100% FREE construction calculator. REDX CALC is the feet-inch-fraction calculator for framers, carpenters, contractors and builders: rafter, stair, roof pitch and framing math with no ads, no subscriptions and no in-app purchases. Work the way you measure: add, cut and convert full feet-inch dimensions with fractions, and switch between imperial and metric in one tap. FEET & INCHES MATH • Add, subtract, multiply and divide feet-inch measurements with fractions • Adjustable fraction precision • Instant conversion between yards, feet, inches, meters, cm and mm • Percent, square, square root and reciprocal functions • Memory keys and automatic calculation history RIGHT TRIANGLES & ROOFS • Pitch, Rise, Run and Diagonal keys: enter what you know, tap to solve the rest • Hip/Valley and Jack rafter solvers • Miter angles for trim and framing STAIRS, ARCS & CIRCLES • Stair layouts: risers, treads, stringers and the stairwell opening • Arc solver for arched openings • Circle facts, columns and cone volumes DIMENSIONS • Length, Width and Height registers for areas and volumes • Unit-aware math keeps your results in the units you build with KNOW-HOW BUILT IN • Step-by-step guides for the basics, roofs, stairs, circles, conversions and more • Light and dark mode 100% FREE. FOREVER. No ads. No in-app purchases. No subscriptions. Every feature included. Part of the RedX Apps family: RedX Decks, RedX Roof, RedX Walls and RedX Stairs. Terms of Use https://www.redxapps.com/terms-of-service