Introducing the Construction Master 5 Calculator for Android


The Construction Master 5 calculator for your Android smartphone is equipped with the same features and functions as the industry-standard advanced construction-math calculators from Calculated Industries. Please note that if you switch from an Android device to an iPhone or iPad, you will need to purchase a new license due to incompatibility.

Why Choose Construction Master 5?


There’s no learning curve involved—just one powerful, easy-to-use calculator app designed for:



  • Contractors

  • Builders

  • Carpenters

  • Architects

  • Engineers

  • Tradespersons

  • Advanced Do-It-Yourselfers


This app saves you time with solutions tailored for your construction needs:



  • Access all the functionality of the handheld Construction Master 5 calculator.

  • Effortlessly tackle tough construction-math problems and minimize errors on-site or in the office.

  • Reduce costly mistakes while saving time and money throughout every phase of your projects—estimating, bidding, and building.

Key Features


The Construction Master 5 calculator offers a range of powerful features:



  • Developed by Calculated Industries, the creator of award-winning Construction Master calculators.

  • All functionalities of the handheld Construction Master 5, optimized for Android smartphone users.

  • Built-in help: Press and hold any key for detailed definitions, explanations, and examples of keystrokes.

  • Powerful built-in solutions for calculating layouts, plans, bids, and estimates.

  • Work in and convert between all building dimensional formats, including:

    • Feet-inch-fractions

    • Inch fractions

    • Yards

    • Decimal feet (10ths, 100ths)

    • Decimal inches

    • Metric (m, cm, mm)



  • Right angle functions simplify square-ups, rafters, slopes, and more.

Dimensional Math and Conversions



  • Feet-Inch-Fraction, Inch Fraction, Yards

  • Decimal Feet (10ths, 100ths), Decimal Inches

  • Preset Fraction Conversions (1/2" through 1/64")

  • Full Metric Conversions Function (m, cm, mm)

Right Angle Solutions



  • Complete Right Angle/Rafter Calculations

  • Pitch Key (Slope and Grade)

  • Calculate Rise, Run, Diagonal/Common Rafters

  • Hip/Valley Key

  • Jack Rafters Key

  • Irregular Hip/Valley Rafters and Jack Rafters

  • Stair Layout Key for easy stair calculations

  • Diagonal Key

  • Expanded Rake-Wall

Area and Volume Solutions



  • Square and Cubic calculations

  • Basic Circular Calculations

  • Weight per Volume Conversions

Special Functions



  • Calculate Board Feet

  • User-Definable Preferences

  • Haptic Feedback (optional)

  • Entry Editing Backspace Key – swipe with a finger for easy editing

  • Cost per Unit (Total costs based on unit price)

  • Advanced Paperless Tape

  • Memory function for quick access to previous calculations

Perfect for Professionals


The Construction Master 5 calculator is an essential tool for Contractors, Builders, Carpenters, Architects, Engineers, Tradespersons, and Advanced Do-It-Yourselfers. Maximize your efficiency and accuracy on every project with this powerful app.