Construction Master Pro Calc

In-app purchases
4.8
8.64K reviews
100K+
Downloads
Content rating
Everyone
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About this app

FREE Try Before You Buy trial, your Google account is not charged by Google during the free trial.

Optimize efficiency in all your projects with Construction Master Pro, the feet-inch-fraction construction calculator.

Construction Master Pro combines two applications: Construction Master Pro & Construction Master Pro Trig. Both feature a comprehensive User’s Guide and targeted help functions.

Developed with the core engine used in advanced construction calculator models, ensuring reliable performance for construction mathematics.

WHY IT'S A MUST-HAVE TOOL
• Powerful built-in solutions make it ideal for completing layouts, plans, bids, and estimates.
• Work in and convert between all common building dimensional formats US & Metric.
• Built-in right angle functions simplify square-ups, rafters, slopes, and more.
• Full trigonometric functions.

BUILT-IN SOLUTIONS:
Dimensional Math and Conversions
• Feet-Inch-Fraction, Inch Fraction, Yards
• Decimal Feet and Inches (10ths, 100ths)
• Preset Fractions (1/2" through 1/64")
• D:M:S, Decimal Degree Entry and Conversions
• Full Metric Function (m, cm, mm)

Right Angle Solutions
• Complete Right Angle/Rafter Calculations
• Pitch Key (Slope and Grade)
• Rise, Run, Diagonal/Common Rafter Keys
• Regular and Irregular Hip/Valley & Jack Rafter Keys
• Rafter Cutting Angles (Plumb, Cheek and Level Cuts)
• Stair Layouts (including – Riser Limit, Stairwell Opening, Headroom, Floor Thickness)
• Rake-Wall (including Arched)

AREA AND VOLUME SOLUTIONS
• Square and Cubic
• Roof – Bundles, Squares, 4x8 Sheets, Pitch, Plan Area
• Drywall, Siding and Paneling 4x8, 4x9 and 4x12
• Column/Cone Area and Volume
• Basic & Advanced Circular Calculations
• Weight per Volume Conversions
• Length, Width and Height Keys
• Blocks, Footings

SPECIAL FUNCTIONS
• Trigonometric Function Keys: Sine, Cosine, Tangent, Arcsine, Arccosine, Arctangent
• Board Feet
• Studs: Find number On-center
• User-Definable Preferences
• Cost per Unit (total costs based on unit price)
• Equal-Sided Polygon
• Compound Miters
• Crown Angle
• Advanced Paperless Tape for all functions
• 4 Memories

APP-ENHANCED FEATURES
• NEW! Optional Fast Fractions - dedicated keys to speed and simplify how you enter common fractions.
• NEW! Project Notes - Create shareable text or voice-to-text notes and lists. Set up folders by project or client.
• Entry Editing Backspace Key – enable with Legacy Mode or double-tap the display.
• Context-sensitive Help - press and hold any function key for Help text, diagrams, or videos.
• Ability to Save and Share calculations and outputs (e.g., cut lists) to File or others on your crew.

SUBSCRIPTION INFORMATION
The first seven days are free. Subscriptions offered will automatically renew at the end of the chosen period. Upon purchase confirmation and completion of the free trial, payment will be charged to your Google Play account. The subscription will automatically renew unless the subscription is canceled in your Play Store account subscription settings at least one day (24 hours) before the subscription period ends (including the free trial period). You can manage your subscription by going to Play Store > account > Payment & subscriptions > Subscriptions > tap the app subscription.

TRADEMARKS
Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc.

Copyright 2024

Optimize efficiency in all your projects with Construction Master Pro, the feet-inch-fraction construction calculator.
Updated on
Mar 24, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Financial info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.8
8.27K reviews
J Marsh (Balls)
June 26, 2025
Purchased app Jan 7 2011 for 19.99. You're better off using a free calculator online. I've been trying for over a year to get fixed; customer service is really not all that helpful. I sent an email from within the app I'm trying to get reactivated, and they sent me information for an app that I didn't have a problem with. Looking at all the similar reviews, it seems like they are getting over on everyone who bought it early on and are forcing you to repay yearly or monthly. Use free online cal
3 people found this review helpful
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Calculated Industries
May 25, 2023
Hi - you just missed our last update which would have bypassed this screen. Please contact our Technical Support Team at techsupport@calculated.co and we will get you back up and working again.
Garland Dunomes
January 15, 2025
I like the app, but!!!! I find the app appealing, however, I am terminating my trial subscription. I would be comfortable with a one-time fee for the subscription, but not an annual renewal fee. I possess the physical construction master pro calculator. I find the convenience of its availability on the phone to be appealing, especially in the event I do not have access to a physical calculator.
9 people found this review helpful
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Calculated Industries
January 15, 2025
Thank you for your comments and thanks for using our product. We appreciate your perspective and are glad we have options for you.
Benjamin Cobb
October 26, 2023
It's been fine for a long, but now I'm locked out of a paid pro subscription, and I have to go the the most labyrinthine f_ing process to dig up purchase information from 8 years ago, only to find that it didn't work. Wouldn't it just suffice to sign into my Google account from which I made the purchase??? Edit: got it solved, developers are responsive. Still not pleased about the reactivation hassle, but I was too hasty to review.
6 people found this review helpful
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Calculated Industries
October 24, 2023
Hey Benjamin, likely the zip code. Email us at techsupport@calculated.com and we will get you fixed up. As to the second question, you are correct! We are working on it, apologies and thank you. Email us, we'll get you sorted.

What’s new

Android navigation bar (gesture navigation)/3-button navigation updated.