Contractor's Calc
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Construction Calculations / Made Easy.

Smartphone App for All of Your Construction Calculation Needs


Contractors Calc Smartphone App

Contractor’s Calc is a simple, yet powerful smartphone app used for performing all of the necessary formulas and calculations one might encounter on the job site, and in the commercial construction and home industry. Featuring over a dozen different formulas and algorithms combined with easy text and e-mail results functions; this is the simplest and most useful app for those looking for a quality construction calculator.

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Contractors Calc

The Contractors Calc Smartphone App was created to quickly calculate all of the necessary formulas that the construction industry relies on in an easy to use app on your iPhone. Our mission is to make the complicated task of estimation and calculating easier for anyone working on the job, or in the construction industry.

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Computech Systems Inc.

Computech is an electronics company specializing in the manufacturing of racing data logger systems, motorsports weather stations, computer software and construction calculator applications. Since 1986 Computech has been providing quality electronics in racing an construction backed by our 24/7 tech support.


The Essential App for all Construction Workers

Construction Formulas & Algorithms

Perform numerous calculations from excavation, footings, asphalt, slab, grades, cut/fill, loan repayment and more.

Easy To Use Construction Calculator

Our easy-to-use app allows for difficult calculations to be made by simply clicking an icon and entering variables.

Save Job Site Notes For Later

Quickly enter any important notes or job site details and send via text or save everything to reference later on.

Text & Email Your Results

Easily send text or e-mail job site notes and calculations to anyone through our Contractor’s Calc app.

Download Now

Available for iPhone on The App Store


Contact Us About Contractors Calc

Contractors Calc

Computech Systems Inc.
30069 Business Center Drive
Charlotte Hall, MD 20622

Tech Support

Matt Parlett
Phone: 301-481-3675


Construction Calculations / Made Easy.

Smartphone App for All of Your Construction Calculation Needs