Ditch your handheld calculator for one of these mobile apps that can do the math for you.

Construction Master (iOS, Android)


This app will cost you a few bucks (14.99 for iOS, 19.99 for Android), but it can also do everything the Construction Master Pro handheld can...at a fraction of the price.

DEWALT Mobile Pro (iOS)


If you're looking for a free option, you may have it with DEWALT's Mobile Pro app, only available for iOS devices. The app uses templates and add-ons to make calculations quick, easy, and more understandable.

Handyman Calculator (Android)


An Android favorite, the Handyman Calculator has a free and paid version that isn't too bad at 4.99. The plethora of available calculations, conversions, and charts make this app a must-have for any Android user on the jobsite.

Visit the BUILDER App Center for more app reviews.

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Andrew Knight is a content producer at Hanley Wood. Tweet at @AndrewKnight_HW.