A Digital 10-Key Calculator that mirrors real-life



A digital 10-key calculator for your desktop.

Save time and become more efficient with your calculations.

Tired of the back and forth?

Tired of switching back and forth between your computer and a cumbersome 10-Key? Now you can replace your 10-Key altogether with PentaCalc Pro. 

Live Tape

Every calculation you make is automatically tracked on PentaCalc Pro’s computerized tape display. The tape is ‘live’ which allows you to make changes directly to the tape, and each modification will be reflected in your final result.

The tape can even be printed and saved at your convenience.

Other Features

Includes an item counter, 3 rounding options, red negative entries, and all the standard functions you are used to. You can even make annotations.

Get Your Digital 10-key Calculator Now

Bring your 10-key into the digital world.

Pentacalc Pro

Order your digital calculator today!