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Free42 HP-42S Calculator Simulator 3.3.10

Author: Thomas Okken
Date: 10/28/2025
Size: 5-15 MB
License: Open Source
Requires: 11|10|8|7|Android|Linux|macOS
Downloads: 36481 times

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Free42 HP-42S Calculator Simulator is an Open Source recreation of the HP-42S Scientific Programmable Calculator and HP-82240 Printer. Plus42 is also available.

Free42 has two calculators, binary and decimal. It also has two skins, realistic and standard. Other actions include the option to import or export programs and clear or show the printout. Preferences include settings like single instance, output to gif or text, keeping the window on top, and more.

Free42 looks identical to the HP-42S, at least as seen here. Aside from that, you push buttons. Our math skills align with our graphics and web design skills, so we can only say that it also seems to work well.

Similar:
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● How to Use Windows Calculator for Date Calculation
● How to Keep Windows Calculator Always on Top

Version History for Free42 HP-42S Calculator Simulator:
https://thomasokken.com/free42/history.html

Editor's Note:
Mac version numbers may differ.

Screenshot for Free42 HP-42S Calculator Simulator

Official Download Mirror for Free42 HP-42S Calculator Simulator

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