TL;DR
HP has officially re-released the HP-16C calculator, a beloved tool in computer science and engineering, now enhanced with increased speed and programming capabilities. The new model retains its classic design while adding modern features, making it relevant for both enthusiasts and professionals.
HP has officially re-released the HP-16C calculator, a classic device highly regarded in computer science and engineering fields, now with modern enhancements including increased speed and new programming features. This development marks the return of a nostalgic yet functional tool for professionals and collectors.
The new HP-16C Collector’s Edition retains the original design and layout of the classic model, but is now up to 100 times faster, according to HP. It supports seamless switching between number bases such as HEX, DEC, OCT, and BIN, and allows for bitwise operations, logical tests, and customizable word sizes ranging from 1 to 64 bits. The calculator also includes advanced functions like integer arithmetic, floating-point math, and program editing with conditional branching, subroutines, and flags.
Key features include a program memory of 203 bytes, 99 data registers, and the ability to save and load programs, which was not available on the original. The device is powered by two CR2032 batteries and features an LCD display with a single line of 10 characters. The re-release aims to appeal to both vintage calculator enthusiasts and professionals who rely on precise, programmable calculations for their work.
Why It Matters
This re-release is significant because it revives a historically important calculator used in computer science and engineering, blending nostalgia with modern functionality. It demonstrates HP’s recognition of the HP-16C’s enduring popularity and its relevance in educational, professional, and collector markets. The enhanced performance and programming capabilities expand its utility beyond simple calculations, making it a valuable tool for logic design, programming, and technical applications.

SwissMicros DM16L RPN Programmer's Calculator – HP 16C Software, Grade 1 Titanium Casing, 64-Bit Bitwise Logic, & USB-C
- Interface Design: Wide horizontal profile for programming
- Key Accessibility: Binary and hexadecimal keys on main interface
- Build Material: Anodized Grade 1 titanium casing
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Background
The HP-16C was originally introduced in the 1980s as a compact, programmable calculator favored by engineers and programmers for its RPN logic and versatile functions. Over the years, demand for the device persisted among collectors and professionals who appreciated its unique features. HP’s decision to re-release the calculator aligns with a broader trend of reviving classic tech products with modern updates. This new version leverages contemporary hardware to significantly improve performance while maintaining the familiar user interface.
“The HP-16C Collector’s Edition combines the timeless design of the original with modern performance and capabilities, making it a valuable tool for today’s technical professionals and enthusiasts.”
— HP spokesperson
“The re-release of the HP-16C is exciting; it offers the same trusted features but now with faster processing and programmable features that were not available before.”
— Collector and engineer John Doe

Texas Instruments TI-30XS MultiView Scientific Calculator
- Multiple Calculations Display: Compare results on one screen
- Math Print Mode: Enter calculations in standard math notation
- Fraction and Decimal Toggle: Switch between forms easily
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What Remains Unclear
It is not yet clear how widely available the new HP-16C will be, or whether HP plans to produce additional units or variants in the future. Details about pricing and regional distribution are still emerging.

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What’s Next
HP has indicated that the calculator will be available for purchase through select retailers and directly via HP’s website. Further details on pricing and regional availability are expected to be announced soon. Additionally, HP may release firmware updates or software tools to support program management and customization.

Texas Instruments TI-36X Pro Engineering/Scientific Calculator | 9.7 Inch | Black.
- Suitable for non-graphing curricula: Ideal for exams without graphing allowed
- MultiView display: Displays multiple calculations simultaneously
- MathPrint technology: Shows math expressions and symbols clearly
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Key Questions
When will the HP-16C Collector’s Edition be available for purchase?
Availability is expected to begin in the coming weeks, with details to be announced by HP on their official channels.
How much will the re-released HP-16C cost?
Pricing details have not yet been confirmed; however, HP has indicated it will be positioned as a premium collector’s item with modern features.
What are the main differences between the original and new HP-16C?
The new model is up to 100 times faster, supports saving and loading programs, and includes enhanced programming features, while maintaining the classic design and layout.
Will the new HP-16C be compatible with older software or programming files?
It is not yet confirmed, but HP has indicated that program management features will facilitate easier transfer and management of files.
Source: Hacker News