The HP15C corner

The HP15C corner

The HP-15C is a high-end scientific pocket calculator with a root-solver and numerical integration. A member of Hewlett-Packard Voyager series of programmable calculators, it was produced between 1982 and 1989. The processor used the then new technology of Silicon on Sapphire that allowed ultra-low consumption. The 3 button batteries provided often lasted decades!

For many users, it is the pinnacle of HP calculator engineering together with the HP42s. Due to its popularity, and based on the then-new HP12c ARM-based platform, it was reintroduced in 2011 as HP15c Limited Edition. It was 150 times faster than the original, but it had higher consumption and the batteries would last around 4 months or normal use.

Free Leather Case with each HP15c CE Standard or Enhanced (offer valid until June 30th)

On May 2nd, 2023 HP announced the new HP15c Collector's Edition: the new version, with more speed, more memory and more battery life than the previous iteration. 


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Product no.: overlaycable

40.00 *
In stock

New HP15c CE User Manual

Product no.: Manual HP15c CE

18.00 *
Not in stock

HP15c enhanced pack

Product no.: HP15c_Enhanced

139.99 *
Old price 214.99 €
In stock

HP15C Collector's Edition

Product no.: HP-15c #INT_2

129.99 *
Product data sheet
In stock

HP15c enhanced pack - B stock

Product no.: HP15c_Enhanced_B

No more units available

95.00 *
Old price 139.99 €

Test overlay for HP Voyager calculator

Product no.: Overlay16

30.00 *
In stock

Data cable for HP calculators

Product no.: POGOcable

40.00 *
In stock

New Firmware Flashing service for HP12c, HP15c

Product no.: FlashVoyager

30.00 *

Leather cover set

Product no.: Leathercovers

60.00 *
In stock

New HP12C battery cover - new model

Product no.: HP12c cover[1]

16.00 *
Old price 17.00 €
In stock

New HP12C battery cover

Product no.: HP12c cover

9.00 *
Old price 12.00 €
In stock

New Collector's Financial Calculator Pack+15c

Product no.: Financial Pack+15c

350.00 *
In stock
* Prices include VAT

HP15c new self test

Self test procedure for the HP15c Collector's Edition

HP15c related pages

Some links to HP15c resources

HP15c Videos

Some interesting videos about HP15c

How to use the Programming Cable

How to use The Calculator Store cable for programming HP15c, HP12c and HP10bII calculators