Key facts
- Brand
- HP
- Model
- HP 12C
- Category
- Other device
- Industry
- Electronics
- Documents
- 7
- Languages
- EN · ZH
- Last added
- 2026-10-06
Start here
HP 12c Financial Calculator Quick Start Guide
This guide helps new users get up to speed with the HP 12c Financial Calculator. It covers the layout of the keys, how to access primary and alternate functions, and the basic operation modes such as Reverse Polish Notation (RPN).
The booklet also explains how to customize settings like digit separator, number display format, and payment mode, as well as practical information on battery replacement, warranty, and regulatory notices.
HP 12C specifications
| Model | 12C/12C Platinum |
|---|---|
| Input modes | RPN and ALG |
| Built‑in functions | 120 (basic) / 130 (extended) |
| User memory registers | 20 (basic) / 30 (extended) |
| Program memory steps | 99 steps (basic) / 400 steps (extended) |
| HP part number | F2232-90011 |
Source: HP 12C/12C Platinum Financial Calculator User Manual
All HP 12C documents by type
How to use the product for one specific task, with worked examples.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
The shortest path to a working setup, usually only a few pages.
Questions answered in these manuals
How do I compute the slope (B) on the HP 12C?
Enter the data pairs, clear the statistics memory, then press the sequence "1 gR" to compute the slope.
How can I forecast x for a given y value using the HP 12C?
After computing the intercept and slope, clear the statistics memory, enter the desired y value, and press "5 gR" to obtain the corresponding x.
What input modes does the HP 12C/12C Platinum support?
It supports both RPN and ALG input modes.
How many built‑in functions are available?
The calculator provides 120 basic functions and 130 extended functions.
How do I turn the HP 12c on and off?
Press the S key to turn the calculator on; pressing S again turns it off, and it also powers down automatically after 8–17 minutes of inactivity.
How can I change the digit separator from a comma to a point?
Press and hold the . key, then press and release S; this toggles the separator between comma and point.