About the HP 12C Online Calculator

What this site is

HP 12C Online Calculator is an independent, browser-based emulator for practicing financial calculations and learning the HP 12C workflow. It is not made by, affiliated with, or endorsed by HP Inc. HP and HP 12C are trademarks of their respective owners.

Why it is free

We make the emulator free to use so learners and finance professionals can practice common calculator workflows directly in a web browser, without installing a separate calculator app.

What you can do here

Use the calculator to practice RPN entry and financial calculations such as time value of money, cash flows, NPV, IRR, and bonds. The Learn section also provides step-by-step guides with worked examples.

Calculator results are provided as a learning and calculation aid. Check important figures against your own inputs and requirements before relying on them.

Who maintains the site

This independent project is maintained by its site owner. It is not an official HP product. If you find an error or have a question about the site, please contact us.