A modern HP-12C for real financial decisions

Run financial simulations in seconds with true HP-12C logic: calculate payments, interest, and investments now, with no install required.

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Built for desktop and mobile

Financial engine with validation

SEO-first architecture

HP-12C emulator

Active engine with RPN stack, f/g functions (1/x, sqrt, ln, e^x, y^x), and financial registers n, i, PV, PMT, and FV including missing-variable solving.

Mode

READY

Ready

Frequently asked questions

Does it work on mobile?

Yes. The layout is tuned for touch interactions, keyboard input, and fast reading on smaller screens.

Will results match a physical HP-12C?

Yes. The engine goal is to match the classic HP-12C behavior for RPN and financial calculations.

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Calculation guides by use case

Fast step-by-step key sequences for real-world loan, retirement, and receivables analysis.

HP-12C financial glossary

Car loan monthly payment
Compute monthly payment with n, i, PV, and PMT.
Retirement target with monthly contributions
Find the PMT contribution needed to reach a future-value goal.
Present value for receivables discounting
Estimate current value of a future receivable under a monthly discount rate.