Tools
Financial calculator.
Works like the BA II Plus: time value of money, cash-flow NPV and IRR, and loan amortization. Use the keypad, your keyboard, or the worksheets. They share the same registers.
Ready
Enter any four values, then compute the fifth. Money paid out is negative.
CF0 is the initial flow at time zero. Each later flow can repeat for several periods (F).
| Flow | Amount | F | Remove |
|---|
- NPV
- —
- NFV
- —
- IRR
- —
Uses the TVM registers. Set up the loan there (or compute PMT), then choose a range of payments.
- BAL
- —
- PRN
- —
- INT
- —
Try it: a mortgage payment
A $400,000 loan over 30 years at 6.5%, paid monthly:
- 2ND FV clears TVM
- 12 2ND I/Y sets 12 payments per year
- 360 N, 6.5 I/Y, 400000 PV, 0 FV
- CPT PMT shows −2,528.27
Keys and conventions
- Cash-flow signs. Money you receive is positive and money you pay is negative, so a loan is PV > 0, PMT < 0.
- Chain arithmetic. Like the BA II Plus default, operations run in the order entered: 2 + 3 × 4 = 20.
- 2ND functions are printed above each key: xP/Y, P/Y, AMORT, BGN, CLR TVM and eˣ.
- Keyboard. Digits, + − * / ^, Enter for =, Backspace and Esc work outside the input boxes.
Educational only — not investment advice. Results are estimates; confirm figures that matter with your lender or adviser. BA II Plus is a trademark of Texas Instruments, which is not affiliated with this tool.