This calculator computes compounded savings, debt repayments, or annuities. Each of these calculations involves five numbers:

• the initial principal amount (Present Value, PV),
• the interest rate (percentage added to the principal after each period),
• the payment added to the principal after each period,
• the number of periods (N),
• the final value of the principal (Future Value, FV).

You provide four of the numbers, and the calculator computes the other one.

The payment amount is positive for savings accumulation; it’s negative for debt repayment or annuity payments.

The calculator fails to find solutions to some solvable problems when computing the interest rate.

The result is copied into “Scratchpad”. All the results have been rounded.

Provided with no warranty whatsoever. Use at your own risk.