Annuity Payment Calculator
This calculator solves for the payment in an annuity given either the present value or future value. Enter the loan amount or savings goal, the interest rate per period, and the number of periods. The calculator shows the required regular payment amount. Use this for loan amortization, mortgage calculations, or savings plans.
Annuity payment formulas
From PV: PMT = PV × r / (1 - (1 + r)^(-n))
From FV: PMT = FV × r / ((1 + r)^n - 1)
where r = interest rate per period, n = number of periods
How to use this calculator
- Select your calculation mode: "Present Value" for loans or "Future Value" for savings goals.
- Enter the loan balance or savings goal in the "Amount" field.
- Enter the interest rate for one period in "Interest rate per period".
- Enter the total number of payment periods in "Number of periods".
- The calculator shows your required payment and totals.
Annuity payment calculator: frequently asked questions
When do I use this calculator?
Use it to find loan payments, retirement withdrawals, or required savings deposits. It solves for the payment amount given a loan balance, investment goal, or annuity value.
What is the difference between PV and FV modes?
PV mode finds the payment that pays off a debt (like a loan). FV mode finds the payment needed to accumulate to a savings goal.
Can I calculate irregular payments?
No, this calculator assumes equal payments. For loans or investments with varying payments, use a spreadsheet or specialized financial software.
What is a reasonable payment amount?
Compare your calculated payment to your budget. If it is too high, consider extending the loan term or lowering the goal. If it is too low, verify your inputs.
Does this include fees or taxes?
No, this calculator shows the pure payment amount. Add loan fees, insurance, taxes, or other costs separately.
Official sources
- U.S. Securities and Exchange Commission: Investor Education.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.