Annuity calculator
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- FV (end of period) = p × ((1 + i)^n − 1) ÷ i = $163,879.35.
- PV = p × (1 − (1 + i)^−n) ÷ i = $90,073.45.
| Inputs | Answer |
|---|---|
| Payment per period: 1000; Interest rate per period: 0.5; Number of periods: 120; Payments are made: At the end of each period (ordinary annuity) | The future value is $163,879.35 and the present value is $90,073.45. |
| Payment per period: 1000; Interest rate per period: 0.5; Number of periods: 120; Payments are made: At the start of each period (annuity due) | The future value is $164,698.74 and the present value is $90,523.82. |
| Payment per period: 5000; Interest rate per period: 4; Number of periods: 20; Payments are made: At the end of each period (ordinary annuity) | The future value is $148,890.39 and the present value is $67,951.63. |
How to use it
An annuity is a series of equal payments. The future value is p × ((1 + i)^n − 1) ÷ i and the present value is p × (1 − (1 + i)^−n) ÷ i for payments at the end of each period; for an annuity due (payments at the start) both are multiplied by (1 + i).
$1,000 a month for 120 months at 0.5% per month (6% a year) grows to about $163,879 and is worth about $90,073 today. These are estimates from the numbers you type, not financial advice or an offer; real products add fees and change rates.
Frequently asked questions
What is the future value of an annuity?
The total the payments grow to, with interest, at the end.
What is an annuity due?
An annuity whose payments are made at the start of each period.
Why must the rate match the period?
A monthly payment needs a monthly rate.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
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General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.