Calculate the future value, present value, and payment schedule for ordinary annuities and annuities due. Includes growing annuity analysis and year-by-year breakdown.
An annuity is a series of equal payments made at regular intervals over a fixed period of time. Annuities are fundamental to personal finance, insurance, and retirement planning. Whether you are saving for retirement, receiving pension payments, or evaluating an insurance product, understanding how annuities work gives you a critical edge.
There are two main types: an ordinary annuity where payments occur at the end of each period, and an annuity due where payments happen at the beginning. The timing difference has a meaningful impact on the total value because payments in an annuity due earn one extra period of interest.
This calculator handles both ordinary and due annuities, computes the future value and present value, and also models a growing annuity where payments increase at a constant rate. The year-by-year schedule shows exactly how your money compounds, making it easy to set savings targets and compare different strategies. Use it to plan retirement contributions, evaluate pension offers, or understand structured settlement values.
Calculating annuity values by hand is tedious and error-prone, especially with monthly compounding and dozens of periods. This calculator instantly handles the math so you can focus on strategy — how much to save, which annuity product to choose, and whether a lump sum or stream of payments is better for your situation.
It is widely useful for retirement planning, evaluating structured settlements, comparing insurance annuity quotes, and understanding sinking fund requirements for businesses.
Ordinary Annuity FV = PMT × [(1 + r)^n − 1] / r Annuity Due FV = PMT × [(1 + r)^n − 1] / r × (1 + r) Present Value = PMT × [1 − (1 + r)^−n] / r Where PMT = periodic payment, r = periodic interest rate, n = total periods.
Result: $411,033.72
With monthly payments of $1,000 at 5% annual interest compounded monthly over 20 years, the ordinary annuity grows to approximately $411,034. Total contributions are $240,000 and interest earned is about $171,034.
Annuities come in many forms. Fixed annuities pay a guaranteed rate, while variable annuities are tied to investment performance. Immediate annuities start paying out right away, while deferred annuities accumulate value before payouts begin. The formulas in this calculator apply to all of these — the key difference is in the interest rate assumption.
Most employer-sponsored retirement plans (401k, 403b) are essentially deferred annuities. You make regular contributions that compound over your working years, then convert to an income stream in retirement. Understanding the math behind annuities helps you set realistic savings targets and evaluate whether you are on track.
When receiving a pension or settlement, you often have the choice between a lump sum and periodic payments. Use the present value calculation to compare: if the lump sum is less than the present value of the annuity at a reasonable discount rate, the annuity payments are the better deal.
An ordinary annuity makes payments at the end of each period, while an annuity due makes payments at the beginning. Because payments in an annuity due earn interest for one extra period, the future value is slightly higher.
More frequent compounding (monthly vs annually) increases the future value because interest is calculated and added to the balance more often, creating more compounding cycles. Use this as a practical reminder before finalizing the result.
A growing annuity is one where payments increase at a constant rate each period, often used to model inflation-adjusted retirement contributions. Keep this note short and outcome-focused for reuse.
Yes. Enter your planned monthly contribution, expected return rate, and years until retirement to see how much you will accumulate.
For stock market investments, 7-10% nominal is common. For bonds or fixed annuities, 3-5% is typical. Always consider inflation when evaluating real returns.
It tells you how much a series of future payments is worth today. This is essential for valuing pensions, insurance payouts, and structured settlements.