This free online Future Value Annuity Calculator will calculate how much a series of equal cash flows will be worth after a specified number years, at a specified compounding interest rate.
Plus, this online annuity calculator will calculate future value for either an ordinary annuity, or an annuity due, and display an annual growth chart so you can see the growth on a yeartoyear basis.
If you are not sure what future value is, or you wish to calculate future value for a lump sum, please visit the Future Value of Lump Sum Calculator.
An annuity is defined as a series of equal cash amounts (cash flows, payments, deposits, etc). For example, if I were to promise to pay you $100 per year for the next 3 years, that arrangement could be considered to be an annuity.
From your perspective, the periodic amounts represent deposits, as in, you can deposit the amounts into an interest earning account as you receive them. From my perspective, the periodic amounts represent payments, as in, I must remove the amounts from an interest earning account in order to pay them to you. This explains why annuity amounts (cash flows) can be referred to as deposits and payments at the same time.
Using the above example, if you were to invest each of the $100 annual payments at a compounding interest rate (earning interest on interest paid), the future value of that series of cash inflows would grow with each passing compounding and payment interval. The total amount this series of equal amounts would grow to after three years would be the future value of the annuity. So what would be the future value amount? That depends on the agreed upon interest rate and on whether or not we agreed to an ordinary annuity or to an annuity due.
Continuing with our example, if I agreed to make the $100 annual payments at the beginning of each year, our arrangement would be considered to be an annuity due. On the other hand, if I made the payments to you at the end of each year, our arrangement would be considered to be an ordinary annuity.
So which is better? From your perspective, an annuity due would be better since you could earn interest on the first year's payment for the entire year. From my perspective, an ordinary annuity would be better since I could earn interest on the $100 for a full year before I made the payment to you.
So in your case, if you were earning an annual interest rate of 6% on the deposited $100 payments, the future value of an annuity due arrangement would be $337.46, whereas the future value of an ordinary annuity arrangement would be $318.36 ($19.10 less).
The understanding of future value, both for lump sums and for annuities, is absolutely critical to making financial decisions that will serve to maximize the emotional returns on the money you earn. Why? Because in order to make emotionally profitable decisions (decisions that result in more good feelings that bad feelings), you need to be aware of, and be able to accurately forecast, what you are giving up in return for what you are getting.
In terms of spending money, what you give up is referred to as financial opportunity costs, and future value calculations are what helps you to determine the financial opportunity costs of choosing one alternative financial decision over another. And of those alternatives, the ones that tend to have the biggest effects on your emotional profitability, are those that involve spending money for nonessential expenditures that lose their value with time and/or use.
Suppose you are considering entering into a data plan for your smart phone that will cost you $35 per month. In order to make an informed decision, you need to be aware of and give equal weight to the financial opportunity costs that will come with a monthly expenditure of $35.00 for a nonessential expendable.
If you have at least 30years left before you can retire, and could earn 6% on the $35 payments if you invested them, future value calculations will tell you that the financial opportunity cost of paying for a data plan for the next 30years will be $22,733.82 (future value of $35,333.82 less $12,000.00, or 360$35 payments). That is how much interest earnings you will be giving up by paying for the data plan for the next 30years (of course, your loss will be the data plan company's gain).
And that's only considering just one of the possible hundreds of the nonessential expenditures you likely make on a regular basis. After all, if you spend more for an essential than the bare minimum necessary (buying nongeneric, paying finance charges on purchases, paying inflated prices, etc.), then these excess essential expenditures should be considered to be nonessentials as well.
With that, let's use the Future Value Annuity Calculator for calculating future value and financial opportunity costs for either ordinary annuities or annuities due.
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Type of annuity: An Annuity Due indicates payments are received at the beginning of each period, whereas an Ordinary Annuity indicates payments are received at the end of each period.
Periodic payment/deposit amount: Select the payment/deposit interval and enter the corresponding payment/deposit amount for the selected interval.
Number of years to calculate future value for: Enter the number of years you would like to calculate future value for.
Annual interest rate: Enter the annual interest rate to be used for the future value calculations. Please enter as a percentage (for .06, enter 6%). Note that the future value annuity calculator will convert the annual interest rate to the rate that corresponds to the payment frequency. For example, if you selected a monthly payment frequency, the future value annuity calculator will divide the annual rate by 12.
Future value of an annuity: Based on your entries, this is the future value of the series of equal amounts you entered terms for.
Total of annuity payments/deposits: Based on your entries, this is the total of the payments/deposits for all periods.
Compound interest earned: Based on your entries, this is how much compound interest will be earned on the invested payments. This result also represents the financial opportunity cost of spending the periodic payment on nonessential expenditures that lose their value with time and/or use (depreciable assets and expendables).
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