Investing
Future Value Calculator
Estimate what today’s money and recurring contributions could be worth later. Adjust the assumptions to test different scenarios and use the result as a planning estimate, not a promise.
Investing
Future Value Calculator
Result
How to use this calculator
Enter a present value (the amount you have today or are starting with), an annual interest or growth rate, and a number of years. The calculator applies compound growth to show what that amount would be worth at the end of the period. You can also include regular contributions if you plan to add money over time, which compounds alongside the initial amount.
Future value calculations are the foundation of almost every long-term financial question: how much will my savings grow? What will this investment be worth at retirement? How much should I invest today to reach a specific goal? The formula is simple — the complexity comes from choosing a realistic rate assumption.
What your result means
The future value is what your money grows to at the assumed rate over the assumed time period. The result has two components: the principal (money you put in) and the growth (what compounding added). The growth portion is what makes time the most powerful variable in the equation — doubling the rate helps, but doubling the time has an even more dramatic effect on the ending balance.
The Rule of 72 is a useful mental cross-check: divide 72 by the annual growth rate to get the approximate number of years it takes to double. At 6%, money doubles in about 12 years. At 8%, in about 9 years. At 4%, in about 18 years. If your calculator result doesn't pass this basic sanity check, recheck your inputs.
What the math leaves out
Future value calculations assume a smooth, consistent rate of return every year. Real investments don't behave this way — they have good years and bad years, and the sequence matters. The future value of $100,000 growing at exactly 7% for 20 years is not the same as the future value of an investment that returns 20% one year and -6% the next, even if the average is 7%.
Inflation is the other major omission. A future value of $500,000 in 25 years is not the same as $500,000 today. At 3% average inflation, $500,000 in 25 years has purchasing power roughly equivalent to $239,000 today. For long-horizon projections, consider using a real return rate (nominal return minus estimated inflation) rather than the raw nominal rate.
Frequently asked questions
What's the difference between future value and present value?
Future value answers "what is today's money worth later?" Present value answers the reverse: "what is future money worth today?" They're two sides of the same calculation. If $10,000 today grows to $18,000 in 10 years at 6%, then the present value of $18,000 received in 10 years (discounted at 6%) is $10,000.
How does compounding frequency affect future value?
More frequent compounding produces a slightly higher future value than annual compounding at the same stated rate. Monthly compounding on a 6% annual rate produces an effective rate of about 6.17%. For most multi-year projections, the difference between monthly and annual compounding is real but not dramatic — a few percent over 20 years. The rate assumption and time horizon matter far more.
Can I use this to figure out how much to save for a goal?
Yes, in reverse. If you know the future value you want (say, $200,000 in 15 years) and an assumed rate, you can work backwards to find the lump sum or contribution needed today. The Savings Goal Calculator on WalletCalcs does this directly — enter your target and timeline and it calculates the required contribution.