Future Value Calculator
What will your money be worth in the future? Enter any amount and rate — see the year-by-year growth table.
$10,000 invested at 8% per year doubles to $21,589 in 10 years, and grows to $46,610 in 20 years thanks to compound interest. Add a $200/month contribution and 20-year total reaches $167,072. This is the power of time in investing.
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Year-by-year growth
| Year | Balance | Interest earned | Total contributed |
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Future value formulas
Future value is what a sum of money will be worth at a specific point in the future, once it has grown at a given rate of return. It answers the most basic planning question in investing: if I put money in today and leave it to compound, how much will I have later? Because growth builds on previous growth, the curve is exponential — the longer the horizon, the more dramatic the final number.
The calculator handles two engines and adds them together. The lump-sum part takes your present value and multiplies it by the growth factor (1 + r/n) raised to the number of periods, so a single deposit keeps compounding untouched. The monthly-contribution part is an annuity: each deposit you add along the way compounds for the time that remains, and early contributions earn far more than later ones. Set the contribution to zero to model a pure lump sum, or set the present value to zero to model a savings plan from scratch.
Compounding frequency changes how often interest is added back to the balance. More frequent compounding (monthly or daily rather than annual) raises the final figure, though at typical rates most of the benefit comes from moving to monthly — daily adds very little beyond that. To interpret the result, compare the total future value against everything you actually put in: the gap between them is the interest your money earned on its own. Remember these are nominal figures, before tax and inflation, so the real purchasing power of the final amount will be lower.
- 1Future value of the initial amount—
- 2Future value of contributions—
- 3Total you put in—
- 4Total future value—
- Present value (PV)
- The amount you have or invest today — the starting point that the calculation grows forward in time.
- Future value (FV)
- What that money is worth at the end of the period, after compounding at the chosen rate.
- Compounding frequency
- How often interest is added back to the balance (annual, monthly, daily). More frequent compounding produces a slightly higher future value.
- Annuity
- A series of equal, regular contributions. Each deposit compounds for the time remaining, so earlier ones grow the most.