What could change the result?
See the value of more time or a higher rate.
Keep it growing one more year
Includes another year of any regular deposits.
Earn 1% more per year
An example—not a promised return.
Enter what you have now, your interest rate, and time. We will separate your money from the interest it may earn—without hiding the assumptions.
Estimated balance after 10 years
You add $10,000. Compound interest may add $6,470 more.
39%
From interest
$10,000
The amount entered at the beginning.
$0
All regular deposits added over time.
$6,470
Estimated growth above the money you add.
Effective yearly rate
5.12%
You entered 5%. With interest added monthly, compounding makes the estimated yearly rate 5.12%.
Inflation-adjusted value
$16,470
The estimated buying power after accounting for the inflation rate entered.
Estimated doubling time
13.9 years
How long one unchanged balance may take to double at this rate.
The estimated balance is simply your money plus the interest it may earn.
Initial investment
$10,000Extra deposits
$0Interest earned
$6,470Your money over time
Move across the chart to see the money you added and the interest earned at any point.
Year 10
$16,470
What could change the result?
Keep it growing one more year
Includes another year of any regular deposits.
Earn 1% more per year
An example—not a promised return.
Does frequency matter?
Yearly
$16.3K
Monthly
$16.5K
Daily
$16.5K
At the same quoted rate, daily instead of yearly compounding changes this result by $198. The rate and time usually matter much more.
Year-by-year detail
The quoted annual rate, compounding schedule, and effective yearly rate remain separate.
Your initial investment, extra deposits, and interest earned are never mixed together.
Results are estimates. Actual savings rates, investment returns, fees, and inflation can change.
Calculation standard
Questions, answered
Compound interest means earning interest on your original money and on interest already added. Over time, this can make the balance grow faster than simple interest, which is calculated only on the original amount.
The estimated final balance includes your initial investment, any regular deposits entered, and the estimated interest earned after the annual fees entered.
The calculator supports daily, monthly, quarterly, twice-yearly, and yearly compounding. More frequent compounding can produce a slightly higher balance when the quoted annual rate is the same.
It is the estimated percentage your money grows over one full year after accounting for how often interest is added and any annual fee entered. It helps translate a quoted rate into its compounded yearly effect.
Yes, slightly. A deposit made at the beginning of a period has more time to earn interest than the same deposit made at the end. The difference can become larger over long periods.
When you enter an inflation rate, the calculator estimates how much buying power the future balance may have in today's dollars. Inflation does not reduce the number of future dollars, but it can reduce what those dollars may buy.
No. The calculator assumes the entered rate remains unchanged and uses smooth mathematical growth. Actual savings rates, investment returns, fees, inflation, and taxes may differ, and investments can lose value.