Estimate how an initial balance may grow through compounding and recurring contributions. Enter the starting amount, interest rate, contribution schedule, and investment horizon to compare total contributions with projected interest earned.
The chart and year-by-year table make the assumptions visible so you can compare scenarios instead of relying on a single future value. Results are mathematical estimates, not investment, tax, or financial advice; actual returns, fees, taxes, and rate changes can produce different outcomes.
Compounding frequency controls how often earned interest is added to the balance. Monthly compounding applies the annual rate in twelve periods, while annual compounding applies it once per year. More frequent compounding can increase the projected total, although the difference may be small at lower rates or shorter time horizons.
Recurring contributions are modeled separately from the starting principal. To compare plans fairly, keep the contribution timing and compounding assumptions consistent, then change one input at a time. Compare a conservative rate with a higher-rate scenario instead of treating either projection as guaranteed.
Inflation reduces future purchasing power, and account fees or taxes can reduce realized growth. Use the nominal result to check the calculator’s arithmetic, then consider those real-world costs when using the projection for a savings goal. Revisit the inputs when the contribution amount, expected rate, or target date changes.
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