How it works
A goal projection connects a target amount with current assets, a schedule and a return assumption. The default question solves for recurring contributions after first growing the current balance to the end date.
The formula
Keep currency, units and time periods consistent. Percentage inputs use percentage points (enter 5 for 5%). Results are rounded only for display; tiny nonzero values may use scientific notation. Undefined ratios are shown as unavailable.
For a $100,000 goal in ten years, $10,000 current balance and 7% nominal annual return with month-end deposits, the required monthly contribution is $461.64 (unrounded total deposits $55,397.16).
Calculation method
Contribution frequency also sets compounding frequency in this goal model. The annual nominal rate is divided by that frequency. Beginning-of-period deposits grow for an extra period compared with end-of-period deposits.
Interpretation
Time mode searches completed contribution periods over a maximum of 100 years. Required-return mode uses bisection bounded from −99.9% to 1,000% nominal annual return. A missing solution inside those bounds is reported explicitly rather than replaced with a guessed rate.
Limitations
Required return is a mathematical hurdle, not a forecast or an available product yield. If current assets already reach the target, the tool states that the goal is reached now; a negative-rate future scenario can still show erosion. Compare several assumptions before using a plan.
Method and reference sources
Method and content checked 2026-09-20. These sources provide background, not endorsement or professional certification. The formula and limitations above define this calculator.
- Investor.gov — Savings Goal CalculatorSavings targets, starting balances and regular contributions under an assumed return.
- Investor.gov — Understanding FeesInvestment fee and compounding context; enter the terms of your fund or account.
Frequently asked questions
Why might a goal have no feasible solution?
A contribution, time or return constraint can prevent the target being reached within the modeled range. Review the assumptions rather than treating an unavailable result as zero.
What is a worked example for Investment Goal?
For a $100,000 goal in ten years, $10,000 current balance and 7% nominal annual return with month-end deposits, the required monthly contribution is $461.64 (unrounded total deposits $55,397.16).