How the Savings Goal Calculator works
A savings goal becomes actionable when it has an amount, deadline, starting balance, and recurring contribution. This tool grows current savings and solves for the monthly deposit needed to close the remaining gap.
Method: The future-value-of-an-annuity formula solves for the monthly contribution after accounting for current savings and estimated return.
Inputs to review
- Savings goal: Use a realistic current value and test a conservative alternative.
- Current savings: Use a realistic current value and test a conservative alternative.
- Estimated annual return: Use a realistic current value and test a conservative alternative.
- Time to goal: Use a realistic current value and test a conservative alternative.
How to interpret the result
Use a conservative return for short-term goals because market losses near the deadline can be damaging. If the required deposit is unrealistic, extend the date, lower the goal, or identify a larger recurring contribution.
Assumptions and limitations
Returns are not guaranteed, deposits are assumed at month-end, and the estimate excludes taxes, fees, and changing contribution amounts.
Recalculate when rates, balances, income, goals, or time horizons change. A useful estimate is a range built from several plausible scenarios, not a single precise-looking number.