Time to Goal: How many years and months of consistent saving and compounding it takes to reach your target balance. Shorter timelines require larger contributions or higher returns.
Total Contributions: The sum of your starting savings plus all monthly deposits over the saving period — the money that came directly from your pocket.
Interest Earned: The portion of your final balance generated by investment returns rather than deposits. This shows the power of compound growth over time.
"Never" result: If the tool says the goal is unreachable, your contribution and return rate together cannot overcome the gap. Try increasing monthly deposits or the assumed return.
How This Calculator Works
You enter a target amount, current savings, a monthly contribution, and an expected annual return rate. The tool simulates month-by-month compounding — each month the balance grows by the monthly rate, then the contribution is added. It counts months until the balance reaches or exceeds the goal. Returns are not guaranteed; the assumed rate is a planning input, not a forecast.
Quick Questions
What return rate should I use?
For a high-yield savings account, 4–5% APY is typical in 2024–2025. For a diversified stock index fund, historical long-term averages are roughly 7–10% nominal. Use a conservative estimate — actual returns vary year to year.
Does this account for inflation?
No. The result is in nominal (today's) dollars. To plan in real terms, subtract expected inflation (roughly 2–3%) from your assumed return rate before entering it.
Can I use this for an emergency fund?
Yes. Set your goal to 3–6 months of essential expenses, enter your current savings, and use a savings account rate. The result shows how long until you reach that safety cushion.
What if I can increase contributions over time?
This tool assumes a fixed monthly contribution. If you expect raises, run it again each year with an updated amount to see how your timeline shortens. Even small increases compound significantly over time.
Estimate only. Results reflect your inputs and standard formulas — they are not financial, tax, legal, health, or investment advice. Verify important decisions with a qualified professional.