See exactly when you hit your goal.
Enter what you are saving for, what you have set aside so far, how much you add each month, and the return you expect. This calculator finds the smallest number of months where your balance, plus compound growth, crosses the finish line, then shows the interest that got you there.
Your goal
Use a high-yield savings rate for short goals, or a conservative investment return for longer ones. Set the return to 0 to ignore growth entirely.
What this means
Your balance climbing toward the goal
Milestones
Year by year
| Year | Contributed | Interest earned | Balance | Of goal |
|---|
Reaching your savings goal, explained
How the time-to-goal math works
Reaching a savings target depends on four numbers: how much you have now, how much you add each month, the return you earn, and the finish line itself. Each month your balance grows by the monthly return rate, which is the annual return divided by 12, and then your contribution is added on top. This calculator steps forward month by month and reports the first month where your balance, current savings compounded plus every contribution and its growth, reaches or passes the goal. With a 0% return the answer is simple arithmetic: the gap between your goal and current savings divided by your monthly contribution. With any positive return, compounding shortens the timeline, and the closer you get, the faster the balance rises because interest is now earning interest.
Why the last stretch is the fastest
Compound growth is not a straight line. Early on, your balance is small, so the return it earns is small, and most of your progress comes from the cash you deposit. As the balance builds, the monthly interest grows until it becomes a real force of its own. That is why the balance curve bends upward and the final months to your goal often pass quicker than the first ones. It also explains why starting early matters more than saving a large amount later: time in the account lets compounding do work that contributions alone cannot. If your goal feels far away, resist the urge to quit in the slow early phase, that is exactly when consistency pays off most.
Common questions
How does this calculator find the time to reach my goal?
It converts your annual return to a monthly rate, then steps forward one month at a time, growing your balance by that rate and adding your contribution. It reports the first month where the balance reaches or passes your goal. With a 0% return it simply divides the amount still needed by your monthly contribution.
What return rate should I use?
Match the rate to your timeline. For a short goal you plan to reach in a year or two, a high-yield savings account rate of 4% to 5% is realistic and safe. For a goal many years out, a diversified investment return of 6% to 7% is a common long-term assumption, but it carries market risk and is not guaranteed.
Why does a higher contribution help more than a higher rate at first?
Early on your balance is small, so even a good return earns little. Your monthly deposit is the main driver of progress in the first stretch. Rate matters more as the balance grows and compounding takes over, which is why long goals lean on returns and short goals lean on contributions.
What if the calculator says my goal is unreachable?
That happens when your monthly contribution is zero, or negative growth cannot close the gap in a reasonable time. Increase the monthly amount, raise your starting balance, or extend how long you are willing to save. Even a small automatic transfer changes an impossible goal into a dated one.
Should I keep goal money in savings or investments?
For goals within about three years, a high-yield savings account or certificate protects the money from market swings. For goals five or more years out, investing can earn a higher return, but you accept the risk of short-term losses. Keep an emergency fund of 3 to 6 months of expenses separate from any specific savings goal.
Does this account for taxes or inflation?
No. The estimate assumes your return compounds monthly at the rate you enter, with no tax on interest and no adjustment for rising prices. For a long goal, consider using a slightly higher target or a conservative return so inflation does not erode your buying power by the time you arrive.
Estimates for planning only. Returns are not guaranteed and change over time. Interest is assumed to compound monthly at the rate you enter; your bank or fund may compound differently. This is not financial advice. Use conservative numbers and revisit your plan as your situation changes.