
ETF vs Mutual Fund: Which Is Better for Beginners? Explore costs, tax implications, and trading flexibility for informed investment decisions.
Name a target and a deadline, and we will tell you the monthly deposit that gets you there. Enter what you already have set aside and your expected return, then press Calculate.
Written by TopicDrill Editorial Team·Updated June 2026
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Instead of guessing how much you might accumulate, this tool starts from the result you want. You enter the target amount, the time you have, your expected annual return and any savings you already hold. It then grows your existing balance forward, subtracts that from the goal, and solves for the level monthly deposit that fills the rest.
The chart traces your projected balance year by year against a dashed line for the cash you actually deposit, with a marker showing the goal. The widening gap between the two curves is the compounding return doing part of the work for you.
Imagine you want 50,000 for a home deposit in 10 years, you already have 5,000 set aside, and you expect a 6 percent return. The tool finds that your starting balance grows to about 9,100 on its own, so monthly deposits of roughly 250 cover the remaining gap. Of the final 50,000, a meaningful slice is growth rather than money you put in.
Returns are never guaranteed, so revisit the plan once a year and adjust your deposit if markets or your timeline shift. For practical goal setting and emergency fund guidance from a neutral source, see the CFPB. Once your money is invested and growing, our future value calculator can project where a fixed contribution ends up.
You start from the end and work backwards. Decide the amount you need and the date you need it by, then the calculator solves for the steady monthly deposit that grows into that target at your expected return. It also folds in any money you have already saved so you only fund the gap.
Use a rate that matches where the money will sit. A high yield savings account or short term deposit might earn a few percent, while a diversified investment portfolio over many years has historically earned more but with ups and downs. Lower the rate if you cannot afford to miss the deadline.
If your current balance, after growing at the chosen return, already reaches or passes the target by the deadline, the required monthly deposit shows as zero. In that case you can stop adding new money, choose a sooner deadline, or set a larger goal.
A plain savings calculator tells you the future value of deposits you have already decided on. This tool flips the question around. You fix the destination and the date, and it tells you the contribution required to get there, which makes it far better for planning toward a specific milestone.

ETF vs Mutual Fund: Which Is Better for Beginners? Explore costs, tax implications, and trading flexibility for informed investment decisions.

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