Savings Goal Calculator

How to use this calculator

Start by entering the total amount you want to save. This is your target number. Next, add how much money you already have set aside for this goal. Then enter the annual percentage yield (APY) your savings account will earn. Finally, pick your deadline. The calculator works backward from your deadline to figure out exactly how much you need to deposit each month to reach your target.

What goes into this calculation

The calculator considers four key pieces of information. Your current balance matters because money you already have will continue earning interest, so you don't need to save quite as much. The APY you enter represents what your savings account will pay you each year. Your target amount is what you're working toward. The timeline is how many months you have to get there. These four pieces combine to show you the exact monthly deposit that will get you to your goal on schedule.

Why monthly contributions work better than lump sums

Saving consistently each month is easier for most people than trying to save one big chunk. Monthly deposits fit into your budget the same way bills do. Plus, each deposit you make starts earning interest right away through compound interest. If you deposit money in month one, it earns interest for all the months that follow. Money deposited in month six has less time to grow, but it still contributes. This is why breaking your goal into monthly chunks actually helps you reach it faster than waiting to save it all at once.

Real example: saving for a car down payment

Say you want to buy a car in two years and need a $10,000 down payment. You've got $2,000 already. Your savings account pays 4% APY. Plug these numbers into the calculator, and it tells you that you need to save about $330 per month. That $330 covers both your initial balance growing with interest and the monthly deposits. The math accounts for every penny of interest your current balance and future deposits will earn over those 24 months. When you hit month 24, you'll have exactly $10,000.

Understanding APY and how it affects your goal

APY stands for annual percentage yield. It's the percentage your money earns each year, including any compounding. High-yield savings accounts typically offer APY between 4% and 5% right now, while regular savings accounts might only offer 0.01%. The higher your APY, the less you need to deposit each month because your money works harder for you. Even a 1% difference adds up over time. If your savings account APY drops or rises, your required monthly contribution will change. This tool assumes your APY stays the same throughout your entire timeline, so if rates shift, you can run the calculation again.

Limitations and what this tool doesn't include

This calculator gives you a solid estimate, but it's not a guarantee. Real life is messier than math. Interest rates can change, and if your bank cuts the APY partway through, you might need to save more to hit your target. The calculator also doesn't account for taxes on your interest earnings (though savings accounts usually earn so little that this isn't a big deal) or any account fees your bank might charge. If you plan to withdraw money before your deadline, the calculation won't work anymore. Think of this as a helpful guide to show you what's realistic, not a promise about what will happen.

Adjusting your goal if needed

Once you know your required monthly savings, you might realize it's too high or too low. If it's too high, try extending your deadline by a few months or lowering your target amount slightly. Try it in the calculator to see how much difference even small changes make. If the monthly amount feels too small, you could bump up your target or shrink your timeline. Experiment with different scenarios. That's what this tool is for. You might find that saving an extra $50 per month only delays your goal by a month, which could be worth it.

Related: How to choose a savings account, APY, and Compound Interest Calculator.