Savings Goal Calculator

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How it works

Your goal is funded from three places: the money you already saved, your monthly deposits, and the interest both earn. This savings goal calculator finds how much your balance grows on its own, then the deposit that fills the gap.

Most savings accounts credit interest monthly, which is what it assumes, with deposits at month-end:

M = ( G − P(1+i)ⁿ ) × i / ( (1+i)ⁿ − 1 )

M — the monthly deposit you’re solving for
G — your goal
P — what you’ve already saved
i — monthly interest rate (annual rate ÷ 12)
n — number of months

With the defaults above, $5,000 grows to about $6,105 on its own over 5 years at 4%, leaving $18,895 for your deposits to cover. The monthly amount that gets there, deposits plus the interest they earn, is about $285 a month.

Of that $25,000 goal, roughly $2,900 arrives as interest you never had to save. That share is the part your savings account funds for you, and it rises with the annual percentage yield (APY) the bank pays.

Interest you leave in the account earns interest of its own, which is compounding. That effect is small over a year or two, and it does more of the work as the term stretches out.

Every result is checked against independent reference math. See how we test the calculators →

A worked example: $25,000 in five years

Say you want $25,000 for a home down payment in five years, and you already have $5,000 set aside earning 4%. What does it take each month? The calculator says $285.

Your $5,000 head start quietly grows to $6,105 on its own, so your deposits only have to cover the rest. Over the five years those deposits add up to $17,100, and the interest they earn chips in another $2,900, landing you right at $25,000.

Where you keep the money moves the deposit a lot. Park it in cash at 0% and you would need $333 a month. Move it into index funds earning 7% and it drops to $250 for the very same goal.

Enter your own target, timeline, and rate to see your monthly number.

How to use this calculator

Enter your goal: the full amount you want, at today's price.
Add what you have already saved, so it solves only for the gap.
Set the deadline in months or years.
Enter the annual rate your savings account pays, or 0% if it pays nothing.
Read the monthly deposit, then stretch the deadline until the figure fits your budget.

Ways to hit your savings goal sooner

Small changes to the inputs move the monthly deposit more than most people expect.

Start now, not at a round date. Waiting a year pushes the monthly cost from $285 to about $365, a 28% increase.
Automate the transfer on payday. Money that leaves your checking account before you see it beats saving what is left.
Match the account to the timeline. A high-yield savings account pays a real annual percentage yield without risking cash you need soon.
Put a bonus or tax refund straight into the balance. That one deposit cuts months off the goal, and the monthly amount you still need drops with it.
Round the deposit up to the nearest $25. The extra is small enough to ignore in your budget, and it still pulls the finish date forward.
Raise the deposit when your income rises, since the rest of your budget is unchanged.
Name the savings account after the target. A labelled account gets spent less often than one holding all your spare cash.

What does the monthly deposit assume?

A few real-world details sit outside the formula.

It ignores inflation. Your target is today's price, so for a goal years away, nudge it toward the future cost.
It assumes you never miss a month. Every skipped payment gets made up later at a higher monthly deposit.
It assumes deposits land at month-end. Paying in on the 1st earns a little more interest, though over a few years the difference stays small.
It holds a single rate for the whole term. Banks and credit unions reprice these accounts when rates move, so check yours yearly.
It ignores tax. Interest from an ordinary savings account is taxable in the year you earn it, while money inside a Roth IRA is not.
Returns are not guaranteed. An investment held for growth swings up and down, so leave a margin and revisit the goal yearly.

Where should you keep the money for your goal?

The right account depends on the timeline, and safety matters more as the deadline gets closer.

Under two years, stay safe and liquid. A plain savings account and short certificates of deposit (CDs) protect cash you are about to spend, including a mortgage down payment.
Two to five years is a middle ground. Some savers keep the money in the bank, others invest a conservative mix of mutual funds and accept small swings.
Five years or more, markets can help. Low-cost ETFs and index funds often beat what these accounts pay, and that investment risk eases over time.
Splitting the goal across two accounts is fine. Keep the part you need soon in cash, and let the rest sit in an investment you will not touch for years.
For a retirement goal, use an individual retirement account (IRA). A Roth IRA grows tax-free, while a traditional IRA gives tax deductions now and taxes the money later. Most IRAs hold mutual funds or a cash balance, so the account is not the investment.
Compare more than the headline rate. Money market accounts and CDs quote yield differently, and a money market account usually needs a higher balance.
The protection differs too. Money in a bank or credit union carries deposit insurance per depositor, which the FDIC explains in plain terms. That insurance applies to banking only, and SIPC covers a broker failing, not market losses.

Save for the goal or pay down debt first?

Doing both at once is normal, because loans and savings come out of the same budget. Lenders charge more than banks pay, so the rate on the debt sets the order.

Clear expensive balances first. A credit card often charges more than any savings account pays, so paying it down earns a guaranteed return.
Send spare money where the rate is highest. Anything charging more than your account pays gets the extra, and the goal takes what is left.
Keep a small cash buffer anyway. Without it the next surprise goes back on the credit card or onto new loans.
Never miss a minimum payment. Every lender reports to the credit bureaus, and payment history is the biggest part of your credit score.
Read your credit report twice a year. Identity theft shows up there first, and a fraudulent credit card can dent the credit you are building.
Be careful borrowing against the house. Home equity loans and a HELOC look cheap, but a home equity line of credit is secured on your home.
Shop the rate with two or three lenders. A credit union often charges less than a big bank for the same credit score, freeing money for the goal.

When financial advisors are worth the fee

Financial advisors earn their fee when your finance questions get complex, but how they are paid shapes the advice. Fee-only advisers charge a flat rate, others take a percentage of your assets under management or a commission on each sale.

Each model carries its own conflict of interest, so ask two questions before signing: are you a fiduciary, and how do you get paid? FINRA, the regulator for brokers, lets consumers check an adviser's record free through BrokerCheck.

For one savings goal you rarely need paid advice. An adviser earns the fee on mortgage, tax and estate questions, not on which savings account to open or which funds go inside a Roth IRA. The CFPB publishes plain guides on personal finance basics for consumers.

What is a realistic savings goal for a year?

A useful start is the share of take-home income you can move without breaking the rest of your budget. Common advice puts that at 10% to 20% of income a year.

The honest answer is whatever survives twelve months in a row. Put the full amount in the goal field, read the monthly cost, then stretch the deadline until it fits.

Whether $50,000 by 25 is good depends on your debt and credit score, not a round number. One month of expenses in a savings account is a realistic first year, and a full emergency fund can wait.

A named sinking fund for car repairs is easier to keep up than one savings account holding every goal.

Common questions

What is the $27.39 rule?

$27.39 a day is what it takes to reach $10,000 in a year, because $10,000 divided by 365 days is $27.39. It is a framing trick, since the same goal is about $833 a month. Try the daily amount you need if the smaller number keeps you going.

What is the 50/30/20 rule for savings?

It splits take-home income three ways: 50% for needs, 30% for wants, and 20% for your savings account and debt payments above the minimum. Run your monthly deposit against that 20%. A goal that needs more is not wrong, but something in the budget has to give.

Do most Americans have $10,000 in savings?

Survey figures move a lot by year and method, so treat any single number with care. The more useful question is how long the money in your savings account would last if your pay stopped. Work out how many months your savings cover before judging yourself against an average.

How much do I need to save each week to reach $5,000 in three months?

Three months is about 13 weeks, so roughly $385 a week, or about $1,667 a month. Interest barely registers over three months, even in a high-yield savings account, so treat it as arithmetic. The weekly amount you need handles short timelines directly.

What return should I assume?

Use a low estimate, because arriving early beats arriving short. Try 0% for cash, around 4% for a high-yield savings account or CDs, and around 7% for a diversified investment in index funds held for years. Any single stretch can sit well above or below that long-run average.

Does this account for inflation?

No. The result matches current prices only if your target does. For long timelines, raise the target toward the future price.

Or use a lower real return, say 4-5% instead of 7% for stocks, so the money keeps its purchasing power.

Sources & further reading

CFPB, Consumer tools: guides on saving and setting money goals
FDIC, Deposit insurance: how savings are protected at insured banks
MyMoney.gov (U.S. government): federal financial-education hub

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