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Savings Goal Calculator

Whether it is a house deposit, a new laptop or a year of emergency savings, the question is the same: how much do I need to put away, and for how long? Enter your goal, what you have now, the deadline and an expected interest rate. The calculator shows the monthly and per-paycheck amount required, and also how long the goal will take if you can only save a fixed amount.

The math behind the calculator

When your savings earn interest, each deposit grows a little from the month it is made. The calculator first grows what you have already saved over the full period, then works out the regular monthly deposit that, with interest, closes the remaining gap. This is the standard future-value-of-an-annuity formula:

monthly deposit = (goal − current × (1+i)^n) × i ÷ ((1+i)^n − 1)

where i is the annual rate divided by 12 and n is the number of months. With a 0% rate it simplifies to the goal gap divided by the months. The second calculation runs the other way: it adds your fixed monthly amount and interest month by month until the balance reaches the goal.

Interest rates change and the rate you enter is an assumption. For short goals (under two years) the interest makes only a small difference, so it is safer to plan with a conservative rate or zero. For long goals, the rate matters more and you should be realistic about what a savings account, not an investment, actually pays.

Setting a goal that sticks

Vague goals ("save more") rarely survive a busy month. Specific ones do. A good savings goal has:

• An amount based on a real price or quote, not a round number.
• A date you care about: the lease ending, a trip, a wedding.
• A home: a separate account or bucket, so progress is visible.
• An automatic transfer scheduled for payday.

If you have several goals, run the calculator for each and add the monthly results. If the total is too high, rank the goals and stretch the deadlines of the less urgent ones rather than cutting all of them a little.

Which goal comes first?

A widely used order of priorities, offered by many consumer finance educators such as the U.S. Consumer Financial Protection Bureau, is to build a small emergency cushion first, then deal with high-interest debt, then save for larger goals. The reason is arithmetic: if a credit card charges far more interest than your savings account earns, paying the card down is a better "return" than saving. Our debt payoff calculator shows the trade-off for your own balances. Once the basics are covered, you can save for several goals at once.

Saving with irregular income

If your income varies (freelance, commission, tips or a side hustle), a fixed monthly transfer may not be realistic. Two methods work better:

1. Percentage saving: move a set percentage of every payment you receive, for example 10%, into savings. Good months then automatically save more.
2. Baseline + top-up: save a small fixed amount you can manage in your worst month, then top up in good months. Use the calculator's "I can save per month" box with the baseline to see the slowest-case timeline.

For more on this, read our guide to budgeting on an irregular income.

Finding the money to save

The monthly amount has to come from somewhere. The most effective places to look are usually the biggest recurring costs rather than small daily ones: housing, transport, insurance, phone and internet plans, and subscriptions. A single renegotiated bill can fund a savings goal for years. A 50/30/20 budget is a quick way to see whether your wants are crowding out your savings.

Tracking progress

A one-line spreadsheet is enough: goal, target date, target amount, current balance, and a progress column (=D2/C2). Update the balance once a month. Seeing the percentage rise is surprisingly motivating, and it shows early if you are falling behind. If you also track your total financial position, add the savings balance to a net worth calculation each month.

Example

With the example numbers above (a $10,000 goal, $1,500 already saved, 24 months and an assumed 3.5% rate), the required deposit is a little over $290 a month. Saving $300 a month reaches the goal in about two years, and interest contributes a few hundred dollars. These are illustrative numbers only; your result depends on the rate you actually earn.

Quick checklist for a new goal

1. Get a real price or quote for what you are saving for.
2. Pick a date that matters to you and count the months.
3. Open a separate savings bucket and name it after the goal.
4. Enter the numbers above, then schedule the monthly or per-paycheck transfer.
5. Decide in advance what happens to windfalls such as a tax refund or bonus: a share to the goal shortens the timeline considerably.
6. Review once a month and re-run the calculator if your balance or date changes.

When the required amount looks impossible

If the monthly figure is far beyond what you can save, do not abandon the goal; change one input at a time. Extending the deadline is usually the easiest lever. Lowering the target, for example a smaller deposit or a cheaper model, is the second. Increasing income through overtime, a raise or a side hustle is the third. Run each scenario and pick the combination that feels sustainable, because a plan you keep for two years beats an ambitious one you drop after two months.

FAQ

How much should I save each month?

Divide the amount you still need by the months until your deadline. If your savings earn interest, the required amount is slightly lower; this calculator includes that.

Does interest make a big difference?

For goals under two years, usually only a little. For long goals it matters more. Use a conservative rate because savings rates change.

Should I save or pay off debt first?

Many educators recommend a small emergency fund first, then high-interest debt, because the interest you pay on a card is usually far higher than what savings earn.

Can I use this for an emergency fund?

Yes. Set the goal to the number of months of essential expenses you want to cover, and choose a realistic deadline.

Is anything stored?

No. Everything is calculated locally in your browser.

For general education and planning only. Not financial, tax or legal advice. Check important decisions with a qualified professional.