Project how a savings balance grows from regular contributions and compounding — and estimate when you'd reach a deposit goal.

What this calculator estimates

This tool projects where a savings balance lands over time, given what you start with, what you add each week, fortnight or month, and an indicative interest rate compounded monthly. Enter the numbers above and you'll see three things: the balance at the end of your time frame, the total you actually contributed, and the interest earned on top. Set a goal — a house deposit, say — and it also estimates how long it would take to get there at your current pace.

What drives the number

Two levers do most of the work, and they aren't equal. Over short horizons your contribution is what moves the balance; the interest rate barely registers. Over longer horizons, compounding starts to compound — the interest earns interest — and small differences in rate and time frame open up. That's why the same goal can be reached years sooner by lifting the regular amount rather than chasing a slightly higher rate. The calculator deliberately ignores tax on interest and any account fees, so treat the projection as an upper guide, not a promise.

Use it as a starting point

If you're saving toward a deposit, the balance is only half the story. How the savings are held, and how genuine savings are evidenced, can matter to a lender as much as the figure itself — and that's a policy question that differs from one lender to the next. Book a strategy session and we'll map your savings plan to the lenders whose rules actually fit it.

General information only — not personal financial product or credit advice. The estimate is indicative; savings rates move and are not guaranteed, and your actual position depends on each lender's policy, current rates and your full circumstances. AeFin is an Australian Credit Representative (CR 464548) of Finsure (ACL 384704).