Enter your goal, current savings, months, and expected annual rate to get the exact monthly deposit that hits your target on time.
All calculations happen locally in your browser. Nothing leaves your device.
Assumes a constant annual rate compounded monthly and no fees or taxes. A planning estimate, not financial advice.
Instead of guessing, this tool does the arithmetic for you. It takes your goal, what you already have, the number of months you have, and an expected annual return — then works out the single monthly amount that lands exactly on your goal on time, with interest doing part of the work.
The tool works month by month with compound growth. Each month your balance grows by the monthly interest (annual rate ÷ 100 ÷ 12) and then you add a fixed amount x. The smallest x that brings the balance to at least your goal after the exact number of months is reported. The result is verified by simulating every single month, so what you see is the real trajectory of your savings.
It is the amount your savings earn over the whole period, assuming the stated annual rate is constant. Your final balance equals what you already have plus everything you deposit plus the interest earned on the way. A higher rate or a longer horizon turns more of the goal into interest instead of deposits.
If your current savings already meet or exceed the goal, the calculator shows $0.00 per month — the goal is effectively already reached. Lower the goal, or keep the numbers to see how interest alone would grow what you already have.
No. The calculation is a clean mathematical model: a fixed monthly deposit plus a constant annual return. Account fees, taxes on interest, contribution limits and inflation are not modeled — use the result as a planning estimate and adjust for your real account terms.
The math is exact for the inputs you give: monthly compounding, fixed deposit, constant rate. Real results vary with compounding conventions (some accounts compound daily or annually), changing rates, fees and taxes. This tool is a planning aid, not financial advice — the numbers are estimates based on the assumptions you enter.
If you just finished with Savings Goal Calculator, the natural next steps are Compound Interest Calculator, Countdown Timer, FIRE Retirement Calculator, or browse every tool in Cross-border Finance.