Project your savings with regular deposits and interest. Free, private, and runs entirely in your browser.
The balance compounds monthly. Your initial deposit grows by the monthly rate, and each deposit is added at the end of every month.
How much should I save each month? A common target is 15–20% of income, but any steady amount compounds over time.
Is the interest rate guaranteed? No. Savings account rates change; treat the result as an estimate.
Starting with $1,000 and adding $200 per month at 4.5% for 10 years grows to about $31,807. Contributions total $25,000, so roughly $6,807 comes from interest.
How often does interest compound? Many accounts compound daily or monthly; this calculator uses monthly compounding.
Does more frequent compounding matter? Slightly: at the same rate, more frequent compounding earns a little more interest.