🏦 Money Market Account Calculator
Estimate how your money market account balance could grow based on your deposit, interest rate, and monthly additions.
How a money market account grows
A money market account (MMA) is a type of savings account that typically pays a variable Annual Percentage Yield (APY) and often compounds interest daily or monthly. Interest is calculated on your balance and added back in, so future interest is earned on both your original deposit and previously credited interest.
How this calculator works
Enter your initial deposit, the APY your account offers, how much you plan to add each month, how long you’ll keep the money in the account, and how often interest compounds. The calculator applies each period’s interest rate to the running balance and adds your monthly contributions, then totals the result over the full time span.
Actual APYs on money market accounts are variable and can change at any time based on market conditions, so treat this as a general estimate for planning and educational purposes rather than a guaranteed outcome. It does not account for minimum balance requirements, fees, or taxes.