Money Market Calculator

Calculate interest earned and final balance on a money market account. Compare your earnings against a regular savings account to see the benefit of higher APY rates.

Money Market Interest Calculator

How Money Market Accounts Work

A money market account (MMA) is a type of savings account offered by banks and credit unions that typically pays higher interest rates than regular savings accounts. MMAs often require a higher minimum balance but provide FDIC insurance up to $250,000.

Compound Interest Formula

A = P × (1 + r/n)^(n×t) Where: A = Final balance P = Principal (initial deposit) r = Annual interest rate (decimal) n = Compounding periods per year t = Time in years Interest Earned = A - P

Money Market vs. Regular Savings

FeatureMoney MarketRegular Savings
Typical APY3.5% – 5.5%0.1% – 0.6%
Minimum Balance$1,000 – $10,000$0 – $300
FDIC InsuredYes (up to $250K)Yes (up to $250K)
Check WritingSometimesNo
Debit CardSometimesNo

Frequently Asked Questions

What is APY?+
APY (Annual Percentage Yield) is the effective annual rate of return taking into account the effect of compounding interest. A higher APY means more earnings on your deposit.
Is a money market account safe?+
Yes. Money market accounts at FDIC-insured banks are protected up to $250,000 per depositor. They are not the same as money market funds, which are not FDIC-insured.
How often does a money market account compound?+
Most money market accounts compound daily or monthly. Daily compounding provides slightly more interest than monthly. Use the compounding frequency selector above to model your specific account.

About the Money Market Calculator

This free money market calculator helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.

How to Use This Calculator

  1. Enter your values in the input fields above. Each field is labeled to guide you.
  2. Double-check your inputs — results are only as accurate as the numbers you enter.
  3. Click the Calculate button to see your result instantly.
  4. Use the result for your planning, budgeting, or decision-making.

Why Accurate Calculations Matter

Small errors in financial calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.

Tips for Getting the Best Results

Frequently Asked Questions

Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.

How accurate are the results? This calculator uses the standard formulas for money market calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.

Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.