Fidelity Money Market Calculator

Fidelity Money Market accounts are designed for investors who want liquidity with competitive yields. This calculator helps you estimate your potential returns, account growth, and the impact of fees over time.

What is Fidelity Money Market?

Fidelity Money Market accounts are short-term investment accounts that offer FDIC insurance up to $250,000 per account owner. These accounts typically pay higher interest rates than traditional savings accounts and provide easy access to your funds.

The key features of Fidelity Money Market accounts include:

Competitive annual percentage yield (APY)
FDIC insurance protection
No monthly maintenance fees
Easy access to funds (typically within 24 hours)
Online account management

Note: Actual yields and fees may vary based on your account balance and Fidelity's current offerings. This calculator uses estimated values for illustrative purposes.

How to Use This Calculator

To use the Fidelity Money Market Calculator:

Enter your initial deposit amount
Select your estimated annual percentage yield (APY)
Enter your estimated monthly fee (if any)
Choose the investment period in years
Click "Calculate" to see your projected balance

The calculator will display your projected balance after the selected period, showing the impact of compounding interest and fees.

Key Formulas

The calculator uses the following formulas to estimate your money market account growth:

Future Value with Compounding Interest:

FV = P × (1 + r/n)^(nt)

Where:

FV = Future Value
P = Principal amount (initial deposit)
r = Annual interest rate (APY)
n = Number of times interest is compounded per year (typically 12 for monthly compounding)
t = Time in years

Total Fees Over Period:

Total Fees = Monthly Fee × 12 × t

Where:

Monthly Fee = Estimated monthly fee
t = Time in years

Net Future Value:

Net FV = FV - Total Fees

Example Calculation

Let's say you deposit $5,000 into a Fidelity Money Market account with a 2.10% APY and a $1 monthly fee. Here's how the calculation works over 5 years:

Future Value: $5,000 × (1 + 0.021/12)^(12×5) ≈ $5,530.64
Total Fees: $1 × 12 × 5 = $60
Net Future Value: $5,530.64 - $60 = $5,470.64

After 5 years, you would have approximately $5,470.64 in your account, accounting for both the interest earned and fees paid.

Frequently Asked Questions

What is the difference between APY and APR?: APY (Annual Percentage Yield) is the real rate of return considering compounding interest, while APR (Annual Percentage Rate) is the stated interest rate before compounding. APY is always higher than APR.
Are Fidelity Money Market accounts FDIC-insured?: Yes, Fidelity Money Market accounts are FDIC-insured up to $250,000 per account owner, just like traditional savings accounts.
How long does it take to access my money in a Fidelity Money Market account?: Fidelity typically processes withdrawals within 24 hours, though exact timing may vary based on your account type and Fidelity's processing schedule.
Are there any fees associated with Fidelity Money Market accounts?: Fidelity Money Market accounts generally do not have monthly maintenance fees, but there may be other fees depending on your account type and balance.
Can I transfer money from my Fidelity Money Market account to other accounts?: Yes, you can transfer money between your Fidelity accounts, though there may be timing restrictions depending on your account type.