ETF expense ratios are annual fees that silently erode your returns. A 1% expense ratio on a $50,000 portfolio costs roughly $30,000+ over 20 years — not just the 1% fee, but all the compounded growth that money could have earned. This calculator shows the true 20-year cost of different expense ratios and compares two funds side-by-side.
Investment Parameters
Fund A (Low Cost)
e.g., VTI 0.03%, FXAIX 0.015%
Fund B (Higher Cost)
e.g., actively managed ~0.75%–1.5%
Year-by-Year Fee Drag Comparison
| Year | Fund A Balance | Fund B Balance | Difference |
|---|
How to Use the ETF Expense Ratio Impact Calculator
Expense ratios are one of the biggest controllable factors in long-term investing. This calculator shows you exactly how much different expense ratios cost in real dollars over your investment horizon, and compares two funds side-by-side so you can make informed decisions.
Step 1: Enter Your Investment Details
Enter your initial investment amount, annual contribution (how much you add each year), how many years you plan to hold, and the expected annual return before fees. The default 7% return is a common estimate for diversified equity portfolios based on long-term historical averages.
Step 2: Compare Two Expense Ratios
Enter the expense ratio for Fund A (your lower-cost option) and Fund B (higher-cost). For reference, broad market index ETFs like VTI charge 0.03%, while actively managed funds often charge 0.75%–1.50%. The calculator shows how even a 0.72% difference compounds into tens of thousands of dollars over 20 years.
Step 3: Review the 20-Year Impact
The results show final balances for both funds and the total dollar amount you keep by choosing the lower-cost option. The year-by-year table reveals how the gap widens over time — in early years it is small, but by year 20 the difference can represent years of contributions.
The Compounding Cost Effect
The fee drag is worse than just the annual percentage because the fee also reduces the base on which future returns compound. A 1% expense ratio on a $100,000 portfolio costs $1,000 in year one, but that $1,000 also loses all future growth it would have generated. Over 20 years at 7% returns, each $1,000 in fees costs roughly $3,870 in future value — nearly a 4x multiplier on the stated fee.
FAQ
Is this ETF expense ratio calculator free?
Yes, completely free with no signup required. All calculations run in your browser.
What is an expense ratio?
An expense ratio is the annual fee a fund charges as a percentage of your assets. A 0.03% expense ratio means you pay $3 per year for every $10,000 invested. This fee is automatically deducted from the fund's returns, not billed separately. Over decades, even small differences compound into significant wealth differences.
How much does a 1% expense ratio cost over 20 years?
On a $10,000 initial investment growing at 7% annually, a 1% expense ratio costs approximately $14,000 over 20 years compared to a 0.05% expense ratio fund. The fee doesn't just cost the fee amount — it also costs the compounded growth that money would have generated.
What is a good ETF expense ratio?
For broad market index ETFs, expense ratios below 0.10% are excellent. Popular index ETFs like VTI charge 0.03%, SPY charges 0.09%. Actively managed funds typically charge 0.50%–1.50%. As a rule of thumb, avoid any fund with an expense ratio above 0.50% without a compelling reason — the fee drag over decades is substantial.
Does the expense ratio come out of returns?
Yes. The expense ratio is deducted daily from the fund's assets, which reduces the fund's NAV (net asset value) before you even see your return. If a fund earns 7.00% gross but charges 0.50%, you receive 6.50% net. The fee is invisible in your account — you never see a separate charge.