That 1% fee isn't small. Enter an amount, return and two expense ratios to see the exact dollars a higher fund fee strips from your portfolio over the years — and what share of your wealth it costs.
Answer first: a fund's expense ratio is skimmed off your return every single year, so a fee that looks tiny compounds into an enormous gap over decades. This expense ratio impact calculator grows the same investment at two different fee levels and shows exactly how many dollars the higher fee quietly costs you.
Net return = Gross return − Expense ratio, compounded for the full holding period.
Example: $10,000 at a 7% gross return for 30 years grows to $75,273 in a 0.04% fund but only $57,435 in a 1.00% fund. That nearly-1% fee difference costs $17,838 — about 24% of the wealth you'd otherwise have.
This is the most underrated number in investing. A 1% fee doesn't cost you 1% — it costs you 1% of a balance that compounds, year after year, for your entire investing life. The fee comes out whether the fund goes up or down, so it's a guaranteed drag against an uncertain return.
Decades of data show that most actively managed funds fail to beat their benchmark after fees, and the high fee is a big reason why. When you buy a low-cost index fund, you lock in the market's return minus almost nothing — and as this calculator makes painfully clear, "almost nothing" is worth tens of thousands of dollars over a lifetime. Fees are the one variable you fully control.
Reality check: It assumes a constant gross return and a one-time lump sum, and ignores taxes, trading costs, sales loads and the fact that returns are never smooth. It is for illustration, not a forecast. This is an educational calculator, not financial advice — verify your own numbers and see the U.S. SEC at investor.gov.
Learn the concept in what is an expense ratio, compare fund types in ETF vs mutual fund, and see fee-free growth on the compound interest calculator.
Last updated 21 June 2026 · Written by Mustafa Bilgic. Educational only — not financial advice.
The expense ratio is subtracted from your gross return every year, so your net return is lower by exactly that amount annually. Because it compounds, even a small fee snowballs into a large dollar gap over decades.
Yes. A 1% expense ratio is considered expensive today. Broad index funds and ETFs often charge under 0.10%, and over a 30-year horizon the difference between 0.04% and 1% can erase roughly a quarter of your final balance.
Under 0.10% is excellent and typical of broad index funds. Up to about 0.50% can be reasonable for specialized funds. Above 0.50%–1% is expensive and hard to justify, since few active funds beat their benchmark after fees.
Because the fee is a guaranteed drag while outperformance is not. Most active funds fail to beat their benchmark after fees, so locking in the market return minus a tiny cost beats paying more for an uncertain edge.