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Mutual Fund Calculator

Fees look small on paper. Over 20 or 30 years they can cost you tens of thousands of dollars. This calculator shows you exactly what your expense ratio is taking, and what you could have instead.

Connecting Africa to Wall Street · Knowledge is Unction

Select a fund type to pre-fill the expense ratio

The Real Cost of Your Expense Ratio
Total fees paid
$0
Compounding opportunity lost
$0
Total wealth reduced by fees
$0
Mutual Fund Calculator Adjust sliders to see results instantly
Your investment
Initial investment $10,000
How much you are investing at the start
Monthly contribution $300
Additional amount you invest each month
Expected gross annual return 7.0%
S&P 500 historical average is around 10%. Use 6 to 8% for a conservative estimate
Investment period 20 years
How many years you plan to stay invested
Fund costs
Expense ratio (annual %) 1.00%
Found in the fund's prospectus or on your brokerage's fund detail page
Comparison
Compare against a low-cost index fund (0.03% expense ratio)
Your Net Balance (After Fees)
$0
Net of all expense ratio deductions
Without Any Fees
$0
Total Fees Paid
$0
Effective Net Return
0%
Your fund vs low-cost index fund alternative
Your Fund
$0
1.00% expense ratio
→
Index Fund Alternative
$0
0.03% expense ratio
By switching to a low-cost fund you could end up with $0 more
Gross return (no fees)
Your fund (net of fees)
Year Your Fund Balance No-Fee Balance Annual Fee Paid Cumulative Fees Fee Drag
How it works

Why a 1% fee is never just 1%

An expense ratio is deducted from your fund's returns every year before you see them. It is invisible in the sense that you never write a check, but the math is unforgiving. A 1% fee on a $10,000 portfolio is $100 in year one. But that $100 would have compounded. By year 30, the total cost is not just the fees paid but every dollar those fees could have grown into. That gap is what this calculator makes visible.

The comparison toggle above shows the same investment made in a fund charging 0.03% instead of 1%. The difference over 20 to 30 years is often larger than people expect, sometimes representing 15 to 25% of their final portfolio value given up to fees that produced no additional return.

What an expense ratio covers
Fund management salaries, research costs, administrative expenses, and marketing. Index funds skip most of this because no one is picking stocks. The savings go directly to you.
Active vs passive performance
Decades of academic research show that most actively managed funds underperform their benchmark index after fees over long periods. Paying more for management rarely delivers better net returns.
How to find your expense ratio
Look in your fund's prospectus, on your brokerage's fund detail page, or search the fund ticker followed by "expense ratio." It is also listed on sites like Morningstar and ETF.com.
Real-world expense ratio examples
Fund Type Typical Expense Ratio $100K over 30 years Fee Cost vs Index
Passive Index (VOO, IVV)0.03%~$752,000Baseline
Low-Cost Active Fund0.50%~$686,000-$66,000
Average Active Fund1.00%~$624,000-$128,000
High-Cost Active Fund1.50%~$568,000-$184,000
Why this matters for first-generation investors

The index fund revolution is the most accessible wealth tool in history

For the African diaspora investor especially, the rise of ultra-low-cost index funds is significant. A generation ago, getting access to diversified stock market returns required advisors, commissions, and minimum investment thresholds that excluded most ordinary earners. Today, any US brokerage account allows you to buy VOO or IVV for a single share price with zero commission and a 0.03% annual fee. That is one of the highest-return financial decisions available.

Choosing the right fee structure is not a detail. Over a 30-year career of saving and investing, the difference between a 0.03% index fund and a 1% actively managed fund can equal years of additional contributions. This calculator makes that difference impossible to ignore.

VOO (Vanguard S&P 500)0.03% expense ratio
IVV (iShares S&P 500)0.03% expense ratio
VTI (Total US Market)0.03% expense ratio
Avg Active Large-Cap~0.65% expense ratio
Common questions
What is an expense ratio and where do I find mine?+
An expense ratio is the annual cost of owning a fund, expressed as a percentage of your investment. It covers management fees, administrative costs, and other operating expenses. It is deducted automatically from the fund's returns, so you never write a check. You can find your fund's expense ratio in its prospectus, on your brokerage's fund detail page, or on research sites like Morningstar. For index funds tracking the S&P 500, typical expense ratios are 0.03% to 0.20%. For actively managed equity funds, the range is commonly 0.50% to 1.50%.
Why do actively managed funds charge higher fees than index funds?+
Actively managed funds employ portfolio managers, analysts, and research teams who spend their days selecting stocks and trying to beat the market. That expertise is expensive. Index funds simply track a market index mechanically, buying whatever is in the index in the same proportions. No stock-picking team is needed, which is why fees can be as low as 0.03%. The uncomfortable reality confirmed by decades of research is that the vast majority of actively managed funds underperform their benchmark index over the long term after fees. Paying more for management has historically produced worse net results on average.
Should I switch from my current fund to a cheaper one?+
Before switching, consider two things. First, taxes. If your fund is in a taxable account and has appreciated, selling triggers a capital gains tax event. The long-term savings from lower fees may still outweigh that one-time tax hit, but you need to run the numbers. If your fund is inside a tax-advantaged account like an IRA or 401(k), switching carries no tax consequences and the decision is much simpler. Second, confirm your current fund is actually underperforming on a risk-adjusted basis after fees. If a 1% fund has genuinely beaten the market by 2% annually over a decade, the math may favor keeping it. Statistically, most do not.
What is a good expense ratio for a mutual fund or ETF?+
For a broad market index fund tracking the S&P 500 or total stock market, anything above 0.20% is hard to justify when 0.03% options are widely available. For actively managed funds, the industry average sits around 0.65% for equity funds. Whether that fee is worth paying depends on whether the fund consistently delivers enough above-benchmark performance to more than cover the extra cost. As a general rule, the lower the expense ratio the better, all else being equal. The best scenario for most long-term investors is a diversified portfolio of low-cost index funds with expense ratios under 0.10%.
What is the difference between a mutual fund and an ETF?+
Both mutual funds and ETFs pool investors' money to buy a collection of assets. The main practical differences are how you buy them and when they are priced. Mutual funds are priced once per day after market close and bought directly from the fund company. ETFs trade throughout the day on a stock exchange like any individual stock and are bought through a brokerage. For most long-term investors, both can accomplish the same goal. The choice often comes down to whether you prefer automatic investing into a mutual fund or the flexibility of real-time ETF trading. The expense ratio, not the fund structure, is almost always what matters most.
Does this calculator account for taxes?+
No. This calculator shows pre-tax growth. In taxable accounts, dividends and capital gains distributions are taxed annually, and selling fund shares triggers a capital gains tax event. In tax-advantaged accounts like a Traditional IRA, Roth IRA, or 401(k), taxes are either deferred or eliminated on qualified withdrawals. The impact of taxes depends heavily on your individual tax situation, the account type you use, and how long you hold the fund. For the most accurate picture of your after-tax returns, consult a tax professional or financial advisor.
Why this matters

Knowledge is your lowest-cost asset

The right fund choice and the right knowledge compound together. One decision made correctly at the start of your investing journey, choosing a 0.03% index fund over a 1% active fund, will quietly add tens of thousands of dollars to your ending balance over 30 years with no additional effort required.

That is the most concrete example of what financial literacy produces. Not motivation or mindset, but specific, measurable outcomes. Use this calculator to see your specific numbers and make that decision with your eyes open.

Knowledge is unction. Start building.

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