Mutual Fund Calculator
Calculate future lump-sum mutual fund investment returns and expense ratio fee impact.
Projected Value
The fee is the variable you actually control
A mutual fund pools money from many investors into one professionally managed portfolio. You buy units at the net asset value, which is the fund's holdings divided by units outstanding and is struck once a day rather than traded continuously. That daily pricing is the main structural difference between a mutual fund and an ETF.
Costs matter more than most investors expect, because they compound against you exactly as returns compound for you. A 1% annual expense ratio on a 30-year horizon typically consumes something in the region of a quarter of the final balance — not 1% of it. Load fees charged on entry or exit are a further drag, which is why no-load index funds with expense ratios in the hundredths of a percent have taken so much of the market.
The other gap is between the fund's return and yours. Published returns assume you held throughout; investor returns are usually lower, because money tends to arrive after good performance and leave after bad. Dollar-cost averaging — a fixed amount at a fixed interval — exists mainly to remove that decision. In taxable accounts also watch distributions: a fund can hand you a taxable capital-gains bill in a year the fund itself lost money.
Frequently asked questions
How does expense ratio affect mutual fund returns?
The expense ratio is an annual management fee deducted from fund assets, reducing net investment compound growth over time.
How much do fund fees actually cost me?
More than the number suggests. A 1% expense ratio on a portfolio returning 7% consumes roughly a quarter of the final balance over 30 years, because the fee compounds against you every year. This is the strongest argument for low-cost index funds, where expense ratios below 0.10% are common.
What is the difference between an expense ratio and a load?
The expense ratio is the annual charge deducted from fund assets. A load is a one-off sales commission - front-end on purchase or back-end on sale. No-load funds with low expense ratios are widely available, so paying a load requires a specific justification.
What is NAV?
Net asset value: total fund assets minus liabilities, divided by shares outstanding. Mutual funds price once daily at NAV after market close, which is why a purchase order placed mid-morning executes at that evening's price. ETFs, by contrast, trade continuously and can diverge slightly from NAV.