What Is the ETF Fee Comparison Calculator?
An ETF fee comparison calculator quantifies how much an expense ratio costs you over time. Tiny differences in annual fees seem trivial but compound into surprisingly large sums across a long investing horizon.
How to use this calculator
Type your numbers into the fields above. The results change the moment you edit any input, so you can try one scenario after another and see exactly what moves. Most calculators show a short summary of the key figures, a line-by-line breakdown underneath, and — where it applies — a year-by-year schedule you can export to a spreadsheet. Everything runs in your browser; nothing is stored or sent anywhere. Treat the output as a planning estimate, not as final word on a real decision.
The Formula
Each fund grows at the gross return minus its expense ratio. The calculator projects the ending value of the same investment in a low-fee and a high-fee fund and shows the difference — the money kept by avoiding needless fees.
Worked Example
Invest $50,000 for 25 years at a 7% return. A 0.03% expense ratio leaves roughly $2,000 more than a 0.75% ratio — about a $30,000 gap — even though the fee difference is well under 1% a year.
Tips for the Most Accurate Estimate
- Favor broad index ETFs with expense ratios near 0.03–0.10%.
- Check the ratio annually; providers sometimes raise fees.
- Remember fees are taken every year, silently compounding.
- Compare similar strategies — a cheap fund in the wrong category still underperforms.
- Include trading spreads and taxes for a full cost picture.
Frequently Asked Questions
Q: What is an expense ratio?
It is the annual fee a fund charges as a percentage of assets, deducted from returns. A 0.50% ratio costs $5 per $1,000 invested each year.
Q: Why does a small fee matter so much?
Because it is charged every year and compounds. Over decades the lost growth on those fees becomes very large.
Q: Are cheaper funds always better?
Usually for similar strategies, yes. But compare what the fund actually holds; the cheapest option is not always the best fit.