See how much a 0.5% fee actually costs over 30 years of compounding.
Compare two funds with different expense ratios side-by-side on the same portfolio over decades. See the drag in dollars, fees paid, and how many years of contributions disappear into fund fees.
Direct answers to the most common questions, in plain language. Skim if you're in a hurry; dig deeper below.
The annual fee a fund charges, expressed as % of assets.
A fund's expense ratio is its annual operating cost, deducted from fund returns. A 0.5% expense ratio means the fund takes 0.5% of your assets every year: automatically, silently, from your balance.
Index ETFs: 0.03–0.10%. Actively managed: usually 0.5%+.
Index funds and ETFs are the cheapest tier: many under 0.10%, some at 0.03%. Actively managed mutual funds typically charge 0.5–1.5%. Specialty funds and target-date funds run 0.3–0.8%. Below 0.20% is excellent.
A lot: even 0.5% can cost 15% of your portfolio over 30 years.
A 0.5% fee vs 0.05% on $100k over 30 years at 7% return is roughly $90k of difference. Fees compound against you exactly like returns compound for you.
Yes for index funds; with active funds it depends on net-of-fee performance.
For index funds: yes, always pick the lowest. For active funds: a 1% fee might be worth it if the fund beats its index by 2%, but historically very few do, persistently. Default to low-cost index funds.
The mechanics in short answers. No jargon, no upsell.
Expense ratio is deducted continuously from the fund's assets. You never see the bill; it just shows up as a slightly lower return.
A 1% annual fee on a growing balance is a growing dollar fee. Year 1: 1% of $10k = $100. Year 30: 1% of $80k = $800. The fee scales with the win.
At 5 years, a 0.5% fee differential might be 2% of the portfolio. At 30 years, it can be 15–20% of the final balance.
Compare funds on their net-of-fee historical returns. An active fund returning 9% gross at 1% fee = 8% net. An index fund at 9% gross at 0.05% fee = 8.95% net. The index wins.
Worked example: $25,000 starting plus $12,000 a year for 30 years at 7% gross: the 0.05% ER fund ends at ≈ $1.31M while the 0.85% fund ends at ≈ $1.12M, about $187,000 kept just by choosing the cheaper fund.
The fee is modeled as a straight reduction of each year’s return, both funds earn the same gross return, and returns are assumed constant. Everything runs locally in your browser; your numbers never leave this page.
Designed so anyone can model their situation in under a minute, with or without a finance background.
How much an expense ratio drags over decades.
Side-by-side at any rate and time horizon.
Lifetime dollar amount paid in fund fees.
How much extra retirement income from picking the cheaper fund.
A simple ratio that quantifies what fees actually cost.
A 30–40-year fee drag in one chart.
Everything you might ask before, during, or after using this tool.
For index-tracking, yes: there are 0.05% alternatives for the same exposure. For specialized strategies or actively-managed niche funds, 1% can be justified if the manager has a real edge. Most don't.
Often yes: index ETFs from Vanguard, Fidelity, and Schwab are routinely 0.03–0.10%. Comparable index mutual funds at the same firms are similar. Where it differs: actively-managed mutual funds tend to have higher fees than active ETFs.
Expense ratio is the annual cost. A "load" is a sales charge at purchase (front-end load, typically 3–5.75%) or sale (back-end). Loads are extra. Avoid load funds unless you have a very specific reason; no-load funds dominate the market.
Yes: trading costs (inside the fund), bid-ask spreads (for ETFs), and tax inefficiency (for high-turnover active funds). The expense ratio captures the operational drag. Total cost of ownership can be 0.1–0.3% higher than the headline ER for active funds.
Target-date funds typically charge 0.05–0.75%. Vanguard's target-date funds are around 0.08%. Fidelity Freedom Index series is similar. Avoid retail/private 401(k) target-date funds charging 0.50%+ when index alternatives exist.
Massively. Many workplace plans have expensive funds (0.5–1.5% ERs) as default options. Picking lower-cost options in the same plan can save 10–20% of your final balance over a career. Always look at the expense ratio of every fund in your plan.
Both are extremely competitive at the index-fund level. Fidelity offers zero-expense-ratio index funds for select products. Vanguard has the longest track record and the structure (mutual, owned by funds). For most investors, picking either is fine.
Fidelity's zero-fee index funds (FZROX, FZILX) are genuinely 0% expense ratio. The catch: they hold proprietary indices (not S&P 500 or MSCI) and can't be transferred to other brokerages. For long-term holders inside Fidelity, they're great. For flexibility, a 0.03% index ETF is similar.
Other Lazysmirk tools that pair well with this one.
Calculate compound interest with monthly contributions, see the growth curve, and find out why Einstein called it the eighth wonder of the world.
Project lump-sum and recurring mutual fund returns, accounting for expense ratios and fees.
Project monthly SIP investments across any duration. Model step-up SIPs, inflation-adjusted real value, and conservative vs. optimistic return scenarios.
Calculate the Compound Annual Growth Rate of any investment. Compare against S&P 500, bonds, and inflation. Project forward and see the Rule of 72 in action.
Calculate total return, CAGR, and annualized growth across any investment, with or without recurring contributions.
Your portfolio grows at (gross return) − (expense ratio). That fee compounds against you every single year. Over 30 years, a 0.5% differential becomes 15–18% of the final balance.
A simple way to think about it: every 0.1% of extra fee is 3% of your final balance over 30 years. Make the math intuitive.
Average actively-managed US stock fund: ~0.65% expense ratio. Average index fund tracking the same market: ~0.05%.
For the active fund to break even, it must outperform by 0.6% per year, net of all costs.
SPIVA data: 80%+ of active funds underperform their benchmark over 10+ years. The math is unforgiving.
401(k) defaults: often 0.5–1.5% target-date funds. Pick lower-cost options.
Robo-advisors: 0.25–0.50% on top of underlying ETF fees.
Financial advisors: 1.0% AUM typical, on top of fund expenses.
Add it up: total cost can quietly reach 2%+ before you notice.
Specialized strategies: factor investing, dividend growth, ESG, and other niches where there's no exact index alternative.
Skilled managers with multi-decade track records (rare, and identifying them in advance is harder than it sounds).
For 95% of portfolios, low-cost index funds win.
Two short notes worth reading before you trust any number on this page.
Your loan amount, rate, and prepayment inputs never leave your device. No accounts, no cookies on your numbers, no analytics on the values you type. Disconnect from the internet and it still works.
We are not a bank, NBFC, advisor, broker, or distributor of any financial product. The numbers shown here are estimates for educational purposes only, based on the inputs you provide.
Results are not financial, legal, or tax advice. Please consult a qualified professional before any decision about your loan, investments, or personal finances. Actual loan terms and charges depend on your bank and individual circumstances.
