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Fund expense ratio cost calculator

Estimate the fees an investment fund charges over time from its expense ratio.

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The Fund expense ratio cost calculator turns Amount invested, Expense ratio (%/yr), Years held into Annual fee, Total fees over period, instantly and for free. For instance, with Amount invested = $100,000.00, Expense ratio (%/yr) = 0.5 and Years held = 10 it returns Annual fee = $500.00 and Total fees over period = $5,000.00.

How to use it

  1. Enter your values: Amount invested, Expense ratio (%/yr), Years held.
  2. Read the result instantly: Annual fee, Total fees over period.

Frequently asked questions

What does the Fund expense ratio cost calculator actually compute?

It takes Amount invested, Expense ratio (%/yr) and Years held and derives Annual fee and Total fees over period from them. The calculation is live as you type, so the result updates on every change.

What information do I need to provide?

3 values: Amount invested ($), Expense ratio (%/yr) and Years held. Nothing else is required — no account, no file upload.

Can you show a worked example?

With Amount invested = $100,000.00, Expense ratio (%/yr) = 0.5 and Years held = 10, the calculator returns Annual fee = $500.00 and Total fees over period = $5,000.00. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

What happens if I enter larger values?

It moves a lot. Using Amount invested = $200,000.00, Expense ratio (%/yr) = 1 and Years held = 20 instead, Annual fee goes from $500.00 to $2,000.00 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Amount invested = $50,000.00, Expense ratio (%/yr) = 0.25 and Years held = 5, Annual fee comes out at $125.00. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Comparing two investments that pay at different times, deciding whether a project clears its cost of capital, and sanity-checking a valuation someone else produced.

What is the most common mistake?

Trusting a valuation without asking what share of it comes from the terminal value. Past 70%, the answer is an assumption about the distant future dressed up as a calculation.

How accurate is it, and what are the limits?

Estimate only — not financial advice.

What is the difference between the Fund expense ratio cost calculator and the Index Fund Calculator?

This one returns Annual fee and Total fees over period; the Index Fund Calculator returns Future value and Total invested. That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Mutual Fund Calculator is the closest one after this: Project a fund with a net-of-fees return, an optional front-end load and rising contributions.

Further reading

All guides →
ExplainerWhat a 1 Percent Fee Costs Over 30 YearsA one-point difference in annual charges turns $75,063 into $57,435 on the same $10,000. The fee costs more than the sum invested — here is why compounding does that.ExplainerThe Sortino Denominator Nobody Agrees OnOn one twelve-month series the Sortino ratio is 7.7518 or 3.8759 depending only on whether the squared shortfalls are divided by all twelve months or by the three below target. The two conventions differ by exactly the square root of twelve over three, and they can rank two funds in opposite orders.ExplainerWhat Is an Index Fund? How Passive Investing WorksAn index fund tracks a whole market instead of betting on winners. Learn how tracking works, why diversification and low fees matter, and how it stacks up against active funds.ExplainerRisk/Reward Ratio Explained: The Win Rate Each Ratio RequiresA 1:3 ratio does not make you right more often — it lets you be wrong three times out of four and still break even. Here is the inversion, a table of ratio against required win rate, and what costs do to both.ExplainerThe Sharpe Ratio, and What It Quietly AssumesSharpe = (return − risk-free) ÷ standard deviation, so it prices return per unit of volatility — and volatility is symmetric. Two funds can share a Sharpe of 0.4939 while their Sortino ratios are 8.59 and 0.74. Annualising by √12 assumes independent returns: at an autocorrelation of 0.2 the published figure is 20 percent too high.GuideWhere to Set a Stop-Loss and a Take-ProfitThe stop goes where your idea is wrong, not where your comfort runs out — and then the position size adapts to it. Here is the volatility argument, the sizing arithmetic, and the win rate each reward multiple demands.