What is a good CAGR for an investment?

The S&P 500 has historically returned roughly 10% annually before inflation (about 7% after inflation). A CAGR above 15% over a long period is exceptional. For a business, a CAGR of 20%+ is considered strong growth. Context matters: a savings account CAGR of 4.5% is excellent; a stock portfolio at 4.5% is underperforming.

What is the difference between CAGR and average annual return?

Average annual return simply averages yearly percentage gains. CAGR accounts for compounding and tells you the single steady growth rate that would take you from the starting to ending value. Example: Year 1 +50%, Year 2 −33%. Average return = 8.5%. CAGR = 0% (you ended where you started). CAGR is always more accurate for measuring real investment growth.

Can CAGR be negative?

Yes. If an investment loses value over time, the CAGR will be negative. For example, an investment that drops from $10,000 to $7,000 over 5 years has a CAGR of approximately −6.7%. A negative CAGR tells you the annualized rate at which your money eroded.

Why does CAGR ignore volatility?

CAGR only looks at the starting and ending value. It doesn't care what happened in between. Two investments can have the same CAGR — one gaining steadily, one swinging wildly — but very different risk profiles. This is why CAGR should always be paired with standard deviation or maximum drawdown when evaluating investments.

How is CAGR different from IRR?

CAGR assumes a single lump-sum investment with no additional contributions. Internal Rate of Return (IRR) handles cash flows at different points in time — deposits, withdrawals, dividends — making it better suited for evaluating real projects or portfolios with ongoing contributions.

CAGR Explained: How to Measure the True Growth Rate of Any Investment

For Informational Purposes Only: This article is provided for general educational purposes and does not constitute financial, investment, tax, or legal advice. Please consult a licensed financial advisor before making investment decisions. Past performance does not guarantee future results.

If you invested $10,000 in an index fund ten years ago and it is worth $26,000 today, what was your annual return? You might think it's simple: $16,000 gain over 10 years, so 16% per year. That logic is wrong — and it is exactly why CAGR exists.

The Compound Annual Growth Rate (CAGR) gives you the true, annualized growth rate of an investment, accounting for the effect of compounding. It is the single most useful number for comparing investment performance over time, and understanding it properly separates informed investors from those flying blind.

What Is CAGR?

CAGR stands for Compound Annual Growth Rate. It represents the rate at which an investment would have grown if it had grown at a steady rate every single year, compounding annually, to reach its ending value from its starting value.

The key word is "as if." Real investments never grow at a perfectly steady rate — they surge and crash and recover. CAGR smooths all of that noise into a single number that answers the question: What consistent annual return would explain this outcome?

In the example above, $10,000 growing to $26,000 over 10 years has a CAGR of approximately 10% — not 16%. The difference comes from compounding. At 10% per year compounded, you earn interest on your interest, which means later years contribute disproportionately more to the final value.

The CAGR Formula

CAGR = (Ending Value / Beginning Value)^(1/n) − 1

Where:

Ending Value = the final investment value
Beginning Value = the initial investment value
n = number of years

Let's verify our example:

Ending Value: $26,000
Beginning Value: $10,000
n: 10 years

CAGR = (26,000 / 10,000)^(1/10) − 1 = 2.6^0.1 − 1 = 1.1 − 1 = 10%

A clean 10% annual growth rate, compounded, takes $10,000 to exactly $26,000 over ten years.

Why the Simple Average Lies to You

Here is an example that shows why averaging annual returns is misleading:

| Year | Return | Portfolio Value | |------|--------|----------------| | Start | — | $10,000 | | Year 1 | +100% | $20,000 | | Year 2 | −50% | $10,000 |

Arithmetic average return: (+100% + −50%) / 2 = +25%

CAGR: ($10,000 / $10,000)^(1/2) − 1 = 0%

You didn't make 25% per year. You made exactly nothing. The CAGR tells the truth. The arithmetic average flatters a result that was, in reality, a breakeven outcome.

This is why professional fund managers and financial analysts always use CAGR (or a closely related measure called the Time-Weighted Return) when presenting performance over multiple years.

CAGR in Practice: What the Numbers Actually Mean

Comparing Two Investments

Imagine you are evaluating two mutual funds:

Fund A: Grew from $5,000 to $11,200 in 6 years
Fund B: Grew from $5,000 to $10,800 in 6 years

Fund A CAGR = (11,200 / 5,000)^(1/6) − 1 = 14.3% Fund B CAGR = (10,800 / 5,000)^(1/6) − 1 = 13.7%

Fund A outperformed by roughly 0.6 percentage points per year. On a small portfolio that seems minor, but compounded over a lifetime of investing, it compounds into a substantial difference.

Evaluating Business Growth

CAGR is equally powerful for evaluating company performance. A business whose revenue grew from $2 million to $8 million over 5 years has a revenue CAGR of:

(8,000,000 / 2,000,000)^(1/5) − 1 = 4^0.2 − 1 = 31.9%

That is exceptional growth. Analysts use revenue CAGR, earnings CAGR, and user growth CAGR to evaluate whether a company's growth story is sustainable or inflating a single outlier year.

What Is a Good CAGR?

There is no universal answer — context is everything. Here are some benchmarks:

| Investment Type | Historical CAGR (approximate) | |----------------|-------------------------------| | US Savings Account (2024) | 4.5–5.5% | | US Treasury Bonds (10-year) | 3–5% | | Real Estate (national average) | 4–6% | | S&P 500 Index (1957–2024) | ~10.7% nominal, ~7% after inflation | | Warren Buffett / Berkshire Hathaway | ~19.8% (1965–2023) | | Venture Capital (top quartile) | 20–30%+ |

For a personal investment portfolio, consistently achieving a CAGR of 8–12% over 20+ years is considered strong performance.

The Limitations of CAGR (What It Doesn't Tell You)

CAGR is a powerful tool, but it has real blind spots every investor should understand.

1. It Ignores Volatility

Two investments with identical CAGRs can have wildly different risk profiles. Investment A might have steady 10% annual returns. Investment B might swing between +40% and −20% each year. Same CAGR — very different experience for your stomach (and potentially your behavior during downturns).

Always pair CAGR with a volatility measure (standard deviation, Sharpe ratio, or simply maximum drawdown) to get a full picture.

2. It Assumes No Contributions or Withdrawals

The standard CAGR formula assumes you invest a lump sum at the start and withdraw it at the end. Real investors regularly contribute and withdraw. For portfolios with ongoing cash flows, use Internal Rate of Return (IRR) instead.

3. It Can Be Cherry-Picked

Because CAGR depends entirely on the start and end date, a fund manager can select a favorable time window that makes their performance look exceptional. A fund that returned 25% CAGR from 2015 to 2021 might show a very different number if you extend the window to include 2022.

Always look at CAGR over multiple time horizons — 1 year, 3 years, 5 years, and 10 years — before drawing conclusions.

4. It Ignores Dividends (Unless You Reinvest)

If a stock pays dividends that are not reinvested, the price appreciation CAGR understates your total return. Total return CAGR (which assumes dividend reinvestment) is almost always the more relevant measure for long-term investors.

How to Use the CAGR Calculator

Using the CAGR Calculator on Findocs is straightforward:

Enter the Starting Value — the amount you invested at the beginning
Enter the Ending Value — the current or final value of the investment
Enter the Number of Years — the holding period in years (you can use decimals for partial years)

The calculator instantly returns the CAGR and displays the growth trajectory as a chart, showing how the investment would have grown if it had compounded at that steady rate.

Try the example: invest $1,000, it grows to $2,500 over 5 years. The CAGR is 20.1% — meaning your money effectively doubled and then some, at roughly 20% per year.

CAGR vs. Other Return Metrics

| Metric | Best Used For | Key Limitation | |--------|---------------|----------------| | CAGR | Single lump-sum investment, business growth | Ignores volatility and cash flows | | IRR | Investments with multiple cash flows | Complex to calculate manually | | Average Annual Return | Quick rough estimates | Overstates returns in volatile periods | | Total Return | Comparing buy-and-hold to benchmarks | Doesn't account for time | | Sharpe Ratio | Risk-adjusted performance | Requires benchmark data |

Key Takeaways

CAGR smooths investment performance into a single annual growth rate, accounting for compounding
It is always more accurate than average return for measuring multi-year investment performance
The formula is: (Ending Value / Beginning Value)^(1/n) − 1
Good CAGR benchmarks depend on the asset class: 7–10% for a diversified stock portfolio, 15%+ for a business or exceptional investment
Always check multiple time periods before relying on any CAGR figure — single-window numbers can be misleading
Pair CAGR with volatility data to understand risk alongside return

Use the CAGR Calculator to analyze any investment, compare growth rates, or evaluate business performance over any time period.