Compound Annual Growth Rate (CAGR) Calculator

Calculate Compound Annual Growth Rate for investments.

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Years

CAGR

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Understanding CAGR

What is CAGR?

Compound Annual Growth Rate (CAGR) measures the average annual growth rate of an investment over a period longer than one year. It smooths out volatility to show steady growth.

  • Shows the "smoothed" rate of return
  • Useful for comparing investments with different time periods
  • Does NOT reflect actual year-by-year performance

The Formula

CAGR Calculation
CAGR = (End Value / Start Value)^(1/Years) - 1

Worked Example

Scenario: Investment grew from $10,000 to $19,500 over 5 years.
Step 1: End/Start = 19500/10000 = 1.95
Step 2: 1.95^(1/5) = 1.95^0.2 = 1.143
Step 3: 1.143 - 1 = 0.143 = 14.3%
CAGR = 14.3% per year

Common Use Cases

  • Investments: Compare mutual funds, stocks
  • Business: Revenue growth over years
  • Real estate: Property value appreciation

Pro Tips

  • CAGR hides volatility: A stock can crash and recover
  • Use for long periods: Best for 3+ year comparisons
  • Compare apples to apples: Same time periods only

CAGR: The Smoothed Reality

CAGR represents the constant rate of return that would take an investment from its beginning value to its ending value over a specified period. Unlike simple averages, CAGR smooths out volatility to show what your investment actually achieved.

Why Simple Averages Mislead

  • Example: If you gain 100% one year and lose 50% the next, your simple average is +25%.
  • Reality: You started with $100, grew to $200, then dropped to $100. Your actual gain is 0%.
  • CAGR tells the truth: It correctly shows 0% annual growth in this scenario.

CAGR Investment Benchmarks

S&P 500 historical CAGR: ~10% over the long term. Real estate: 3-5% (price appreciation). Emerging markets can show 15%+ but with higher volatility. When evaluating investments, compare CAGR over similar time periods - a 5-year CAGR is more reliable than a 1-year figure.

Frequently Asked Questions

What does CAGR tell an investor?

CAGR provides a smoothed annual rate of return, making it easier to compare the performance of different investments over time, ignoring short-term volatility.

How is CAGR different from average annual return?

Average return is just the mean of yearly gains. CAGR accounts for compounding, which is more accurate for long-term growth.

Is CAGR a good predictor of future growth?

No. CAGR describes historical growth. It doesn't guarantee that the investment will continue to grow at that rate in the future.

🔍 Authoritative References

For more information about advanced financial calculations, consult these trusted sources: