CAGR Calculator

Investment returns are almost never uniform from one year to the next. A share portfolio might gain 22% one year, lose 8% the next, then return 14% the year after. Comparing these volatile, multi-year investments against each other — or against a benchmark — using raw year-by-year returns is messy and misleading. The CAGR Calculator by Trade by KAYAHA solves this by converting any multi-year investment return into a single, smooth annual growth rate that represents the steady year-over-year rate that would have produced the same final result.

Use the calculator above to find the CAGR of any investment. Then read below to understand exactly what compound annual growth rate means, how it is calculated, and how to use it to make sharper, more objective investment comparisons.

What Is the CAGR Calculator?

The CAGR calculator computes the Compound Annual Growth Rate of an investment — the hypothetical constant annual rate of return that would have grown a starting value to an ending value over a specific number of years.

CAGR is not what the investment actually returned each year. It is the single annualised rate that, applied consistently each year, would have produced the observed total gain. It smooths out the volatility of real returns to create a comparable, standardised performance metric.

This makes CAGR one of the most widely used measures in professional investment analysis, appearing in:

• Fund prospectuses and annual reports
• Broker and financial adviser performance presentations
• Company revenue and earnings growth comparisons
• ETF and managed fund performance fact sheets
• Personal portfolio performance reviews

For Australian investors comparing ASX stocks, ETFs, super fund options, or property returns over multi-year periods, CAGR provides the standardised annual return figure that makes apples-to-apples comparisons possible.

The CAGR calculator is valuable for measuring past performance, comparing different investments, and projecting future values when a consistent growth rate is assumed — though it should always be paired with an understanding of the volatility behind the smooth number it produces.

How the CAGR Calculator Works

The calculator takes three inputs — starting value, ending value, and number of years — and solves for the annual growth rate that, when compounded over the specified period, transforms the starting value into the ending value.

The logic is inverse to compound interest: instead of projecting a future value from a known rate, CAGR works backwards to find the implied rate from a known start and end point.

Key Inputs Used in the Calculation

These three inputs are all that is required. The calculator handles the rest — producing CAGR as a percentage that represents the smooth annual equivalent of the observed total growth.

For investments that paid dividends or distributions, you can include reinvested dividends in the ending value to calculate the total return CAGR (which is typically higher than the price-only CAGR), or exclude them to measure price appreciation alone. Both are valid — just be consistent when comparing different assets.

Financial Formula Behind the Calculator

The CAGR formula is:

CAGR = (Ending Value ÷ Starting Value)^(1 ÷ Number of Years) − 1

Expressed as a percentage:

CAGR % = [(Ending Value ÷ Starting Value)^(1 ÷ n) − 1] × 100

Where:

• ^ means “raised to the power of”
• n = number of years
• The result is expressed as a decimal, then multiplied by 100 for the percentage

Breaking it down in plain terms:

1. Divide the ending value by the starting value to get the total growth multiple
2. Raise that multiple to the power of (1 ÷ years) — this finds the equivalent annual multiplier
3. Subtract 1 to convert from a multiplier to a rate of return
4. Multiply by 100 to express as a percentage

For example: an investment growing from $10,000 to $19,000 over 6 years:

CAGR = (19,000 ÷ 10,000)^(1÷6) − 1 = (1.9)^(0.1667) − 1 = 1.1132 − 1 = 0.1132 = 11.32%

Example Calculation

Example 1: ASX Share Portfolio Performance

An investor starts with a $50,000 ASX share portfolio and, after 8 years of reinvested dividends and capital growth, the portfolio is worth $112,000.

Inputs:

• Starting Value: $50,000
• Ending Value: $112,000
• Years: 8

CAGR Calculation:

CAGR = (112,000 ÷ 50,000)^(1÷8) − 1
     = (2.24)^(0.125) − 1
     = 1.1057 − 1
     = 0.1057
     = 10.57%

The portfolio grew at a CAGR of 10.57% — even though actual annual returns varied significantly from year to year.

Comparison Table: CAGR Across Different Investment Scenarios

This table demonstrates CAGR’s core value as a comparison tool. The tech stock looks spectacular at 29.93% CAGR — but behind that single number may lie extreme volatility, years of zero returns, and concentrated risk. The term deposit’s 5.06% CAGR reflects stable, predictable growth. CAGR equalises the time dimension across all these scenarios, enabling direct comparison — but it does not capture the risk taken to achieve each return.

Why This Calculator Is Useful

CAGR is one of the most practically versatile metrics in investment analysis. The CAGR calculator produces results that are directly actionable across multiple financial planning contexts.

Investment performance measurement: The most immediate use is measuring how an investment has actually performed. Rather than tracking year-by-year returns and trying to assess overall quality, CAGR gives you a single, intuitive annual figure. Your ASX portfolio grew at 10.57% CAGR over eight years — better or worse than the index CAGR over the same period? The comparison is instant.

Benchmarking against market indices: Australian investors can calculate the CAGR of their portfolio and compare it directly against the ASX 200 or ASX 300 CAGR over the same period. If your portfolio CAGR trails the index, passive ETF investing may be a more efficient approach. If it leads, your active strategy is adding value. CAGR enables this benchmark comparison precisely.

Comparing assets with different time periods: An investment that doubled in 3 years had a CAGR of 26.0%. An investment that doubled in 7 years had a CAGR of 10.4%. Without CAGR, comparing these two outcomes is difficult. With it, the relative performance is immediately clear.

Business and revenue growth analysis: CAGR is not limited to investment portfolios. Investors and traders evaluating individual ASX-listed companies use revenue CAGR, earnings CAGR, and dividend CAGR to assess a company’s historical growth quality and project forward trajectories. A company growing revenue at 15% CAGR over five years is demonstrably more dynamic than one growing at 3%.

Reverse CAGR — projecting required growth: The CAGR formula can be rearranged to answer: “what CAGR do I need to grow $50,000 to $200,000 in 10 years?” This reverse calculation is directly useful for goal-setting and investment planning.

Tips to Use the CAGR Calculator Effectively

1. Always specify the exact time period CAGR is highly sensitive to the start and end dates selected. A market measured from a crash low will show a much higher CAGR than the same market measured from a peak. Be deliberate about which dates you use and consistent when comparing different assets.

2. Use total return CAGR, not price-only CAGR For equity investments, dividends reinvested materially affect total return. A stock with a 4% annual yield compounding over 10 years contributes significantly to CAGR beyond price appreciation alone. Always use the total return end value (including reinvested dividends) for the most accurate CAGR measurement.

3. Calculate CAGR for your benchmark over the same period CAGR in isolation is informative but not evaluative. Pair every portfolio CAGR calculation with the equivalent CAGR of the relevant benchmark (e.g., ASX 200 total return index) over the identical time period. The difference between your portfolio CAGR and the benchmark CAGR is your alpha — the value (or cost) of active management.

4. Combine CAGR with volatility measures A 15% CAGR with massive year-to-year swings (50% up, 30% down) represents a very different risk-return profile than a 12% CAGR with modest 8–15% annual variation. CAGR tells you the return; standard deviation or maximum drawdown tells you the ride. Use both together.

5. Use CAGR for company analysis, not just portfolios When evaluating an ASX-listed company for investment, calculate the CAGR of its revenue, net profit, dividends per share, and earnings per share over 5–10 years. Consistent, growing CAGRs across these metrics are a hallmark of quality compounders. Inconsistent or declining CAGRs warrant caution.

6. Recalculate as your time horizon extends A portfolio’s CAGR should be recalculated annually as new performance data accumulates. Single-year performance can be misleading; a 3, 5, and 10-year rolling CAGR gives a much more accurate picture of investment quality than any single-year return.

Common Mistakes People Make

Mistake 1: Treating CAGR as the actual annual return CAGR is the equivalent smooth annual rate — not what the investment actually returned each year. Behind a 10% CAGR could be returns of +25%, −8%, +18%, +3%, and +12%. Presenting CAGR as if it represents consistent annual returns misrepresents the volatility experienced by the investor.

Mistake 2: Comparing CAGRs calculated over different time periods A fund reporting 15% CAGR over 3 years and another reporting 12% CAGR over 10 years cannot be directly compared. The first may have captured a strong bull market run. The second has demonstrated performance across multiple market cycles. Always compare CAGR over identical or equivalent time periods.

Mistake 3: Ignoring interim cash flows The CAGR formula uses only starting and ending values. It does not account for additional contributions or withdrawals made during the period. If you added $10,000 to your portfolio in year 3, the CAGR between your original starting value and the ending value is distorted by the contribution. For portfolios with cash flows, internal rate of return (IRR) is a more accurate performance measure than CAGR.

Mistake 4: Using CAGR to project volatile investments CAGR can be used to project what an investment will be worth in the future if it maintains its historical growth rate. This is reasonable for stable assets like diversified ETFs. Applying it to a single volatile stock or a trending sector assumes the past growth rate continues — which for high-growth or cyclical assets is rarely justified.

Mistake 5: Selecting favourable start and end dates Because CAGR is sensitive to the measurement period endpoints, it can be manipulated by selectively choosing a crash low as the start date or a market peak as the end date. When evaluating performance claims, always ask what the CAGR looks like from different start dates to assess consistency.

Mistake 6: Forgetting to account for fees and taxes Gross CAGR (before fees and taxes) is the figure most commonly reported by funds and advisers. After deducting management fees (MERs), adviser fees, and tax on realised gains, the net CAGR — what you actually kept — is materially lower. Always calculate net CAGR for a true picture of your investment outcome.

When Should You Use This Calculator?

The CAGR calculator is relevant across investment research, performance measurement, and financial planning:

• When reviewing your investment portfolio annually — calculate rolling 3, 5, and 10-year CAGRs to assess whether performance is consistent and improving
• When comparing two investment options — run both through the CAGR calculator on the same time period to eliminate the distorting effect of different holding periods
• When benchmarking your portfolio — compare your CAGR against the ASX 200 total return index CAGR over the same period to assess active management value
• When analysing an ASX-listed company — calculate revenue, earnings, and dividend CAGR over 5–10 years as part of your fundamental investment research
• When evaluating a fund manager’s track record — convert a manager’s multi-year performance history into CAGR and compare against the benchmark CAGR over the same period
• When setting financial goals — reverse the CAGR calculation to find what return you need to grow a starting investment to your target value by a target date
• When assessing property versus equity investment returns — calculate CAGR for both using total return figures (rent yield + capital growth for property; dividends + price growth for equities) to compare asset classes on equal terms

Related Financial Calculators

The CAGR calculator is most powerful when used alongside the broader Trade by KAYAHA investment analysis toolkit:

• Compound Interest Calculator — CAGR’s forward-looking sibling. Where CAGR measures a past growth rate, the compound interest calculator projects future value using an assumed growth rate. Use them together: calculate historical CAGR, then use it as the rate assumption in the compound interest model.
• Dividend Reinvestment Calculator — Project the CAGR of a dividend reinvestment strategy over time and compare against non-reinvestment outcomes to quantify the compounding benefit.
• Dividend Yield Calculator — For equity investments, dividend yield contributes directly to total return CAGR. Calculate yield first to ensure your CAGR reflects total return including income.
• Trading Profit Calculator — Track the dollar returns from individual trades. Aggregate these over a year to calculate your annual return, which can then be converted to CAGR across multiple years.
• Portfolio Allocation Calculator — Assess whether the portfolio allocation that produced your historical CAGR is still appropriately structured for your going-forward return and risk objectives.
• Drawdown Calculator — Behind every CAGR is a drawdown profile. Use the drawdown calculator to understand the maximum loss experienced during the CAGR measurement period, providing the risk context behind the return metric.
• Stock Average Price Calculator — For CAGR calculations on positions built through multiple purchases, use the average cost base as the starting value in the CAGR formula for an accurate return measurement.

Frequently Asked Questions (FAQ)

What does CAGR stand for? CAGR stands for Compound Annual Growth Rate. It is the hypothetical constant annual rate of return that would have grown a starting value to an ending value over a specified number of years, accounting for the effect of compounding.

What is a good CAGR for an investment? It depends on the asset class, time period, and risk taken. For ASX equities, long-run CAGR including dividends has historically averaged around 9–10%. A diversified ETF portfolio might target 7–9% CAGR. Individual growth stocks may show 15–25%+ CAGR over certain periods but with significantly higher volatility. Term deposits and cash typically produce CAGR of 3–5%. Always compare CAGR against the relevant benchmark for the asset class.

What is the difference between CAGR and average annual return? Average annual return is the simple arithmetic mean of annual returns — add up each year’s return and divide by the number of years. CAGR is the geometric mean — the actual compounded rate. Because compounding is how real investments grow, CAGR is the more accurate measure of multi-year investment performance. Average annual return typically overstates the actual growth rate compared to CAGR when returns are volatile.

Can CAGR be negative? Yes. If the ending value is lower than the starting value, CAGR is negative. It represents the average annual rate at which the investment declined. A $10,000 investment falling to $7,500 over 5 years has a CAGR of approximately −5.6%.

What inputs are required for the CAGR calculator? Three inputs: starting value, ending value, and number of years. All three are required. The calculator outputs the CAGR as a percentage.

Does CAGR account for dividends? Only if you include them in the ending value. If you use the share price at the end of the period as the ending value, CAGR measures price appreciation only. If you use the total portfolio value including reinvested dividends, CAGR measures total return. For a complete picture of investment performance, always use total return including dividends.

Can I use CAGR to compare stocks and property? Yes — and this is one of CAGR’s most useful applications. To compare ASX shares against a property investment on equal terms, calculate total return CAGR for the shares (price appreciation + dividends reinvested) and compare against property CAGR (capital growth + net rental yield reinvested, after costs). The resulting CAGRs sit on the same scale and enable a direct comparison across asset classes.

Final Thoughts

The CAGR calculator is one of the most analytically powerful tools available to any investor or trader who needs to compare, evaluate, or plan around multi-year investment performance. It reduces the complexity of volatile, multi-period returns into a single, standardised figure that makes comparison immediate and objective.

Whether you are assessing your ASX portfolio against the benchmark, comparing two ETFs with different inception dates, analysing a company’s historical earnings growth, or working backwards from a financial goal to determine the return you need, CAGR is the metric that makes the analysis coherent.

Trade by KAYAHA’s free CAGR calculator delivers this calculation instantly — with no spreadsheet formulas required. Use it as a standard part of your investment research and performance review process, and pair it with the compound interest calculator and drawdown calculator to build a complete, quantitative picture of any investment’s return, growth, and risk profile.

Trade by KAYAHA provides this calculator for educational purposes only. It does not constitute financial or investment advice. Past CAGR is not indicative of future returns. Investment values can rise and fall. For personalised investment advice, consult a licensed financial adviser.