CAGR Calculator (Compound Annual Growth Rate)
Smooth out volatility to see the true annual growth rate. Enter your starting balance, ending balance, and time period to calculate CAGR.
Understanding CAGR as a Performance Benchmark
CAGR answers a simple question: what steady annual growth rate would transform my starting value into my ending value over the given time period? Markets never grow in straight lines. One year might deliver 25% returns, the next -10%, then 15%, then 5%. CAGR distills that rollercoaster into a single, comparable number.
The formula is CAGR = (Ending Value / Beginning Value)^(1 / Years) - 1. If you invested $10,000 and it grew to $16,000 in five years, CAGR is (16,000 / 10,000)^(1/5) - 1 = 9.86%. That means your investment effectively grew by 9.86% per year, even though actual year-to-year returns varied wildly.
Financial professionals prefer CAGR because it strips out noise. A fund that returned 50% in year one and -20% in year two might sound appealing until you calculate the CAGR: (1.5 × 0.8)^(1/2) - 1 = 9.5%. That is solid but not spectacular. CAGR forces honest evaluation of long-term performance rather than cherry-picking the best individual years.
Practical Applications Across Industries
Investors use CAGR to compare mutual funds, ETFs, and stocks over identical time periods. A fund with 12% CAGR over ten years outperformed one with 10% CAGR, even if the latter had higher returns in certain years. This metric levels the playing field for evaluation.
Businesses track revenue CAGR to measure growth trajectory. A company that grew revenue from $5 million to $12 million over four years achieved a 24.5% CAGR, signaling robust expansion. Investors scrutinize CAGR when valuing startups and growth companies because it reveals sustainable growth separate from one-time spikes.
Real estate investors calculate CAGR on property values to assess appreciation rates. If a home purchased for $300,000 is now worth $450,000 after eight years, the CAGR is 5.22%. That number helps you decide whether holding the property still makes sense compared to alternative investments with potentially higher returns.
CAGR Limitations and Complementary Metrics
CAGR assumes constant growth, which never happens in reality. It conceals volatility, drawdowns, and recovery periods. An investment that crashed 50% before roaring back to a net 100% gain over five years shows a healthy CAGR, but living through that drawdown is psychologically brutal. Always pair CAGR with volatility metrics like standard deviation or maximum drawdown.
CAGR ignores cash flows. If you contributed additional capital or withdrew funds during the measurement period, CAGR will not accurately reflect your true return. In those scenarios, IRR (Internal Rate of Return) provides a more precise annualized return by accounting for the timing and size of all cash flows.
Taxes and fees also alter real CAGR. A fund with 10% CAGR before fees might net only 8.5% after management fees and taxes. Always calculate after-cost CAGR to see what you actually earned. This calculator gives you the headline number; adjusting for real-world costs ensures you are making decisions based on your net, spendable returns.
Frequently Asked Questions
What is CAGR?
Compound Annual Growth Rate is the rate at which an investment would grow if it increased at a steady rate every year. It smooths out volatility to show the average annual return.
How does CAGR differ from average annual return?
CAGR accounts for compounding; simple average return does not. If an investment gains 50% one year and loses 30% the next, the simple average is 10%, but CAGR is only 4.5% because the loss compounds on the previous gain.
What is a good CAGR?
It varies by asset class. The S&P 500 has delivered roughly 10% CAGR over the long term. Real estate might target 8-12%. High-growth tech stocks can exceed 20%, but with higher risk. Compare your CAGR to relevant benchmarks.
Can I use CAGR for periods less than a year?
Technically yes, but it is less common. CAGR works best for multi-year periods where compounding effects become meaningful. For short periods, simple returns are usually sufficient.
Does CAGR account for contributions or withdrawals?
No. CAGR assumes a single initial investment that grows to a final value. If you added or withdrew money during the period, use IRR (Internal Rate of Return) instead to get an accurate annualized return.