What is CAGR? (Compound Annual Growth Rate Explained Simply)
You invested ₹1 lakh five years ago, and today it’s worth ₹2 lakh. That’s a 100% absolute return, but what’s the yearly growth rate? That’s where CAGR—Compound Annual Growth Rate—comes in. It tells you the smooth annualised return that would take your investment from start to finish, assuming profits were reinvested each year. Toolzo’s CAGR Calculator computes it instantly.
CAGR vs. Absolute Return: Why the Difference Matters
Absolute return is simply (Final – Initial) / Initial × 100. It’s easy to understand but ignores time. A 100% return over 2 years is phenomenal; over 20 years it’s mediocre. CAGR solves this by spreading the growth evenly across the years. For example, ₹1,00,000 growing to ₹2,00,000 in 5 years is a CAGR of about 14.87%. This annualised number lets you compare different investments—mutual funds, stocks, real estate—on the same scale, regardless of their holding period.
Step‑by‑Step: Calculate CAGR
- Open the CAGR Calculator. Choose “Calculate CAGR” mode. Enter your initial value, final value, and number of years.
- Click “Calculate.” The tool displays your CAGR and the absolute growth percentage.
- Alternatively, use the “Calculate Final Value” mode: input an initial amount, a target CAGR, and years to see what your investment will become.
Why Investors Love CAGR
CAGR doesn’t show the ups and downs—it’s a hypothetical straight line from start to end. That’s both its strength and its limitation. It’s perfect for measuring long‑term portfolio growth, but it won’t tell you if the ride was bumpy. For a complete picture, use CAGR alongside metrics like standard deviation. For quick calculations, the CAGR Calculator is your go‑to.
Common Mistakes When Using CAGR
The most frequent error is applying CAGR to periods shorter than a year — for a six-month gain, an annualised figure exaggerates reality. Another mistake is comparing CAGRs measured over different lengths of time: a 25% CAGR over 2 years and a 14% CAGR over 15 years are not directly comparable, because short streaks are far easier to achieve than long ones. Also remember that a fund's published CAGR includes the specific start and end dates chosen; shifting the window by even a few months can change the number noticeably. When you evaluate any investment, calculate CAGR over multiple windows (3, 5 and 10 years) to see whether the growth is consistent or driven by one lucky stretch.
Frequently Asked Questions
What’s a good CAGR for equity investments?
A long‑term CAGR of 10‑12% is considered good for Indian equities, though it varies by index and time period.
Can CAGR be negative?
Yes, if your final value is less than the initial value, CAGR will be negative, indicating a loss per year.
Is CAGR the same as IRR?
Not exactly. IRR handles multiple cash flows in and out. CAGR is for a single initial and final value with no intermediate flows.
Does the calculator work for fractional years?
Yes, you can enter decimal years (e.g., 3.5) for precise periods.
Is it free and private?
Absolutely, all calculations happen in your browser.
Disclaimer: This is general information and not financial advice. Past returns do not guarantee future results.
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