CAGR Calculator
Calculate the compound annual growth rate of an investment or business over time with this free CAGR calculator in your browser.
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Before you rely on this: Estimates only — not financial, tax or legal advice. Confirm current rates, fees and rules before relying on these figures.
How to use this calculator
- Enter the beginning value, ending value and number of years.
- Read the CAGR and the total growth.
How it works
CAGR is the steady yearly rate that turns the start into the end: (ending ÷ beginning)^(1 ÷ years) − 1.
Worked example
$10,000 → $20,000 over 5 years. CAGR ≈ 14.87% a year (100% total growth).
Common mistakes
- Using total growth instead of CAGR — doubling over 5 years is ~15%/yr, not 20%/yr.
- Counting the wrong number of years (it's the gaps between values, not the data points).
Frequently asked questions
What is CAGR?
Compound annual growth rate — the steady yearly rate that takes a starting value to an ending value: CAGR = (end ÷ start)^(1 ÷ years) − 1.
Why use CAGR instead of average return?
CAGR smooths volatility into one annual figure, so it compares investments more fairly than a simple average of yearly returns.
How is CAGR different from average return?
CAGR is the geometric (compounded) rate, which accounts for compounding; a simple average of yearly returns usually overstates real growth.
Related tools
- Compound Interest Calculator
- ROI Calculator
- Future Value Calculator
- APY Calculator
- Doubling Time Calculator
- Real Rate of Return Calculator
Explore more in Finance, Business, Property & Pricing.
Cite this tool
Zerdly. (2026). CAGR Calculator. Retrieved from https://www.zerdly.com/tools/cagr-calculator/
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.