CAGR Calculator for Investment and Business Growth
Calculate compound annual growth rate from a beginning value, ending value, and elapsed years, with transparent assumptions.
Compound annual growth rate
Formula: ((Ending value ÷ Beginning value)^(1 ÷ Years) − 1) × 100
Results are derived only from the values entered here. They are not stored and are not an investment recommendation.
Research context: Apply this methodology with Operating margin calculator, Present Value Calculator, Revenue growth in business process management and Revenue growth in active pharmaceutical ingredients.
What this resource does
Compound annual growth rate converts a start-to-end change into one constant annualized rate. It is useful for comparing growth over different holding periods, but it describes a smoothed path rather than the actual year-by-year experience.
Enter values measured on the same basis and a positive number of years. The result answers what constant annual rate would connect the beginning and ending values if compounding occurred once per year.
Methodology
- Confirm that the beginning and ending figures use the same currency, units, and accounting definition.
- Measure the elapsed period precisely; three reporting dates normally create a two-year interval.
- Apply (ending value ÷ beginning value) raised to 1 ÷ years, then subtract one.
- Compare the annualized result with the underlying yearly path and any cash flows before drawing conclusions.
How to interpret it
A positive CAGR means the ending value exceeds the beginning value on an annualized basis. A negative result means contraction. The number is most useful beside volatility, drawdown, and source dates.
For company revenue or profit, check whether acquisitions, disposals, currency translation, or accounting changes altered comparability.
Limitations and failure modes
- CAGR hides the sequence and volatility of interim observations.
- It does not account for contributions, withdrawals, dividends, fees, or taxes unless those are embedded in the values.
- A beginning value of zero or a non-positive measurement period is mathematically invalid.
- Historical growth is not a forecast and does not imply a future return.
Research workflow
- Record the source and date for both values.
- Run the calculation.
- Inspect the intervening observations.
- Document comparability issues and scenario sensitivity.
Questions and answers
Is CAGR the same as an average annual return?
No. An arithmetic average treats yearly rates independently; CAGR is the single compounded rate linking the first and last values.
Can CAGR be used for company revenue?
Yes, when the periods, units, and business perimeter are comparable. It should be read with annual results and material corporate events.