Understand your CAGR result
Learn what annualised endpoint growth can explain—and what it leaves out.
What CAGR means
CAGR is the constant annual compound rate that would turn a beginning value into an ending value over the selected period. It summarises two known endpoints; it is not the actual return recorded in every year.
How to use the CAGR calculator
- Enter the positive value at the beginning of the period.
- Enter the value at the end; use zero only when the ending value was completely lost.
- Enter the elapsed time in years. Fractional years are accepted to two decimal places.
- Calculate and compare CAGR with the total return and absolute gain or loss.
How the CAGR formula works
The ending-to-beginning ratio is raised to the inverse of the period, then one is subtracted. This produces the constant annual compound rate that would connect the endpoints.
How to interpret CAGR
A positive CAGR means the ending value is higher; a negative CAGR means it is lower. CAGR is useful for comparing differently sized values across periods, but comparisons should use consistent assumptions.
CAGR versus total return
| Measure | What it shows | Time treatment |
|---|---|---|
| CAGR | A smooth annualised rate | Adjusts for the length of the period |
| Total return | The complete endpoint percentage change | Does not annualise the change |
Worked CAGR example
A beginning value of ₹1,00,000 and ending value of ₹1,61,051 over five years produce an approximately 10% CAGR, ₹61,051 absolute gain, 61.051% total return, and 1.61051× growth multiple.
Declines and a zero ending value
An ending value below the beginning value produces a negative CAGR. A zero ending value is treated as a complete loss, so both CAGR and total return are -100%.
When CAGR is useful
- Summarise multi-year endpoint growth in one annualised figure.
- Compare like-for-like growth rates across periods of different lengths.
- Check the annual rate implied by a known beginning and ending value.
Limitations and assumptions
Common CAGR mistakes
- Using zero or a negative beginning value.
- Confusing total return with an annualised return.
- Treating CAGR as the return earned in every individual year.
- Ignoring contributions, withdrawals, fees, taxes, or inflation embedded in the endpoint values.
- Annualising a very short period without explaining how sensitive the result is.
Practical comparison tips
- Use the same valuation basis and currency for both endpoints.
- Compare like-for-like periods and measures.
- Review total return alongside CAGR.
- Use other evidence to assess risk and volatility.