Investment Return Calculator
Use your own numbers after reviewing the formula and worked example.
Quick answer
Annualized return asks what constant compound rate would grow the beginning value into the ending value over the holding period.
Formula or method
Keep units, percentages and time periods consistent. The formula is useful as a transparent check on the calculator result and helps explain why changing one input changes the answer.
Step-by-step
- Divide ending by beginning.
- Raise to 1/years.
- Subtract 1.
- Convert to percent.
Worked example
$10,000 growing to $13,500 in three years has annualized return of about 10.52%, while total return is 35%.
How to interpret the result
Annualization helps comparisons but does not show volatility or intermediate cash flows.
When the answer is used for a purchase, loan, payroll decision, construction order, school grade, health estimate or other real-world choice, verify the assumptions that matter in that context. Accurate arithmetic still depends on accurate inputs.
Common mistakes
- Dividing total return by years.
- Using invalid zero/negative starting values.
- Ignoring deposits and withdrawals.
Frequently asked questions
Same as CAGR?
For a simple beginning/end value over years, essentially yes.
Does it show risk?
No.
Can a short period be annualized?
Mathematically yes, but extrapolation can be misleading.