Frequently asked questions
Plain-language answers about when to use the estimate, what your numbers mean, what is left out, and how privacy works.
When should I use the Average Return Calculator?
Use it when you want to test the exact inputs on this page: Estimate average annual return from a beginning and ending value. Adjust a simple return for extra contributions or withdrawals. The result is a check against your assumptions, not proof that a lender, tax app, broker, platform, or provider will use the same number.
What do the main Average Return Calculator inputs mean?
Starting value means the account or investment value at the beginning of the period. Ending value means the value at the end of the period before this quick return check. Years means the full length of the measurement period. Contributions means money added during the period. This quick estimate does not know the exact dates of each deposit. Withdrawals means money removed during the period. The calculator adds it back when finding net gain.
Is average annual return the same as CAGR?
No. Simple average annual return divides cumulative return by years. CAGR shows the steady yearly growth rate from starting value to ending value, but this calculator does not adjust CAGR for contribution or withdrawal timing.
Why do contributions change the result?
Money you add is not investment growth. The calculator subtracts contributions when finding net gain so a deposit is not counted as return.
When should I use IRR instead?
Use IRR or XIRR when cash-flow timing matters, such as many deposits and withdrawals on different dates. This page is a quick estimate, not a money-weighted performance report.
What is the Average Return Calculator doing with my numbers?
In plain language: Net gain = ending value + withdrawals - starting value - contributions. Cumulative return divides net gain by starting value plus contributions. Simple average annual return divides cumulative return by years. CAGR compares starting value with ending value only, so it is not cash-flow adjusted. For the $10,000 to $16,000 example with $2,000 added, net gain is $4,000. The invested base is $12,000, so cumulative return is 33.33% and simple average annual return over 5 years is 6.67%.
How should I read the Average Return Calculator answer?
Read net gain first, then cumulative return, then simple average annual return. Use CAGR as a separate growth-rate check, especially when there were no deposits or withdrawals.
What does this estimate leave out?
This is a simple return check, not a full performance report. It does not calculate time-weighted return, money-weighted return, XIRR, exact cash-flow timing, dividends, fees, taxes, inflation, volatility, benchmark fit, or investment suitability. For official statements, fund comparisons, tax reports, or uneven cash flows, use broker records, fund reports, or an IRR/XIRR method instead of this shortcut.
What should I double-check before copying the result?
Check whether deposits, withdrawals, dividends, fees, taxes, and the time period are entered the same way for every investment you compare.
Does the site save my finance inputs?
No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.