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FINANCE

Average Return Calculator

Estimate average return based on cash flow from starting balance, ending balance, cash-flow observations with the Average Return Calculator.

Choose an average-return modelUse balance cash flows or annual percentage returns.
2 options
Annual deposits and withdrawals10 of 50

Paste up to 50 values from a row, column, or spreadsheet.

AVERAGE RETURN BASED ON CASH FLOW6.05%

Starting balance: $10,000.00; net deposits/withdrawals: $0.00; ending balance: $18,000.00.

Estimate based on the values shown
MethodComputes a cash-flow-adjusted annual return or arithmetic and cumulative return across a typed annual series.

Before you use the result

Planning estimate only. Rates, fees, taxes, eligibility rules, timing, and provider terms can change the result.

Sources

CALCULATOR GUIDE

How to use the Average Return Calculator

Estimate average return based on cash flow from starting balance, ending balance, cash-flow observations with the Average Return Calculator. It includes Average Return Based on Cash Flow, Average and Cumulative Return workflows, so choose the one that matches the values you actually know. Use it as a planning baseline, then compare the estimate with current rates, fees, taxes, and provider terms.

Step by step

  1. For the Average Return example, select Average Return Based on Cash Flow and enter starting balance, ending balance, cash-flow observations, 1. deposit withdraw, 2. deposit withdraw, and the remaining settings listed in the worked example. Keep each value in the unit displayed beside its field.
  2. Review the selected Average Return workflow and inputs, then read average return based on cash flow in the result panel.
  3. Change one Average Return assumption at a time to compare scenarios. Use Reset to restore this tool's worked example values.

How the calculation works

Computes a cash-flow-adjusted annual return or arithmetic and cumulative return across a typed annual series.

Worked example

To reproduce the Average Return worked example, reset the calculator. Select the Average Return Based on Cash Flow workflow. Use starting balance $10,000; ending balance $18,000; cash-flow observations 10; 1. deposit withdraw $0; 2. deposit withdraw $0; 3. deposit withdraw $0; 4. deposit withdraw $0; 5. deposit withdraw $0; 6. deposit withdraw $0; 7. deposit withdraw $0; 8. deposit withdraw $0; 9. deposit withdraw $0; 10. deposit withdraw $0. The result is average return based on cash flow of 6.05%. Starting balance: $10,000.00. Review the displayed units before comparing the result.

Understanding the result

The Average Return reports average return based on cash flow. Use it as a planning baseline, then compare the estimate with current rates, fees, taxes, and provider terms. Planning estimate only. Rates, fees, taxes, eligibility rules, timing, and provider terms can change the result.

How to check the answer

Check the Average Return result by entering the same starting balance, ending balance, cash-flow observations in an independent statement, lender, provider, or official tool. Change one input and confirm that average return based on cash flow moves in the direction implied by Computes a cash-flow-adjusted annual return or arithmetic and cumulative return across a typed annual series.

Common questions

What does the Average Return calculate?

Estimate average return based on cash flow from starting balance, ending balance, cash-flow observations with the Average Return Calculator.

Which inputs does the Average Return example use?

The worked example uses starting balance, ending balance, cash-flow observations, 1. deposit withdraw, 2. deposit withdraw, and the remaining settings listed in the worked example in the Average Return Based on Cash Flow workflow. Other workflows can show different fields. Keep the chosen workflow and units with the result when comparing calculations.

Is the Average Return result exact?

Planning estimate only. Rates, fees, taxes, eligibility rules, timing, and provider terms can change the result. Recheck starting balance, ending balance, cash-flow observations and use average return based on cash flow only for a decision where that level of precision is appropriate.

Formula tests, limits, and sources reviewed September 1, 2026. Guide examples updated October 12, 2026.
INTERPRET THE RESULTRead the finance guideCheck assumptions, limitations and comparison methods →