FinanceFormula-based · Runs in your browser

Mutual Fund Calculator

Project a mutual fund balance and net return after contributions, sales loads, deferred charges, and operating expenses.

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Inputs

Enter the values you know. Optional fields may be left empty.

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Required
$
Added at the end of each full year.
$
Optional
$
Required
%
Required
Required
Optional
%
Optional
%
Optional
%

Result

Updates as valid inputs change.

Calculated locally
Investment returns are uncertain. This projection uses one constant return and does not predict market performance.
Ending value
Total principal contributed
Contributions after the initial investment
Net return
Net IRR
Front-end sales charges
Deferred sales charge
Estimated operating expenses
Total estimated fees
Gross investment growth

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Calculation steps

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  1. 1

    Formula selected

    The calculator uses the following formula or method.

    Balanceₜ = Balanceₜ₋₁ × (1 + r_net,m) + net contributions

    Net IRR is solved from the investor's monthly cash outflows and final redemption value. The dollar expense figure is estimated separately from a gross-return tracking balance.

  2. 2

    Values entered

    Your values are placed into the calculation.

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  3. 3

    Result calculated

    The formula or method produces the following result values.

    Results will appear after a successful calculation.

  4. 4

    Answer formatted

    Displayed values are rounded and formatted using each output’s configured precision.

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How it works

The projection starts with the initial investment after any front-end sales charge. It subtracts the annual operating expense ratio from the entered gross annual return, converts that net annual return to an equivalent monthly rate, applies the monthly growth, and then adds scheduled contributions.

A parallel gross-return balance estimates the dollar amount attributable to operating expenses. This keeps the projected ending value aligned with the entered return net of expenses while still showing the fee effect separately. Because an expense ratio is normally based on average fund assets, the dollar expense result is an estimate and is displayed to the nearest ten cents.

A front-end sales charge is applied to every purchase in this model. At the end of the holding period, the deferred sales charge is estimated from the lesser of total contributed principal or the fund value before redemption.

Input query strings and outputs

Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.

Input query strings

9
  • ?initialInvestment= Initial investment

    Money · Required · Default: 20,000

  • ?annualContribution= Annual contribution

    Money · Optional · Default: 0

  • ?monthlyContribution= Monthly contribution

    Money · Optional · Default: 1,000

  • ?annualReturn= Gross annual return

    Percentage · Required · Default: 5

  • ?holdingYears= Holding years

    Number · Required · Default: 5

  • ?holdingMonths= Additional months

    Number · Required · Default: 0

  • ?salesCharge= Front-end sales charge

    Percentage · Optional · Default: 2

  • ?deferredSalesCharge= Deferred sales charge

    Percentage · Optional · Default: 0

  • ?operatingExpense= Annual operating expense ratio

    Percentage · Optional · Default: 0.5

Outputs

10
  • endingValue Ending value

    Currency · Primary output

  • totalPrincipal Total principal contributed

    Currency

  • totalContributions Contributions after the initial investment

    Currency

  • netReturn Net return

    Currency

  • netIrr Net IRR

    Percentage

  • salesCharges Front-end sales charges

    Currency

  • deferredCharge Deferred sales charge

    Currency

  • operatingExpenses Estimated operating expenses

    Currency

  • totalFees Total estimated fees

    Currency

  • grossGrowth Gross investment growth

    Currency

Contributions and fees

Monthly contributions are added at the end of each month. Annual contributions are added at the end of every complete twelve-month period. The results separate sales charges, ongoing operating expenses, and any deferred charge so the effect of fees is visible rather than hidden inside the ending balance.

Net return and IRR

Net return equals the final value after the deferred charge minus all cash contributed. Net IRR uses the timing of the initial investment, later contributions, and final redemption value. It can therefore differ from the entered gross return even when the ending value is higher than the total principal.

Limits

This is a deterministic illustration, not a forecast. Actual mutual fund returns change over time, operating expenses may be accrued differently, sales-load breakpoints may reduce charges, deferred loads may decline with holding time, and taxes can affect the amount retained. Read the fund’s current prospectus and shareholder reports for its actual fee table, risks, and performance information.

Sources
Limitations
  • Investment returns are uncertain. This projection uses one constant return and does not predict market performance.
  • Net IRR is solved from the investor's monthly cash outflows and final redemption value. The dollar expense figure is estimated separately from a gross-return tracking balance.
  • Estimates use the rates, timing, and assumptions entered. Fees, taxes, lender rules, and future changes are included only where explicitly shown.