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MIRR Calculator

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Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate modified internal rate of return (MIRR) of an investment based on a series of cash flows that occur at regular time intervals. Cash flows may be set to annual, semi-annual, quarterly, monthly, weekly or daily intervals.

% p.a.

% p.a.

Cash flow

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Result window

Android: Use this MIRR calculator offline with our TVM financial calculator app.

MIRR calculation

We use the same formula as implemented in MS-Excel for calculating modified internal rate of return. The formula of MIRR is:
MIRR Formual
where, n is the number of cash flows

Both the finance rate frate and reinvestment rate rrate are periodic rates. In this calculator, you enter rates as annual percentage rate; they will be automatically converted to their equivalent periodic rate depending on the frequency of payment.

For explanation of MIRR function, refer this MS-excel document.

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