This calculator takes a principal amount, interest rate, normal length of the loan, and then you enter how much a month extra you want to pay. It will tell you how long it will take to pay off your mortgage with that new payment.

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Tip: If your loan has already started, enter the current loan balance for Loan Amount and the remaining years for Amortized Length of Mortgage.

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Enter Your Loan Amount:
Your Interest Rate:	%	(1% - 25%)
Amortized Length of Mortgage:
Additional Monthly Payment:
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Note: Please allow for slight rounding in the calculations.