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Mortgage calculator - allows you to enter prepayments as well as generate an amortization table

Change these fields as desired:
Principal Loan Balance
Annual Interest Rate (%)
(Look elsewhere for latest rates)
CANADIANS: Add a C (e.g. 7.75C) and I will use a conversion factor to convert your rates to a US equivalent to use in my calculations.
Amortization Length (Years, typically 30 or 15 in US, 25 in Canada)
Starting: Month = Year =
Prepayment options
Monthly Principal Prepayment Amount
Annual Principal Prepayment Amount (Enter B here for Bi-weekly Loans)
One-Time Prepayment Amount, to be paid before payment (month #)
Display options
Display Using      Show full amortization table?
Original Mortgage calculator