text: need mortgage repayment caculator that allows fixed monthly payment? mortgage 30,000 at 6% for 5 years with $600 monthly payment starting january 2006.  all online calcs i found always change the monthly payment.  i want a simple monthly repayment statement without having to do the math. there is a payment calculator in http://www.expenseregister.com/home/loancalculator.html .  although, your question has all the answers... you know the monthly amount and number of years... so i am not sure if this is what you want.