Mortgage Calculator You can calculate approximately what your new loan payment will be, with a couple of these traditional examples -- a 15 year  mortgage is 180 payments, and a 30 year mortgage is 360.    Loan Amount ($): Interest Rate (%): Term (year): RESULTS Monthly Payment ($):  # of Payment:  Total Payment ($):  There's the old fashion way of doing it, feel free to print out this page and carry this little chart with you   Monthly Payment per $1,000 of loan amount  INTEREST RATE 15 YEAR TERM 30 YEAR TERM 4% 7.40 4.78 5% 7.91 5.37 6% 8.44 6.00 7% 8.99 6.66 8% 9.56 7.34 9% 10.15 8.05 10% 10.75 8.78 11% 11.37 9.53 12% 12.01 10.29 14% 13.40 11.90 16% 14.70 13.50