Loan Payment Calculator View Calculator This is a basic loan calculator. Thinking of getting a loan to buy that $25,000 boat? Enter the loan amount, interest rate, and term of the loan into this calculator and it will show you the monthly payment amount, the total interest you will pay, and the total amount you will pay over the length of the loan so you can see the actual cost of that "$25,000" boat. You can even enter any additional payment amount you intend to pay each month to work down your principal and the calculator will show you the anticipated payoff time. You can also display and/or print the amortization schedule for your loan. Learn more about putting this calculator or other calculators on your website.