The calculator will help to determine the time period taken to pay off a certain amount of debt. It will also give an estimate of the interest you pay each month to get rid of the debt. How long will it take to pay off a given debt? Monthly Payment ($) Interest Rate (% per annum) Remaining Principle Balance ($) FixedDeclining Minimum Results Monthly Interest you pay ($) Months to erase this Debt (#) Embed the calculator on your website/blog Use the embed codes for the Debt Repayment Period Calculator and paste it in your website or blog. It'll help your visitors determine the time period taken to pay off a certain amount of debt.