Repayment Calculator How much can I get in student loans based on a certain salary? What will my payment be and what salary will I need to support this debt? Expected salary: Hourly Monthly Annually Interest rate: Repayment Period:  (years)   *Do not enter dollar signs, percent signs or commas. Current Amount Borrowed: Future Borrowing Needs: Interest rate: Repayment Period:  (years) *Do not enter dollar signs, percent signs or commas.