Personal loan repayment calculator terms and conditions

The Repayments Calculator calculates the repayment amount depending upon the repayment frequency requested, which is dependent upon the loan amount, loan term and interest rate that you input.

Calculator Assumptions

Length of Month:

All months are of equal length – 30 days.

Number of Weeks & Fortnights in a Year:

One year is assumed to contain exactly 52 weeks or 26 fortnights. This means each year has 364 days.


The total interest payable is rounded up to the nearest dollar.

Interest Rate:

The calculator interest rate is a rate you input. The interest rate you may be eligible for, may be higher or lower than this rate based on your credit eligibility. The “estimated total interest payable” figure is calculated as the interest rate you input (per annum) divided by the number of deposit periods. Interest rates on personal loans may be fixed or variable – for variable rate loans, estimated repayments change as interest rates change.


A $10 per month account keeping fee also applies if you take out a NAB Personal Loan, which is also included in the repayment estimate.