You can use our home loan calculator to estimate how rising or falling interest rates will affect the monthly payment of your existing home loan. Here's how to do it: Enter your remaining home loan amount divided by 0.9 in the “Purchase price” field and press “Calculate”. Select the number of years remaining in your home loan period as the loan period. Select your estimate of the future home loan interest (reference rate + margin) as the interest rate. The default assumption in the calculator is the 12-month Euribor + a margin of 0.8%.  The calculator will show an indicative estimate of the monthly payment with the interest rate level of your choice.