Bi-Weekly Payments This calculator estimates the savings from paying a mortgage bi-weekly instead of monthly. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Organizing Your Finances Spark joy and become more confident by giving your finances the home organization treatment. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy.