To use a Pag-IBIG MP2 savings calculator, you typically need to input your desired monthly contribution and the length of your savings term. The calculator will then project your total savings, including dividends, at the end of the term. This can help you plan your finances and understand the potential growth of your investment. Remember that actual returns may vary based on Pag-IBIG's declared dividend rates. For accurate and updated information, consider checking the official Pag-IBIG Fund website or consult with a financial advisor.