Suppose you know how much you need. For example, you need Rs 1 crore to retire in 10 years. Alternatively, you need Rs 30 lakh for a business investment in five years. This calculator will tell exactly how much you need to save each month. Simply enter your goal amount, the time period to the goal, existing savings and return rate. If you can grow your monthly saving, enter this as well (eg: 8% hike in the SIP every year).