A Systematic Investment Plan (SIP) is a smart, disciplined way to build long-term wealth by investing fixed amounts regularly in mutual funds. It builds consistency, reduces the pressure of timing the market, and turns large financial goals like ₹1 crore in 20 years or ₹10 lakh in 5 years into manageable monthly investments. 

However, how do you know how much to invest each month to hit those targets? If you invest a higher amount than needed, you may strain your monthly budget. If you invest less, you may not reach your goal on time. This is where an SIP calculator helps. It estimates the required monthly contribution based on your goal, tenure, and expected return, which makes planning more accurate and realistic.