Simple Calculator for EMI and SIP . A SIP calculator is a tool that helps you determine the returns you can avail when parking your funds in such investment tools. Systematic Investment Plan or SIP is a process of investing a fixed sum of money in mutual funds at regular intervals. An EMI Calculator is a utility tool, which helps you to calculate the amount you repay each month towards your loan. You can use the EMI calculator and calculate the EMI amount on a car loan, home loan, bike loan, or a personal loan. You get an idea of the monthly repayments you make towards these loans.