Step Up sip calculator also known as top up calculator provides future value of your SIP investments if you raise your investments yearly by a given percentage. The Groww SIP Calculator is an online tool designed to estimate the future value of your investments in mutual funds via SIP. It calculates the maturity amount based on key inputs like how much you have invested, expected return rate, and investment duration. Handpicked funds for stellar returns - find the perfect fit for your goals today! Simulating Investment Plan: The SIP calculator tells you how much a small monthly investment in a fund can grow over a long period. You can simulate this figure for different combinations of monthly contribution, time to maturity and the rate of return expected.