Estimate the potential returns on your lumpsum mutual fund investment with this online calculator . Input the initial amount, expected rate of return and tenure to get the future value of your corpus. Use the lumpsum calculator to estimate the final balance or compute any lumpsum -related factors, for example, the required rate of return or the necessary periods to reach a certain final balance. Lumpsum Calculator The lumpsum calculator can find the future value based on the present investment, a certain rate of interest, and tenure in years. Calculate how much your one-time lumpsum investment will grow over time. Estimate future value and returns with compound interest.