This Calculator is carefully designed for those people who have sizeable funds for investment and who ae currently earning a good interest amount or those who wish to earn monthly interest/income from such investment with proper planning. This calculator allows you to change rate of interest, withdrawal amount because income and withdrawal amounts are never static, they can vary. Further if you wish to introduce more funds in your investment fund or you wish to withdraw more amount than your usual monthly withdrawal for any upcoming expenses such as upcoming future marriage or any asset purchase or renovation in your house etc. a column has been provided for such entries. Download this calculator on your laptop/desktop for your financial planning.