In recent years, fuel cell is the most promising renewable power sources because of its high stability, low energy consumed, very low emission and high efficiency. In addition to that, it can be utilized as various applications such a transportation, residential building and in electronics appliances. In order to extract the maximum efficiency from fuel cell a DC-DC converter is highly essential. However, among various types of boost converter interleaved boost converter (IBC) has low ripple current, reduce electromagnetic emission, high efficiency and more reliable. In this paper a comparative studies of input ripple current, output voltage and current by using fuel cell connected to IBC with and without maximum power point tracking (MPPT) in MATLAB/SIMULINK environment.