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Cloud computing is distributed computing over a network and it means the ability to run a program on many connected computers at the same time. Large scale distributed systems such as cloud computing applications are becoming very common. These applications come with increasing challenges on how to transfer and where to store and compute data. Load balancing is the one of the challenging task. Load balancing is the process of reassigning the total loads to the individual nodes of the collective system to make the best response time and also good utilization of the resources and to remove the situation where some nodes are over loaded and some other are under loaded. To decrease the total number of heavy nodes (servers) in the system by moving load from heavy nodes (servers) to light nodes (servers) is the main aim of balancing the load. Our objective is to allocate the files as uniformly as possible among the nodes such that no node manages an excessive number of loads. In this paper we present K-means algorithm, Min-Min and Max-Min algorithm for load balancing on cloud.