The kMeans cluster analysis is one of the simplest and most common procedures for cluster analysis. Thus, the kMeans method is one of the most widely used methods. It is a partitioning procedure that is particularly suitable for large amounts of data.

The kmeans method tries to distribute the data points among the k clusters in such a way that the sum of the distances from each point to the respective cluster centroid is minimised.

And here is the online kMeans Cluster Calculator on DATAtab:
https://datatab.net/statisticscalcul...