Brain tumor is considered as a major concern in the current scenario. The survival of a person is a challenging task, if the brain tumor is in the severe stage. Fractal dimension (FD) is a prime factor of fractal geometry to calculate the dimension of a very complicated self-similar fractal image. It can be used in image segmentation, image classification and texture analysis. In this paper, an Internet of Things (IoT)-cloud based fractal model is proposed for the processing and analysis of several brain tumor images (BTIs). The proposed model focuses on IoT and cloud-based mechanisms for the processing of BTIs. In this work, the main focus is given on the computation of FD of several BTIs by the help of IoT-Cloud based fractal model which can be helpful for the radiologists to carry out further processing and analysis. The FD of several BTIs is computed using different FD methods such as Radius Mass, Box Counting, Correlation, Cluster and Dilation along with the error measurement. These FD methods are implemented using Fractalyse 2.4 software.