The aim of COMPUMAG 2019 is to discuss recent developments and practical applications in the numerical computation of electromagnetic fields for engineers and physicists engaged in the design and analysis of electromagnetic devices and systems. Reflecting the new trends and rapid progress in the field of topics listed in the conference website, authors worldwide are invited to submit original and previously unpublished contributions. With your valuable contribution and active participation, we believe that you will benefit from the excellent quality of technical presentations, have fruitful discussions, experience pleasant moments by meeting friends and establishing new scientific relationships, and have an enjoyable stay in Paris. The Organizers: Prof. Zhuoxiang Ren (L2E, France), chair Prof. Stéphane Clénet (L2EP, France), co-chair Prof. Lionel Pichon (GeePs, France), co-chair Prof. Kay Hameyer (RWTH, Aachen, Germany), editorial board chair Ass. Prof. Abdelkader Benabou (L2EP, France), editorial board co-chair Topics Mathematical Modelling and Formulations Static and Quasi-Static Fields Wave Propagation Electromagnetic Compatibility Nano-Electromagnetic Computation Bio-Electromagnetic Computation Electromagnetic Sensors, Sensing and Metrology Photonics and Optoelectronics Material Modelling Multi-Physics and Coupled Problems Multi-Scale Modelling and Homogenization Optimization and Design Numerical Techniques Software Methodology Novel Computational Methods for Machines and Devices Education