The Specific Absorption Rate (SAR) is a measure of how much energy is absorbed by the body when exposed to radiofrequency electromagnetic fields. It is measured in watts per kilogram (W/kg) and is used to evaluate the potential health risks associated with exposure to wireless devices such as cell phones, laptops, and tablets. CST Studio Suite provides solutions for whole-body SAR, which is more relevant for distant devices, as well as local SAR if the radiation source is in proximity to the body. The method to calculate local SAR varies with the applicable standards. CST Studio Suite provides solutions to both relevant standards averaging over 1 g or 10 g tissue mass.