The present invention relates to a method and a system for calculating biological age by using a wearable device and a smartphone. According to the present invention, when biological age is calculated by reflecting real-time multiple biological signals measured in a wearable device, the change of a body state can be accurately measured, thereby easily recognizing and managing the body state and health through the biological age, which is an intuitive index, every day.COPYRIGHT KIPO 2017본 발명은 웨어러블 기기와 스마트폰을 활용한 생체나이 연산 방법 및 시스템에 관한 것이다.