PROBLEM TO BE SOLVED: To provide a cardiac output measuring unit which has a simple configuration and can appropriately measure a cardiac output by connecting to an existing biological information terminal apparatus.SOLUTION: A cardiac output measuring unit includes: a biological signal receiving section 18 which is configured to receive a plurality of biological signals a calibration information storing section 19 which is configured to store calibration information a calculation section 11 which is configured to calculate a cardiac output based on the plurality of biological signals and the calibration information and a communication section 16 which is capable of transmitting the cardiac output to an external device.COPYRIGHT: (C)2014,JPO&INPIT【課題】構成が簡素で、既存の生体情報端末装置に接続して適切に心拍出量測定を行うことができる心拍出量測定ユニットを提供する。【解決手段】複数の生体信号を受信する生体信号受信部18と、校正情報を保持する校正情報保持部19と、前記複数の生体信号と前記校正情報に基づき、心拍出量を求める演算部11と、前記心拍出量を外部機器へ送信可能な通信部16とを備える。【選択図】図2