A moisture meter that can easily measure a moisture content of a subject and can be effectively used to assist the subject in appropriately regulating the moisture content. A moisture meter for measuring a moisture content of a subject includes a probe-type moisture measuring unit held in an armpit of the subject so as to measure a moisture content in the armpit in order to measure the moisture content of the subject and a temperature measuring unit held in the armpit of the subject so as to measure the temperature of the subject. The moisture meter further includes a main body a measuring unit holder that is sandwiched in the armpit while holding the probe-type moisture measuring unit and the temperature measuring unit and a display unit holder that holds a display unit that displays the measured moisture content of the subject and the measured temperature of the subject.
