A hand held device (10) for measuring automatically the Hormonal Quotient and correlated hormonal status of an individual, providing a measure of index finger for ring finger. The device (10) includes a base (30) upon which a concentrically arranged disc (40) is rotatable mounted by a central fastener (11). The base (30) carries a ruler face (32), a first finger-length logarithm scale (36), a Hormonal Quotient logarithm scale (38) and an arrow indicator of the gonadal hormone exposure index (39). The disc (40) carries a second finger-length logarithm scale (42) and the Hormonal Quotient arrow (44). When scales (42) and (36) are properly aligned the Hormonal Quotient arrow (44) inserts automatically into the resulting Hormonal Quotient in the Hormonal Quotient scale (38) and the correlated gonadal hormone exposure (39). In an alternative embodiment, Hormonal Quotient symbols (60) on the base (30) represent the Hormonal Quotient result and are viewed through a window (50) in the disc while a panel (50) disposed between the base (30) and the disc (40) having two die cut windows (52), allows the individual to set the result for a specific gender.
