A measuring device includes a laser rangefinder, a retractable tape measure and a connecting assembly. The laser rangefinder is configured to transmit a light pulse to a target and receive a reflected light pulse from the target for measuring the distance between the rangefinder and the target. The tape measure has a housing and a flexible measuring tape enclosed in the housing. The housing defines a tape outlet opening from which the measuring tape is movable from a retracted position to an extended position. The connecting assembly is disposed at the junction between the laser rangefinder and the tape measure to have the laser rangefinder and the tape measure be detachably mounted together.