The purpose of the present disclosure is to provide a vehicle-use measurement device for measuring a physical quantity, wherein the device can obtain a correct measurement result even in a case where an abnormality has occurred in a sensor. A vehicle-use measurement device (20) comprises: a measurement value acquiring unit (221); an external information acquiring unit (222); an abnormality determining unit (223); and a compensating unit (224). The measurement value acquiring unit (221) acquires a physical quantity measurement value from a physical quantity sensor, namely "particle sensor (200)" that measures a physical quantity. The external information acquiring unit (222) acquires external information indicating the value of a physical quantity separately from the physical quantity measurement value acquired from the physical quantity sensor. The abnormality determining unit (223) performs abnormality determination for determining whether there is an abnormality in the physical quantity sensor on the basis of the difference between the physical quantity measurement value and the external information. In the case where the result of the abnormality determination performed by the abnormality determining unit (223) indicates that there is an abnormality in the physical quantity sensor, the compensating unit (224) compensates the physical quantity measurement value so as to bring the physical quantity measurement value close to the physical quantity value of the external information.