A measuring apparatus includes a light source configured to output light in a mid-infrared region, a detector configured to irradiate a measuring object with the light output from the light source and detect reflected light reflected by the measuring object, and a blood glucose level measuring device configured to measure a blood glucose level of the measuring object. A wavenumber between a plurality of absorption peak wavenumbers of glucose is used as a blood glucose level measuring wavenumber for measuring the blood glucose level.