Auditory evoked potentials (AEPs) are measured for auditory threshold estimation and neuro-otologic assessment and are generally evoked by short-duration signals. The purpose of this paper is to provide information about the calibration of short-duration stimuli for the recording of AEPs. Since there are no national standards concerning the measurement of short-duration stimuli, calibration of shortduration stimuli are introduced in reference to the newest version of international standards. Especially, the behavioral and physical calibration of clicks and tone-bursts used in the AEP system for early AEPs are focused on and explained. Two of the recent international standards (IEC 60645-3:2007, ISO 389-6:2007) can help to guide the calibration of short-duration stimuli. In these standards, the reference equivalent threshold sound pressure levels based on the peak-to-peak equivalent sound pressure level (p-p.e.SPL) is defined as the calibration value of clicks and tone-bursts. We need to quantify the level of short-duration stimuli using the p-p.e.SPL approach. However, some researchers have found that even these standards are still lacking or inadequate. This paper will provide useful information about the calibration of short-duration stimuli to technicians and audiologists who regularly check the AEP system. It is also important to understand additional measures (peak SPL, baseline-to-peak equivalent SPL) for quantifying short-duration stimulus levels.