The nicotine content depends on what the package states, with the usual labeling ranging from none to extra high, while the range varies from companies the following numbers are in the right range—0 mg for none, 6 mg for low, 11 mg for medium, 16 mg for high, and 20 mg for extra high.
An average smoker takes about 15 puffs on a cigarette, which ranges from 1 to 2 mg of nicotine consumption per cigarette. Comparatively, 15 puffs on a 16 mg cartridge would equal about 0.15 mg of nicotine. Thus, the nicotine absorption is far less in an e-cigarette than a regular cigarette.