what percentage of nicotine is in a cigarette

The amount of nicotine in a cigarette can vary depending on the brand, but on average, a single cigarette contains about 10 to 12 milligrams (mg) of nicotine. However, not all of the nicotine is inhaled as the cigarette burns, and an average smoker inhales about 1.1 to 1.8 mg of nicotine per cigarette, which equates to 22 to 36 mg per pack of 20 cigarettes. Therefore, a smoker absorbs between 1 milligram and 2 milligrams of nicotine from a single cigarette. It is important to note that nicotine is not the only harmful substance in cigarettes, and the average unlit cigarette can contain up to 600 different substances.