Beware of miracle methods advertised online, like pills and oils, that can do more harm than good to your penis and your pocketbook. You can, but most of the methods available only offer a temporary, marginal increase in size. So to recap, research says the average penis size is a lot smaller than what most people believe it is and usually looks nothing like what you see in porn. Around 95 percent of penises do fall into the average range.Likewise, an erect penis of 3.94 inches is in the 5 percentile, meaning that only 5 out of 100 would have a penis shorter than 3.94 inches.For some perspective, an erect penis of 6.3 inches falls into the 95 percentile, meaning that only 5 out of 100 people would have a penis longer than 6.3 inches.Based on various reports, 45 percent of people with penises wish they had a larger penis, including those who have average-sized ones.Many people with penises are under the impression that the average package is over 6 inches long - a notion that researchers partially attribute to studies that were based on self-reported measurements.Around 85 percent of people with penises overestimate what the average penis size actually is.When it comes to girth, the average is 3.66 for a flaccid penis and 4.59 inches for an erect penis.Let’s start with some interesting numbers: