The most accurate measurement of the size of a human penis can be derived from several readings at different times since there is natural variability in size depending upon arousal level, time of day, room temperature, frequency of sexual activity, and reliability of measurement.

Penis size can be a genuine medical question. Here is a chart with normal penis size range by age from birth to .

Average Penis Girth Charts. From the chart above, is demonstrates that over 79% aged between the ages of 19 to 35 years old of men has a erected penis girth between 4.00 inches to 5.5 inches and an average length of around 5.5 inches to 6.5 inches.

Here we can see the erection process, it is shown how penises grow to get fully erected. Showing that although big flaccid penis will probably get bigger when erected, flaccid size is not always an indicator of how big it will get.

Researchers tried to answer one of the most important questions to mankind: In which country do men have the largest penis size? (*couch*). Well, in African and South-American countries men seem to have the largest, and in Asian countries the smallest.

Sevaeral sources have been used: http://www.afriquinfos.com/articles/2012/6/25/tailles-penis-pays-etes-vous-dans-moyenne-204961.asp http://www.andromedical.com/products/penis-enlargement-products/world-penis-sizes/ http://www.targetmap.com/viewer.aspx?reportId=3073

Comments and opinions by visitors about penissizedebate.com and penis size in general.

Guys concerned about their penis size during for two major reasons — what other guys think or their ability to have a meaningful sex life.

As with any other bodily attribute, the length and girth of the penis can be highly variable between mammals of different species. In many mammals, the size of a flaccid penis is smaller than its erect size.

Chart of average penis length by age. From the illustration chart above it shows the penis growth rate starting from the age of 10 to 24 years and over.