The average penis size when erect is 5.7 inches in length.
When Flaccid the average Flaccid penis size is 3.67 inches.
A penis size of 4.59 inches is also normal.
Guidelines that most doctors follow when helping men decide if they need treatment for their penis and penis size state that the average size for a flaccid penis is 8.8 cm (3.5 in) , while the average size for an erect penis is 12.9 cm (5.1 in).
In addition, research also suggests that small penises are relatively rare.
The penis will shrink a little as time goes on as a result of decreased blood flow and testosterone.
By the time a man is in his 60s and 70s, he may lose a centimeter to a centimeter and a half in penis length.
An erection can last anywhere from a few minutes to a few hours.
There isn't really an average time for how long an erection should last.
In general, though, the average amount of time a person has an erection during sexual intercourse before they ejaculate is about seven minutes.
As you get older, erections might take longer to develop and might not be as firm.
You might need more direct touch to your penis to get and keep an erection.
Various risk factors can contribute to erectile dysfunction, including medical conditions, particularly diabetes or heart conditions.