You probably have a good sense of where you fit in the distribution of size for
more commonly visible measurements of body size: height, size of hands, feet,
weight and so on. However, unless you spend a lot of time in a nudist
environment, there are, understandably other measurements for which you dont
have a good sense of where you fit. Penis size is an obvious example. Its also
one that can make a lot of people uncomfortable. They worry about whether they
are abnormal, too small, too large, and so on. As with most characteristics
of human anatomy, there is a lot of individual variation. You can differ
substantially from average without being unusual or freakish and without any
need for concern or medical intervention. If you have concerns, by all means
consult a doctor, but chances are good that you have nothing to worry about.
On the other hand, there is always a fascination with people who are
significantly different for the normal range. This applies to height and
weight, size of hands and feet, and, yes, also to penis size. So what
is normal? Surprisingly, perhaps, given how common concerns about penis size
seem to be, there are very little good data based on large samples. There are
data, though, and the numbers seem to agree well enough to suggest that the
sample size must be large enough to give reasonably accurate measures of
averages and distributions. A good summary of recent data can be found at
There are additional links there to other studies as well.
The average length of an erect penis (measured along the top) is 16.1 cm (6.34
90% of measurements fall between 10 and 21 cm (4 and 8.25 in).
The average girth of an erect penis is 12.3 cm (4.84 in).
The average length of the flaccid penis is about 9 cm (3.5 in) with most
measurements falling between 5 cm (2 in) and 12.5 cm (5 in).
These numbers appear to be approximately independent of such parameters as age
(post-puberty) and nationality despite any anecdotal information you may have
heard to the contrary, though reliable data on such variations is quite limited.
You can decide what big is, but just as you probably wouldnt particularly
label someone as tall unless they were in the top few percent, you probably
wouldnt want to label someones penis as big unless it was larger than the
normal ranges quoted above (greater than 21 cm erect length, 12.5 cm flaccid
length). There also appears to be a large variability in the ratio of the erect
length to flaccid length. Average is about 1.8, but ratios from about 1 to 4
are not uncommon.
You can turn up a lot of additional reading material on this subject with a
Google search on:
Average penis size
And if you are concerned about appearance, you might also want to look at the
Penis size page,
This site has many pictures of both average and more unusual penises that you
can compare to your own.
I hope this information helps you to better understand what is normal
and big. Again, if you have concerns, consult your doctor. You may also see
many advertisements for companies that claim to help you increase penis size. I
would caution you against considering their services because of questionable
efficacy in many cases, and because it is unlikely that there is any real
reason why you should need to change your size.