Length for girls

Here are the average sizes for teens:

The following figures are based on erect penises (with boners) and have been taken on averages from over 5,000 patients.

Age 11 - 3 inches

Age 12 - 3.8 inches

Age 13 - 4.8 inches

Age 14 - 5.4 inches

Age 15 - 5.6 inches

Age 16 - 5.7 inches

Age 17 - 5.8 inches

Age 18 - 5.8 inches

Age 19+ - 5.9 inches

The correct way to measure:

First, make it be the “most erect”. You have to be sure if you have a 100 % erection. The best way is to measure it from the side.

Hold your penis with one hand below the head and place the ruler next to it with your other hand. The ruler should be slightly pressing against your pubic bone.

If, as is common, your penis curves, it is best to measure with a tape rather than a ruler.

DO NOT exaggerate the measurement as this defeats the purpose.

Of course, teen penis size as well as grown men penis size differs for individuals and teens will go through puberty at different ages.

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