The Definitive Penis Size Survey (idea)

Mean Values of Self-Ranked Endowment Status

Variable             Modest         Average        Endowed
Erect Length         141.5mm (5.6") 161.8mm (6.4") 181.1mm (7.1") 
Erect Circumference  117.6mm (4.6") 127.4mm (5.0") 137.8mm (5.4")

Vital Penis Statistics for Men 18 Years and Older

                Mean±Standard  Max    Min
                Deviation
Length of       86.3mm± 27.0   157mm  25mm
Flaccid Penis
Length of       161.5mm± 31.5  260mm  68mm
Erect Penis
Circumference   127.6mm± 25.5  200mm  60mm
of Erect Penis
Length of       39.5mm± 9.9    76mm   12mm
Head

Length of       3.4"± 1.1      6.2"  1.0"  
Flaccid Penis
Length of       6.4"± 1.2      10.2" 2.7" 
Erect Penis
Circumference   5.0"± 1.0      7.9"  2.4"  
of Erect Penis
Length of       1.6"± 0.4      3.0"  0.5"
Head