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      PENIS-SIZE SURVEY
      by Richard Edwards (summarized by JB)

      IN SHORT..

      According to the statistics, your penis is:
      SHORT
      AVERAGE
      LONG
      if erection is
      if erection is
      if erection is
      5.6"
      6.4"
      7.1"
      long
      long
      long
        THIN
      AVERAGE
      THICK
      if its circumference is
      if its circumference is
      if its circumference is
      4.6"
      5.0"
      5.4"

        "But why? It's not raining yet!"
      • The average flaccid penis is 3.4" long. The average head is 1.6".
      • During an erection, the length of the penis doubles (198%)
      • Half the people (48%) have a straight erection, 1/3 (28%) penises deviate to the left or right, 1/4 (24%) have a bend in the shaft.
      • Taller men have longer penises.
      • Blacks have longer flaccid penises than caucasians, but shorter erections.
      • The length of the erection has nothing to do with being cut/uncut or gay/bisexual/hetherosexual. (But gays prefer to be uncut.)
      • Penis grows until 16, then seemingly becomes slightly shorter from 50s.

      (Further details follow.)

        Figure 1. The bell-shaped distribution of erect penis lengths

      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
      Please note that all measurements are expressed in metric units with corresponding imperial units in brackets.
      Mean± Standard Deviation
      95% Confidence Interval
      Maximum
      Minimum
      LENGTH OF FLACCID PENIS 86.3mm(3.4")± 27.0(1.1) 85.2mm(3.4")- 87.4mm(3.4") 157mm(6.2") 25mm(1.0")
      LENGTH OF ERECT PENIS 161.5mm(6.4")± 31.5(1.2) 160.2mm(6.3")- 162.7mm(6.4") 260mm(10.2") 68(2.7")
      CIRCUMFERENCE OF ERECT PENIS 127.6mm(5.0")± 25.5(1.0) 126.6mm(5.0")- 128.7mm(5.1") 200mm(7.9") 60mm(2.4")
      LENGTH OF HEAD 39.5mm(1.6")± 9.9(0.4) 38.5mm(1.5")- 39.5mm(1.6") 76mm(3.0") 12mm(0.5")

      PENIS DIMENSIONS FOR MEN 18 YEARS AND OLDER
      PERCENTILE
       
      FLACCID
      ERECT
      CIRCUMFERENCE
      0%
      men have less than
      25(1.0")
      68(2.7")
      60(2.4")
      10%
      men have less than
      50(2.0")
      125(4.9")
      95(3.7")
      20%
      men have less than
      60(2.4")
      140(5.5")
      110(4.3")
      30%
      men have less than
      73(2.9")
      147(5.8")
      120(4.7")
      40%
      men have less than
      80(3.1")
      152(6.0")
      125(4.9")
      50%
      men have less than
      88(3.5")
      160(6.3")
      130(5.1")
      60%
      men have less than
      95(3.7")
      170(6.7")
      134(5.3")
      70%
      men have less than
      100(3.9")
      176(6.9")
      140(5.5")
      80%
      men have less than
      110(4.3")
      185(7.3")
      150(5.9")
      90%
      men have less than
      120(4.7")
      200(7.9")
      160(6.3")
      100%
      men have less than
      157(6.2")
      260(10.2")
      205(8.1")

      PENIS SIZE AND RACE
      Caucasians165 (6.5")
      Black155 (6.1")
      Hispanic149 (5.9")
      East Asian140 (5.5")
      It would appear that, contrary to popular myth, Black males have shorter erect lengths than their Caucasian counterparts. (However, due to the small sample size and large variation in lengths, this difference is not statistically significant.) The average flaccid length among Blacks however was 93.8mm (3.7") compared to 87.7mm (3.4") for Caucasians, which may be responsible for the impression that Black men have greater erect dimensions.

      The figure to the left summarizes the results of question 44, in which men were asked to rate members of their own ethnic group with respect to size. (Note that the vast majority of Black subjects stated that they tended to be well endowed; an opinion which was not borne out by the results of this study.)

      • The average erect penis length increases until the age of 16 [122 (4.8") at 12, 135 (5.3") at 13, 145 (5.7") at 14, 150 (5.9") at 15, 157~163 (6.2"~6.4") until 40s, 160 (6.3") above 50], then slightly declines in length among older men. (Unfortunately, due to the modest sample size of such individuals, it was not possible to determine whether this was a statistical anomaly or an anatomical consequence of the aging process.)

      • During an erection, the average increase in penis size is 197.9%. However, for men whose flaccid penis measured 80 mm (3.1") or less, the increase was 263.2%, compared to 165.3% for those greater than this length. 48% stated that their penis was straight when erect, 28% reported a deviation to the left or right and 24% claimed to have a bend (presumably in the shaft).

      • There's no significant difference in erect length between circumcised and uncircumcised individuals. Overall, 70% of the subjects were circumcised, 27% were uncircumcised and 3% did not specify their circumcision status. (Of the 633 men responding outside of the U.S.A. and Canada who specified their status, 64% were uncircumcised. Not unexpectedly, this compares to 40% of Canadians and only 15% of Americans.) 72% of circumcised hethero males expressed contentment with their circumcision status while only 58% of circumcised gay or bisexuals felt the same way.

      • There is no statistical difference in erect penis length amongst gay, bisexual or hethero men.

      • There exists a strong relationship between erect penis length and height (the taller one is, the bigger his penis), and a weak correlation between penis size and "middle finger to palm" distance, length of thumb or of big toe. But no correlation with the shoe size.

      • Well-endowed men had more sexual partners per year than their average or modestly endowed counterparts. The data reveals that these men were more self-confident which may explain this finding.

      (From a sample of over 3,100 subjects. Source: http://www.connection.com/~dickie/result.html)

      OTHER RESEARCHES

      Dr.E.A.Gomez de Diego's researches (table on the left) and those of the Kinsey Institute's (table to the right) agree that the average erected penis is 15.2cm long, and 12.7cm thick.

      Length
      (cm.)
      % of men Circumf.
      (cm.)
      % of men
      10,2 0,3 5,1 0,4
      10,8 0,2 5,7 1,2
      11,4 1,7 6,3 0,3
      12,1 0,8 6,9 0,3
      12,7 2,0 7,6 0,4
      13,3 4,4 8,2 0,4
      13,9 10,7 8,8 0,9
      14,6 8,0 9,5 1,1
      15,2 23,9 10,2 6,3
      15,9 8,8 10,8 6,3
      16,5 14,3 11,4 17,1
      17,1 5,7 12,1 11,7
      17,8 9,5 12,7 24,1
      18,4 1,8 13,3 9,9
      19,1 2,9 13,9 11,5
      19,7 1,0 14,6 3,0
      20,3 1,0 15,2 3,9
      20,9 0,3 15,8 0,5
      Source: Dr. Eduardo A. Gomez de Diego

      Length
      (cm.)

      % of men

      Circumf.
      (cm.)

      % of men

      9,5 0.2 3,8 0.3
      10,1 0.3 4,4 0.4
      10,8 0.2 5,1 0.4
      11,4 1.7 5,7 1.2
      12,0 0.8 6,3 0.3
      12,7 2.0 7,0 0.3
      13,3 4.4 7,6 0.4
      13,9 10.7 8,2 0.4
      14,6 8.0 8,9 0.9
      15,2 23.9 9,5 1.1
      15,9 8.8 10,1 6.3
      16,5 14.3 10,8 6.3
      17,1 5.7 11,4 17.1
      17,8 9.5 12,0 11.7
      18,4 1.8 12,7 24.1
      19,0 2.9 13,3 9.9
      19,7 1.0 13,9 11.5
      20,3 1.0 14,6 3.0
      20,9 0.3 15,2 3.9
      21,6 0.3 15,9 0.5
      22,2 0.1 16,5 0.5
      22,9 0.1 17,1 0.1
      Source: Kinsey Institute