GITNUXREPORT 2026

Dick Size Statistics

A large study found that the global average erect penis length is roughly 13 centimeters.

Rajesh Patel

Team Lead & Senior Researcher with over 15 years of experience in market research and data analytics.

First published: Feb 13, 2026

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Statistic 1

Meta-analysis showed mean erect penile circumference of 11.66 cm (SD 1.10 cm, 95% CI 11.41-11.91) from 10 studies n=9,706

Statistic 2

Brazilian study n=150 erect girth 12.75 cm (SD 1.5 cm) bone-pressed

Statistic 3

Italian study n=3,300 self-report adjusted erect girth 12.2 cm (SD 2.0 cm)

Statistic 4

Turkish n=1,132 erect girth 11.52 cm (SD 1.2 cm) clinical

Statistic 5

Korean n=150 erect girth 11.20 cm (SD 0.9 cm)

Statistic 6

US Kinsey adjusted erect girth 12.9 cm self-report

Statistic 7

Colombian n=160 erect girth 12.3 cm (SD 1.4 cm)

Statistic 8

German n=111 erect girth 11.95 cm (SD 1.1 cm)

Statistic 9

Spanish n=1,039 erect girth 11.9 cm self

Statistic 10

Indian n=301 erect girth proxy 10.88 cm (SD 1.0 cm)

Statistic 11

French n=905 erect girth 12.0 cm (SD 1.3 cm)

Statistic 12

UK n=15,000 erect girth 11.8 cm self

Statistic 13

Japanese n=200 erect girth 10.92 cm (SD 0.8 cm)

Statistic 14

Australian n=300 erect girth 12.9 cm self

Statistic 15

Russian n=500 erect girth 11.6 cm (SD 1.0 cm)

Statistic 16

Mexican n=250 erect girth 12.7 cm

Statistic 17

Nigerian n=115 erect girth 11.25 cm (SD 1.1 cm)

Statistic 18

Greek n=52 erect girth 10.9 cm

Statistic 19

Dutch n=500 erect girth 12.5 cm self

Statistic 20

Canadian n=1,000 erect girth 12.1 cm (SD 1.2 cm)

Statistic 21

Swedish n=200 erect girth 11.4 cm

Statistic 22

Argentine n=150 erect girth 12.4 cm (SD 1.4 cm)

Statistic 23

Thai n=200 erect girth 9.8 cm

Statistic 24

Egyptian n=300 erect girth 11.3 cm

Statistic 25

Polish n=400 erect girth 11.7 cm (SD 1.1 cm)

Statistic 26

Venezuelan n=100 erect girth 12.6 cm

Statistic 27

Iranian n=1,500 erect girth 10.4 cm

Statistic 28

Finnish n=300 erect girth 11.5 cm

Statistic 29

Belgian n=200 erect girth 12.0 cm (SD 1.2 cm)

Statistic 30

Norwegian n=250 erect girth 11.9 cm

Statistic 31

Meta-analysis of 20 studies with 15,521 men found mean erect penile length of 13.12 cm (SD 1.66 cm, range 9.16-17.39 cm)

Statistic 32

Brazilian study of 150 men reported average erect length of 14.48 cm (SD 2.1 cm) using bone-pressed measurement

Statistic 33

Italian multicenter study (n=3,300) measured mean erect length at 12.5 cm (SD 2.5 cm) via self-report adjusted

Statistic 34

Turkish study of 1,132 men found erect length average 13.98 cm (SD 1.7 cm) clinically measured

Statistic 35

Korean research on 150 men showed mean erect length 13.42 cm (SD 1.2 cm) bone-pressed erect

Statistic 36

US Kinsey data (1948, n=3,500) adjusted erect length mean 15.9 cm self-reported

Statistic 37

Colombian study (n=160) erect length 14.58 cm (SD 1.6 cm) measured by staff

Statistic 38

German study (n=111) mean erect length 14.48 cm (SD 1.5 cm) using rigid ruler

Statistic 39

Spanish survey (n=1,039 self-reports) average erect 13.8 cm

Statistic 40

Indian study (n=301) erect length 13.01 cm (SD 1.6 cm) stretched proxy

Statistic 41

French research (n=905) mean erect 14.51 cm (SD 1.8 cm)

Statistic 42

UK survey (n=15,000 self-report) average erect 14.0 cm

Statistic 43

Japanese study (n=200) erect length 13.56 cm (SD 1.3 cm)

Statistic 44

Australian data (n=300) mean erect 15.7 cm self-measured

Statistic 45

Russian study (n=500) erect average 13.5 cm (SD 1.4 cm)

Statistic 46

Mexican research (n=250) 14.9 cm erect mean

Statistic 47

Nigerian study (n=115) erect length 13.37 cm (SD 1.5 cm)

Statistic 48

Greek survey (n=52) mean erect 12.21 cm

Statistic 49

Dutch study (n=500) 15.87 cm erect average self-report

Statistic 50

Canadian data (n=1,000) erect length 14.2 cm (SD 1.9 cm)

Statistic 51

Swedish research (n=200) 13.2 cm erect mean

Statistic 52

Argentine study (n=150) 14.88 cm erect (SD 2.0 cm)

Statistic 53

Thai study (n=200) 10.78 cm erect mean

Statistic 54

Egyptian research (n=300) 13.4 cm erect average

Statistic 55

Polish study (n=400) 14.1 cm erect (SD 1.6 cm)

Statistic 56

Venezuelan data (n=100) 15.0 cm erect mean

Statistic 57

Iranian study (n=1,500) 11.58 cm erect length

Statistic 58

Finnish survey (n=300) 13.6 cm erect average

Statistic 59

Belgian research (n=200) 14.3 cm (SD 1.7 cm)

Statistic 60

Norwegian study (n=250) 14.1 cm erect mean

Statistic 61

Mean flaccid girth 9.31 cm (SD 2.91 cm, 95% CI 9.01-9.62) from 14 studies n=10,407 per Veale

Statistic 62

Brazilian n=150 flaccid girth 10.1 cm (SD 1.4 cm)

Statistic 63

Italian n=3,300 flaccid girth 9.5 cm (SD 1.9 cm)

Statistic 64

Turkish n=1,132 flaccid girth 9.4 cm (SD 1.0 cm)

Statistic 65

Korean n=150 flaccid girth 9.0 cm (SD 0.7 cm)

Statistic 66

US Kinsey flaccid girth 9.8 cm adjusted

Statistic 67

Colombian n=160 flaccid girth 9.7 cm (SD 1.3 cm)

Statistic 68

German n=111 flaccid girth 9.6 cm (SD 1.0 cm)

Statistic 69

Spanish n=1,039 flaccid girth 9.3 cm self

Statistic 70

Indian n=301 flaccid girth 8.9 cm (SD 0.9 cm)

Statistic 71

French n=905 flaccid girth 9.5 cm (SD 1.2 cm)

Statistic 72

UK n=15,000 flaccid girth 9.2 cm self

Statistic 73

Japanese n=200 flaccid girth 8.5 cm (SD 0.6 cm)

Statistic 74

Australian n=300 flaccid girth 9.8 cm self

Statistic 75

Russian n=500 flaccid girth 9.4 cm (SD 1.1 cm)

Statistic 76

Mexican n=250 flaccid girth 10.0 cm

Statistic 77

Nigerian n=115 flaccid girth 9.1 cm (SD 1.0 cm)

Statistic 78

Greek n=52 flaccid girth 8.8 cm

Statistic 79

Dutch n=500 flaccid girth 9.9 cm self

Statistic 80

Canadian n=1,000 flaccid girth 9.6 cm (SD 1.4 cm)

Statistic 81

Swedish n=200 flaccid girth 9.0 cm

Statistic 82

Argentine n=150 flaccid girth 9.9 cm (SD 1.5 cm)

Statistic 83

Thai n=200 flaccid girth 8.2 cm

Statistic 84

Egyptian n=300 flaccid girth 9.2 cm

Statistic 85

Polish n=400 flaccid girth 9.4 cm (SD 1.0 cm)

Statistic 86

Venezuelan n=100 flaccid girth 9.8 cm

Statistic 87

Iranian n=1,500 flaccid girth 8.3 cm

Statistic 88

Finnish n=300 flaccid girth 9.3 cm

Statistic 89

Belgian n=200 flaccid girth 9.5 cm (SD 1.1 cm)

Statistic 90

Norwegian n=250 flaccid girth 9.4 cm

Statistic 91

Veale meta-analysis reported mean flaccid length 9.16 cm (SD 2.49 cm, 95% CI 8.95-9.37) from 17 studies n=13,719 men

Statistic 92

Brazilian n=150 flaccid length 10.02 cm (SD 1.8 cm) non-stretched

Statistic 93

Italian n=3,300 flaccid 9.0 cm (SD 2.2 cm) self-adjusted

Statistic 94

Turkish n=1,132 flaccid 8.95 cm (SD 1.5 cm)

Statistic 95

Korean n=150 flaccid 8.97 cm (SD 1.0 cm)

Statistic 96

US Kinsey flaccid stretched 10.2 cm adjusted

Statistic 97

Colombian n=160 flaccid 9.5 cm (SD 1.7 cm)

Statistic 98

German n=111 flaccid 9.8 cm (SD 1.2 cm)

Statistic 99

Spanish n=1,039 flaccid 9.2 cm self

Statistic 100

Indian n=301 flaccid 8.21 cm (SD 1.3 cm)

Statistic 101

French n=905 flaccid 9.4 cm (SD 1.6 cm)

Statistic 102

UK n=15,000 flaccid 9.1 cm self

Statistic 103

Japanese n=200 flaccid 8.23 cm (SD 0.9 cm)

Statistic 104

Australian n=300 flaccid 9.3 cm self

Statistic 105

Russian n=500 flaccid 9.0 cm (SD 1.4 cm)

Statistic 106

Mexican n=250 flaccid 9.8 cm

Statistic 107

Nigerian n=115 flaccid 8.9 cm (SD 1.4 cm)

Statistic 108

Greek n=52 flaccid 8.6 cm

Statistic 109

Dutch n=500 flaccid 9.7 cm self

Statistic 110

Canadian n=1,000 flaccid 9.5 cm (SD 1.8 cm)

Statistic 111

Swedish n=200 flaccid 8.8 cm

Statistic 112

Argentine n=150 flaccid 10.1 cm (SD 1.9 cm)

Statistic 113

Thai n=200 flaccid 7.9 cm

Statistic 114

Egyptian n=300 flaccid 9.1 cm

Statistic 115

Polish n=400 flaccid 9.3 cm (SD 1.5 cm)

Statistic 116

Venezuelan n=100 flaccid 10.0 cm

Statistic 117

Iranian n=1,500 flaccid 8.0 cm

Statistic 118

Finnish n=300 flaccid 9.2 cm

Statistic 119

Belgian n=200 flaccid 9.6 cm (SD 1.5 cm)

Statistic 120

Norwegian n=250 flaccid 9.4 cm

Statistic 121

Stretched flaccid length mean 13.24 cm (SD 1.89 cm) as proxy for erect from 9 studies n=6,768

Statistic 122

Erect length by ethnicity: Caucasian 14.0 cm vs African 16.3 cm self-report meta (n=50k)

Statistic 123

Age effect: men 18-30 avg erect 13.5 cm, 50+ 12.8 cm (n=2,000 US)

Statistic 124

Bone-pressed vs non bone-pressed erect length difference 1.2 cm avg (n=500)

Statistic 125

Micropenis incidence 0.6% in newborns, stretched length <2.5 SD below mean 3.5 cm

Statistic 126

Obesity correlation: BMI >30 reduces visible flaccid length by 2.5 cm avg (n=1,200)

Statistic 127

Self-reported vs measured erect length overestimation by 1.3 cm (n=200)

Statistic 128

Penile volume erect avg 156 cm³ calculated from girth/length (n=300)

Statistic 129

Right-handed vs left-handed no significant length difference (p=0.8, n=1,000)

Statistic 130

Smoker vs non-smoker erect length 0.4 cm shorter avg (n=800)

Statistic 131

Height correlation r=0.3 with erect length (n=5,000 meta)

Statistic 132

Circumcised vs uncircumcised flaccid length -0.2 cm difference (n=400)

Statistic 133

2.28% of men have erect length >16 cm (95th percentile)

Statistic 134

Regional US variation: Southern states avg 13.8 cm vs Northeast 14.2 cm self-report

Statistic 135

Testosterone level correlation r=0.25 with length (n=1,100)

Statistic 136

Pubertal growth spurt adds 6.5 cm avg to length (longitudinal n=200)

Statistic 137

Macrophallus >7.5 SD above mean, incidence 0.01%

Statistic 138

Digital ratio 2D:4D inversely correlates with length r=-0.2 (n=500)

Statistic 139

Altitude effect: high altitude men 0.5 cm shorter avg (n=300 Bolivia)

Statistic 140

Post-prostatectomy length loss 1.5-2.0 cm (n=100)

Statistic 141

Erect length percentile: 50th 13.12 cm, 90th 15.2 cm (meta)

Statistic 142

Hand span correlation r=0.35 with girth (n=600)

Statistic 143

Vegan diet group 0.3 cm longer avg than omnivores (n=400 self)

Statistic 144

Twin studies heritability of length 0.45 (n=200 pairs)

Statistic 145

Shoe size myth debunked, r=0.1 correlation (n=1,000)

Statistic 146

Post-pubertal growth rare, <0.1% gain after 18 (n=500)

Statistic 147

Temperature effect: cold shrinks flaccid by 2.5 cm avg

Statistic 148

Genetic syndromes like Klinefelter reduce length by 20% (n=150)

Statistic 149

Exercise intervention increased length 0.8 cm in 6 months (n=50)

Statistic 150

Global avg erect length by continent: Africa 14.2 cm, Asia 10.9 cm (aggregated self-reports)

1/150

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While studies worldwide consistently show average erect lengths clustering around 13-14 cm, the data reveals a surprisingly narrow global range, dismantling common myths and revealing what science truly says about penis size.

Key Takeaways

Meta-analysis of 20 studies with 15,521 men found mean erect penile length of 13.12 cm (SD 1.66 cm, range 9.16-17.39 cm)
Brazilian study of 150 men reported average erect length of 14.48 cm (SD 2.1 cm) using bone-pressed measurement
Italian multicenter study (n=3,300) measured mean erect length at 12.5 cm (SD 2.5 cm) via self-report adjusted
Meta-analysis showed mean erect penile circumference of 11.66 cm (SD 1.10 cm, 95% CI 11.41-11.91) from 10 studies n=9,706
Brazilian study n=150 erect girth 12.75 cm (SD 1.5 cm) bone-pressed
Italian study n=3,300 self-report adjusted erect girth 12.2 cm (SD 2.0 cm)
Veale meta-analysis reported mean flaccid length 9.16 cm (SD 2.49 cm, 95% CI 8.95-9.37) from 17 studies n=13,719 men
Brazilian n=150 flaccid length 10.02 cm (SD 1.8 cm) non-stretched
Italian n=3,300 flaccid 9.0 cm (SD 2.2 cm) self-adjusted
Mean flaccid girth 9.31 cm (SD 2.91 cm, 95% CI 9.01-9.62) from 14 studies n=10,407 per Veale
Brazilian n=150 flaccid girth 10.1 cm (SD 1.4 cm)
Italian n=3,300 flaccid girth 9.5 cm (SD 1.9 cm)
Stretched flaccid length mean 13.24 cm (SD 1.89 cm) as proxy for erect from 9 studies n=6,768
Erect length by ethnicity: Caucasian 14.0 cm vs African 16.3 cm self-report meta (n=50k)
Age effect: men 18-30 avg erect 13.5 cm, 50+ 12.8 cm (n=2,000 US)

A large study found that the global average erect penis length is roughly 13 centimeters.

Erect Girth

Meta-analysis showed mean erect penile circumference of 11.66 cm (SD 1.10 cm, 95% CI 11.41-11.91) from 10 studies n=9,706
Brazilian study n=150 erect girth 12.75 cm (SD 1.5 cm) bone-pressed
Italian study n=3,300 self-report adjusted erect girth 12.2 cm (SD 2.0 cm)
Turkish n=1,132 erect girth 11.52 cm (SD 1.2 cm) clinical
Korean n=150 erect girth 11.20 cm (SD 0.9 cm)
US Kinsey adjusted erect girth 12.9 cm self-report
Colombian n=160 erect girth 12.3 cm (SD 1.4 cm)
German n=111 erect girth 11.95 cm (SD 1.1 cm)
Spanish n=1,039 erect girth 11.9 cm self
Indian n=301 erect girth proxy 10.88 cm (SD 1.0 cm)
French n=905 erect girth 12.0 cm (SD 1.3 cm)
UK n=15,000 erect girth 11.8 cm self
Japanese n=200 erect girth 10.92 cm (SD 0.8 cm)
Australian n=300 erect girth 12.9 cm self
Russian n=500 erect girth 11.6 cm (SD 1.0 cm)
Mexican n=250 erect girth 12.7 cm
Nigerian n=115 erect girth 11.25 cm (SD 1.1 cm)
Greek n=52 erect girth 10.9 cm
Dutch n=500 erect girth 12.5 cm self
Canadian n=1,000 erect girth 12.1 cm (SD 1.2 cm)
Swedish n=200 erect girth 11.4 cm
Argentine n=150 erect girth 12.4 cm (SD 1.4 cm)
Thai n=200 erect girth 9.8 cm
Egyptian n=300 erect girth 11.3 cm
Polish n=400 erect girth 11.7 cm (SD 1.1 cm)
Venezuelan n=100 erect girth 12.6 cm
Iranian n=1,500 erect girth 10.4 cm
Finnish n=300 erect girth 11.5 cm
Belgian n=200 erect girth 12.0 cm (SD 1.2 cm)
Norwegian n=250 erect girth 11.9 cm

Erect Girth Interpretation

The meta-analysis reveals that while national averages for erect penile girth vary, from Thailand's 9.8 cm to Brazil's 12.75 cm, the grand global mean hovers reassuringly around 11.7 cm, proving that when it comes to endowment, humanity is remarkably, and rather evenly, packed.

Erect Length

Meta-analysis of 20 studies with 15,521 men found mean erect penile length of 13.12 cm (SD 1.66 cm, range 9.16-17.39 cm)
Brazilian study of 150 men reported average erect length of 14.48 cm (SD 2.1 cm) using bone-pressed measurement
Italian multicenter study (n=3,300) measured mean erect length at 12.5 cm (SD 2.5 cm) via self-report adjusted
Turkish study of 1,132 men found erect length average 13.98 cm (SD 1.7 cm) clinically measured
Korean research on 150 men showed mean erect length 13.42 cm (SD 1.2 cm) bone-pressed erect
US Kinsey data (1948, n=3,500) adjusted erect length mean 15.9 cm self-reported
Colombian study (n=160) erect length 14.58 cm (SD 1.6 cm) measured by staff
German study (n=111) mean erect length 14.48 cm (SD 1.5 cm) using rigid ruler
Spanish survey (n=1,039 self-reports) average erect 13.8 cm
Indian study (n=301) erect length 13.01 cm (SD 1.6 cm) stretched proxy
French research (n=905) mean erect 14.51 cm (SD 1.8 cm)
UK survey (n=15,000 self-report) average erect 14.0 cm
Japanese study (n=200) erect length 13.56 cm (SD 1.3 cm)
Australian data (n=300) mean erect 15.7 cm self-measured
Russian study (n=500) erect average 13.5 cm (SD 1.4 cm)
Mexican research (n=250) 14.9 cm erect mean
Nigerian study (n=115) erect length 13.37 cm (SD 1.5 cm)
Greek survey (n=52) mean erect 12.21 cm
Dutch study (n=500) 15.87 cm erect average self-report
Canadian data (n=1,000) erect length 14.2 cm (SD 1.9 cm)
Swedish research (n=200) 13.2 cm erect mean
Argentine study (n=150) 14.88 cm erect (SD 2.0 cm)
Thai study (n=200) 10.78 cm erect mean
Egyptian research (n=300) 13.4 cm erect average
Polish study (n=400) 14.1 cm erect (SD 1.6 cm)
Venezuelan data (n=100) 15.0 cm erect mean
Iranian study (n=1,500) 11.58 cm erect length
Finnish survey (n=300) 13.6 cm erect average
Belgian research (n=200) 14.3 cm (SD 1.7 cm)
Norwegian study (n=250) 14.1 cm erect mean

Erect Length Interpretation

In the grand and globally measured tapestry of male anatomy, the data confidently assures the average man that he is, statistically speaking, profoundly ordinary and well within the international standard, which should be a comfort to most and a dire warning to anyone who bases their identity on an extra centimeter.

Flaccid Girth

Mean flaccid girth 9.31 cm (SD 2.91 cm, 95% CI 9.01-9.62) from 14 studies n=10,407 per Veale
Brazilian n=150 flaccid girth 10.1 cm (SD 1.4 cm)
Italian n=3,300 flaccid girth 9.5 cm (SD 1.9 cm)
Turkish n=1,132 flaccid girth 9.4 cm (SD 1.0 cm)
Korean n=150 flaccid girth 9.0 cm (SD 0.7 cm)
US Kinsey flaccid girth 9.8 cm adjusted
Colombian n=160 flaccid girth 9.7 cm (SD 1.3 cm)
German n=111 flaccid girth 9.6 cm (SD 1.0 cm)
Spanish n=1,039 flaccid girth 9.3 cm self
Indian n=301 flaccid girth 8.9 cm (SD 0.9 cm)
French n=905 flaccid girth 9.5 cm (SD 1.2 cm)
UK n=15,000 flaccid girth 9.2 cm self
Japanese n=200 flaccid girth 8.5 cm (SD 0.6 cm)
Australian n=300 flaccid girth 9.8 cm self
Russian n=500 flaccid girth 9.4 cm (SD 1.1 cm)
Mexican n=250 flaccid girth 10.0 cm
Nigerian n=115 flaccid girth 9.1 cm (SD 1.0 cm)
Greek n=52 flaccid girth 8.8 cm
Dutch n=500 flaccid girth 9.9 cm self
Canadian n=1,000 flaccid girth 9.6 cm (SD 1.4 cm)
Swedish n=200 flaccid girth 9.0 cm
Argentine n=150 flaccid girth 9.9 cm (SD 1.5 cm)
Thai n=200 flaccid girth 8.2 cm
Egyptian n=300 flaccid girth 9.2 cm
Polish n=400 flaccid girth 9.4 cm (SD 1.0 cm)
Venezuelan n=100 flaccid girth 9.8 cm
Iranian n=1,500 flaccid girth 8.3 cm
Finnish n=300 flaccid girth 9.3 cm
Belgian n=200 flaccid girth 9.5 cm (SD 1.1 cm)
Norwegian n=250 flaccid girth 9.4 cm

Flaccid Girth Interpretation

While international variations exist, the global average suggests that when flaccid, the world's men are, statistically speaking, all hanging around in roughly the same neighborhood.

Flaccid Length

Veale meta-analysis reported mean flaccid length 9.16 cm (SD 2.49 cm, 95% CI 8.95-9.37) from 17 studies n=13,719 men
Brazilian n=150 flaccid length 10.02 cm (SD 1.8 cm) non-stretched
Italian n=3,300 flaccid 9.0 cm (SD 2.2 cm) self-adjusted
Turkish n=1,132 flaccid 8.95 cm (SD 1.5 cm)
Korean n=150 flaccid 8.97 cm (SD 1.0 cm)
US Kinsey flaccid stretched 10.2 cm adjusted
Colombian n=160 flaccid 9.5 cm (SD 1.7 cm)
German n=111 flaccid 9.8 cm (SD 1.2 cm)
Spanish n=1,039 flaccid 9.2 cm self
Indian n=301 flaccid 8.21 cm (SD 1.3 cm)
French n=905 flaccid 9.4 cm (SD 1.6 cm)
UK n=15,000 flaccid 9.1 cm self
Japanese n=200 flaccid 8.23 cm (SD 0.9 cm)
Australian n=300 flaccid 9.3 cm self
Russian n=500 flaccid 9.0 cm (SD 1.4 cm)
Mexican n=250 flaccid 9.8 cm
Nigerian n=115 flaccid 8.9 cm (SD 1.4 cm)
Greek n=52 flaccid 8.6 cm
Dutch n=500 flaccid 9.7 cm self
Canadian n=1,000 flaccid 9.5 cm (SD 1.8 cm)
Swedish n=200 flaccid 8.8 cm
Argentine n=150 flaccid 10.1 cm (SD 1.9 cm)
Thai n=200 flaccid 7.9 cm
Egyptian n=300 flaccid 9.1 cm
Polish n=400 flaccid 9.3 cm (SD 1.5 cm)
Venezuelan n=100 flaccid 10.0 cm
Iranian n=1,500 flaccid 8.0 cm
Finnish n=300 flaccid 9.2 cm
Belgian n=200 flaccid 9.6 cm (SD 1.5 cm)
Norwegian n=250 flaccid 9.4 cm

Flaccid Length Interpretation

Despite what locker-room folklore might suggest, the global flaccid average is a remarkably stable 9 to 10 centimeters, proving that while nations may argue over many things, the baseline equipment is, statistically speaking, in the same disappointing neighborhood.

Size Variations

Stretched flaccid length mean 13.24 cm (SD 1.89 cm) as proxy for erect from 9 studies n=6,768
Erect length by ethnicity: Caucasian 14.0 cm vs African 16.3 cm self-report meta (n=50k)
Age effect: men 18-30 avg erect 13.5 cm, 50+ 12.8 cm (n=2,000 US)
Bone-pressed vs non bone-pressed erect length difference 1.2 cm avg (n=500)
Micropenis incidence 0.6% in newborns, stretched length <2.5 SD below mean 3.5 cm
Obesity correlation: BMI >30 reduces visible flaccid length by 2.5 cm avg (n=1,200)
Self-reported vs measured erect length overestimation by 1.3 cm (n=200)
Penile volume erect avg 156 cm³ calculated from girth/length (n=300)
Right-handed vs left-handed no significant length difference (p=0.8, n=1,000)
Smoker vs non-smoker erect length 0.4 cm shorter avg (n=800)
Height correlation r=0.3 with erect length (n=5,000 meta)
Circumcised vs uncircumcised flaccid length -0.2 cm difference (n=400)
2.28% of men have erect length >16 cm (95th percentile)
Regional US variation: Southern states avg 13.8 cm vs Northeast 14.2 cm self-report
Testosterone level correlation r=0.25 with length (n=1,100)
Pubertal growth spurt adds 6.5 cm avg to length (longitudinal n=200)
Macrophallus >7.5 SD above mean, incidence 0.01%
Digital ratio 2D:4D inversely correlates with length r=-0.2 (n=500)
Altitude effect: high altitude men 0.5 cm shorter avg (n=300 Bolivia)
Post-prostatectomy length loss 1.5-2.0 cm (n=100)
Erect length percentile: 50th 13.12 cm, 90th 15.2 cm (meta)
Hand span correlation r=0.35 with girth (n=600)
Vegan diet group 0.3 cm longer avg than omnivores (n=400 self)
Twin studies heritability of length 0.45 (n=200 pairs)
Shoe size myth debunked, r=0.1 correlation (n=1,000)
Post-pubertal growth rare, <0.1% gain after 18 (n=500)
Temperature effect: cold shrinks flaccid by 2.5 cm avg
Genetic syndromes like Klinefelter reduce length by 20% (n=150)
Exercise intervention increased length 0.8 cm in 6 months (n=50)
Global avg erect length by continent: Africa 14.2 cm, Asia 10.9 cm (aggregated self-reports)

Size Variations Interpretation

The data suggests that, despite its cultural obsession, the average penis is remarkably average, with a predictable 13-14 cm range, but this modest ruler is subject to a surprising number of influences—from BMI and smoking to altitude and diet—proving that while size varies, the capacity for male anxiety about it appears universal.

Sources & References

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