While it's easy to get lost in a sea of self-reported exaggerations, a comprehensive global meta-analysis reveals the average erect penis length to be a far more modest 13.12 cm.
Key Takeaways
- Average erect penis length in global meta-analysis is 13.12 cm
- Average stretched flaccid length is 13.24 cm from 15,000 men
- Erect length mean 14.9 cm in Brazilian men (n=150)
- Average flaccid length 9.16 cm globally
- Flaccid girth 9.31 cm mean
- Brazilian flaccid 12.2 cm stretched
- Erect lengths higher in African populations by 1-2 cm avg.
- East Asian erect averages 12-13 cm vs Caucasian 13-14 cm
- South American erect 14-15 cm in multiple studies
- Self-reported erect lengths overestimate by 1.3 cm
- Measured erect 13.12 cm vs self-report 15.5 cm avg.
- Clinical bone-pressed erect more accurate than non
- Erect length peaks at age 20-30 then declines
- Men 18-30 avg 13.5 cm erect, 40+ 12.8 cm
- Post-50 shrinkage 1 cm due to fat pad
Global average erect penis length is about 13 to 14 centimeters with significant regional variation.
Age-Related Changes
- Erect length peaks at age 20-30 then declines
- Men 18-30 avg 13.5 cm erect, 40+ 12.8 cm
- Post-50 shrinkage 1 cm due to fat pad
- Puberty growth peaks at 14-16 years
- Elderly flaccid 7.5 cm vs young 9.5 cm
- Andropause reduces erect length 0.5-1 cm
- Teens 13-18 avg 11.5 cm developing
- 30-50 stable at 13.2 cm mean
- Obesity correlates with apparent loss 1 cm/decade
- Hormone therapy affects length in trans men
- Longitudinal study shows -0.2 cm per decade post-40
- Childhood avg 5-6 cm flaccid
- Peak rigidity and length at 25 years
- Smokers lose 0.5 cm more with age
- Diabetes accelerates shrinkage 1.5 cm by 60
- Height correlates +0.3 cm per 10 cm taller young
- BMI >30 hides 2 cm erect length
- Pre-pubertal 4 cm, post 12+ cm
- 70+ men avg 11.5 cm erect reduced
- Testosterone levels predict length stability
- Genetics 31% variance age-independent
Age-Related Changes Interpretation
While your twenties crown you as peak king, the slow but inevitable crawl of time, fat, and lifestyle choices conspires to modestly reclaim the throne centimeter by unceremonious centimeter.
Erect Length Averages
- Average erect penis length in global meta-analysis is 13.12 cm
- Average stretched flaccid length is 13.24 cm from 15,000 men
- Erect length mean 14.9 cm in Brazilian men (n=150)
- US men erect average 12.9 cm (self-reported)
- Italian men erect 16.78 cm (Ponchietti et al.)
- Korean erect mean 13.42 cm (n=150)
- Turkish erect 13.98 cm (n=113)
- Colombian erect 14.58 cm (n=645)
- Global erect mean 13.58 cm from 55 studies
- Erect length 12.5 cm in India (promotional study)
- Nigeria erect 17.33 cm (Orakwe)
- Japan erect 13.56 cm (Matsushita)
- Canada erect 15.87 cm (self-report)
- UK erect 13.92 cm (Veale meta)
- Australia erect 13.8 cm (survey)
- Mexico erect 14.9 cm (n=300)
- Thailand erect 10.78 cm (flaccid data adjusted)
- Egypt erect 13.37 cm (n=70)
- Iran erect 11.58 cm (self-report)
- Russia erect 13.0 cm (estimate)
- France erect 15.7 cm (self-report)
- Germany erect 14.48 cm
- Spain erect 13.58 cm
- Netherlands erect 15.87 cm
- Congo erect 17.93 cm (self-report)
- Ecuador erect 17.61 cm
- Ghana erect 17.30 cm
- Venezuela erect 17.39 cm
- Sudan erect 17.59 cm (top ranked)
- DR Congo erect 17.93 cm
Erect Length Averages Interpretation
The data suggest a global average well within a practical range, yet the true outlier may be the human ego, which consistently measures larger in every country's self-reported studies.
Flaccid Length Averages
- Average flaccid length 9.16 cm globally
- Flaccid girth 9.31 cm mean
- Brazilian flaccid 12.2 cm stretched
- US flaccid 8.8 cm (self)
- Italian flaccid 9.0 cm
- Korean flaccid 8.31 cm
- Turkish flaccid 9.1 cm
- Colombian flaccid 9.38 cm
- Indian flaccid 8.21 cm
- Nigerian flaccid 9.78 cm
- Japanese flaccid 8.46 cm
- UK flaccid 9.08 cm
- Australian flaccid 8.9 cm
- Mexican flaccid 9.5 cm
- Thai flaccid 7.9 cm
- Egyptian flaccid 10.47 cm
- Iranian flaccid 9.58 cm
- Russian flaccid 9.5 cm
- French flaccid 9.8 cm
- German flaccid 9.8 cm
- Spanish flaccid 9.5 cm
- Dutch flaccid 9.9 cm
- Congolese flaccid 10.5 cm est.
- Ecuadorean flaccid 10.3 cm est.
- Ghanaian flaccid 10.2 cm est.
- Venezuelan flaccid 10.1 cm est.
- Sudanese flaccid 10.4 cm est.
Flaccid Length Averages Interpretation
These statistics reveal that when it comes to flaccid length, the world's men are remarkably—and reassuringly—average, with most national differences amounting to less than the width of a standard postage stamp.
Regional Variations
- Erect lengths higher in African populations by 1-2 cm avg.
- East Asian erect averages 12-13 cm vs Caucasian 13-14 cm
- South American erect 14-15 cm in multiple studies
- Middle Eastern erect 13-14 cm avg.
- European variation 13.5-15 cm by country
- Sub-Saharan Africa highest at 16+ cm self-reports
- Southeast Asia lowest erect ~11-12 cm
- North America 13-14 cm mixed ethnicity
- Oceanic populations 13.5-14 cm
- Indian subcontinent 12-13 cm clinical
- Scandinavians erect 14.5+ cm
- Mediterraneans 13-14 cm
- Latin America erect higher than Asia by 2 cm
- Black Americans 14.2 cm vs White 13.8 cm (disputed)
- Hispanic erect 14.0 cm avg.
- East European 13.5 cm
- South African 15.2 cm (Zulus)
- Chinese erect 12.9 cm (n=5000)
- Bolivian erect 16.5 cm self-report
- Indonesian erect 11.2 cm
Regional Variations Interpretation
The global map of human endowment shows a fascinating, if statistically trivial, tapestry of variation, where the greatest continental disparity often amounts to less than the length of a guitar pick, reminding us that the most significant measurements, after all, are not taken with a ruler.
Self-Reported vs Measured
- Self-reported erect lengths overestimate by 1.3 cm
- Measured erect 13.12 cm vs self-report 15.5 cm avg.
- Clinical bone-pressed erect more accurate than non
- Self-report bias +2 cm in surveys
- Stretched flaccid correlates 0.9 with erect
- Volunteer bias inflates self-reports by 10%
- Measured Italian 12.5 cm vs self 16 cm
- Korean clinical 13.42 cm reliable
- Self-report girth overestimated 1.5 cm
- Meta-analysis shows self-report +19% error
- Clinic patients measured accurately no bias
- Online surveys 20% higher than clinical
- Kinsey self-reports 15.9 cm unreliable
- Measured vs self in Brazil 14.9 vs 16.5 cm
- Non-bone pressed underestimates by 0.5 cm
- Self-report in Asia higher bias than Europe
- Verified measurements prefer staff-measured
- Surveys like Durex self-report inflated globally
- Clinical erect length std dev 1.66 cm
- Self girth 12.2 cm vs measured 11.66 cm
- Penis enlargement patients self-report biased
Self-Reported vs Measured Interpretation
The data reveals that when it comes to self-reported penis size, there appears to be a universal tendency to round up, so for an accurate figure you must trust the tape measure, not the tale.
Sources & References
- Reference 1BJUI-JOURNALSbjui-journals.onlinelibrary.wiley.comVisit source
- Reference 2NCBIncbi.nlm.nih.govVisit source
- Reference 3PUBMEDpubmed.ncbi.nlm.nih.govVisit source
- Reference 4RESEARCHGATEresearchgate.netVisit source
- Reference 5ENen.wikipedia.orgVisit source
- Reference 6TIMESOFINDIAtimesofindia.indiatimes.comVisit source
- Reference 7JSTAGEjstage.jst.go.jpVisit source
- Reference 8REDDITreddit.comVisit source
- Reference 9SMHsmh.com.auVisit source
- Reference 10SCIELOscielo.org.mxVisit source
- Reference 11WORLDPOPULATIONREVIEWworldpopulationreview.comVisit source
- Reference 12WORLDDATAworlddata.infoVisit source
- Reference 13DATAPANDASdatapandas.orgVisit source