What is the global average penis size?

The global average erect penis length is approximately 13.1 cm (5.16 inches), based on a meta-analysis of over 15,000 men.

Does penis size vary by country?

Studies show modest regional variation, but methodological differences between studies make direct country comparisons unreliable.

Does height correlate with penis size?

Research shows no significant correlation between height, shoe size, or other body measurements and penis size.

Global Average Penis Size

Last updated: January 17, 2026

13.1 cm

The global average erect penis length is approximately 13.1 cm (5.16 inches). A 2015 meta-analysis of over 15,000 men found the average flaccid length is 9.16 cm and the average erect length is 13.12 cm. There is considerable individual variation, and size does not correlate with other body measurements.

Historical Trend

Source: BJU International

Why This Average Exists

This is one of the most frequently searched global averages. The data helps address widespread misconceptions and anxieties about body image, and is used in medical research for prosthetics, condom sizing, and urology.

Factors That Affect Global Average Penis Size

Genetics
Ethnicity (modest variation)
Measurement methodology
Hormonal factors
Age
Study self-selection bias

Frequently Asked Questions

Methodology & Data Sources

The data presented on this page is compiled from publicly available datasets published by international organizations including the World Bank, World Health Organization (WHO), International Labour Organization (ILO), United Nations, NASA, and national statistical agencies.

Global averages are calculated using population-weighted or arithmetic means depending on the metric. Country-level data reflects the most recent available figures, typically from 2023–2024. Where gaps exist, the latest available data point is used.

All figures are subject to revision as source organizations update their datasets. For the most authoritative data, we encourage consulting the original sources linked in the table above.