Average Size in United States
Based on compiled international research data, the average erect length in United States is 13.6 cm (5.35 in), with an average erect girth of 12.0 cm (4.72 in).
This measurement places United States statistically above the global average of 13.12 cm.
Average erect penis length
vs. global 13.12 cm
13.6 cm (5.35 in)
+0.5 cm vs. the global average. The United States mean sits at roughly the 61% percentile of the global distribution.
Length comparison
Average erect penis girth
vs. global 11.66 cm
12.0 cm (4.72 in)
+0.3 cm vs. the global average, roughly the 62% percentile of the global distribution.
Girth comparison
The underlying studies and compilations predominantly rely on the standardized bone-pressed measurement technique, a ruler pressed firmly to the pubic bone, which is the clinical standard used by the Veale et al. 2015 meta-analysis. See how we measure for the exact protocol.
About this data
Country-level figures are compiled from public aggregators (e.g. WorldData.info). Methodology and sample quality vary widely, self-reported surveys skew upward, and no per-country peer review exists. Treat this as an indicative estimate, not a clinical reference. Percentile comparisons against United States assume the global standard deviations as fallback.
Frequently asked questions about United States
What is the average penis size in United States?
The average erect penis size in United States is 13.6 cm (5.35 in) in length and 12.0 cm (4.72 in) in girth, according to compiled international data.
Is United States above or below the global average?
United States's average erect length of 13.6 cm is 0.5 cm above the global average of 13.12 cm reported by the Veale et al. 2015 meta-analysis.