Which countries have the smallest average penis size?
Executive summary
Multiple comparative datasets and media summaries identify nations in East and Southeast Asia—most consistently Thailand, Myanmar (Burma), the Philippines, Cambodia and several East Asian states—as reporting the smallest average erect penis lengths, but those rankings rest on uneven data, mixed measurement methods and frequent self-reporting that make firm conclusions tentative [1] [2] [3] [4].
1. The headline list: which nations appear at the bottom
Public rankings compiled in 2024–2026 repeatedly place Thailand at or near the absolute bottom of country-by-country lists, with DataPandas and several media summaries reporting Thailand’s average erect length around 9.43 cm (3.71 in) and labeling it the smallest in their datasets [1] [5]; neighboring countries—Myanmar (Burma), the Philippines and Cambodia—also show up in top-10 lists of the smallest averages across sources such as NowPatient, Men’s Health and visual summaries by Visual Capitalist [2] [4] [3].
2. Regional pattern: East and Southeast Asia dominate the “smallest” rankings
Most maps and compilations show a clear geographic pattern: the majority of countries with averages below roughly 11 cm are in East and Southeast Asia, a finding echoed by Visual Capitalist’s map and multiple ranking tables that group these countries together as reporting lower averages than global means [3] [6].
3. How small are “smallest” averages, and do they matter medically?
Even the lowest reported averages in these rankings fall within medically normal ranges; meta-analyses and reviews place the global mean erect length between about 12.9–13.9 cm (5.1–5.5 in), and many country lists register below that mean but not at pathological extremes—DataPandas reports a global mean near 13.12 cm and stresses that differences, while numerically notable, remain within normal variation [1] [7].
4. Why these rankings are fragile: methods, bias and sample size
A major caveat is methodological: many country rankings mix clinically measured studies with self-reported surveys, and self-measurement tends to inflate numbers while small national samples or convenience samples can skew results; multiple sources warn that combining heterogeneous studies produces an imperfect global table [7] [2] [8]. Academic reviews and health-focused sites emphasize inconsistent measurement technique, volunteer bias and uneven sample sizes as reasons to treat fine-grained national ordering with caution [9] [8].
5. The politics and commerce of ranking bodies
Some lists originate from media outlets or commercial websites that may prioritize clicks and sensational headlines—Daily Mail and niche sex-product blogs have amplified country rankings for engagement—so the presentation can overstate certainty [10] [6]. Conversely, data aggregators and mapmakers like Visual Capitalist and World Population Review attempt broader sourcing but still rely on the same heterogeneous studies, meaning editorial framing and site incentives influence how starkly “smallest” is portrayed [3] [7].
6. Bottom line and what can be said with confidence
With available reporting, the most consistent, replicable finding is that several East and Southeast Asian countries—most prominently Thailand, Myanmar, the Philippines and Cambodia—appear near the bottom of international penis-length rankings compiled in 2024–2026, while these reported averages still fall within medically normal ranges; however, because datasets combine self-reported and clinically measured values, and because sample sizes and methods vary widely, those country-level rankings should be viewed as suggestive rather than definitive [1] [2] [3] [8].