A blog post analyzing the “Three Six Mafia” dating rule—which requires men to earn six figures, stand six feet tall, and have six-inch genitalia—applies statistical modeling to determine how exclusionary these standards actually are.
According to the analysis, each criterion independently filters out a substantial portion of potential dating partners. Using U.S. Census data and published research on male height and anatomy, the author models the distribution of each trait among American men aged 20-30.
For height, the analysis notes that 6 feet or greater is attained by only 25% of men in that age range (the 75th percentile), based on a mean height of 70 inches with a standard deviation of 3 inches. The 6-inch penis threshold is even more exclusive. Using published data showing an average erect penis length of 5.166 inches with a standard deviation of 0.654 inches, a 6-inch length falls at approximately the 90th percentile.
For income, the author uses 2014 income distribution data, noting that income distributions are not normally distributed but become normalized when converted to natural logarithms. A $100,000 income corresponds to the 83rd percentile, creating an “Exclusivity Score” of 17%.
When combined, the odds multiply. Treating height and genital size as independent variables (though the author acknowledges they are likely somewhat correlated), the probability of meeting all three criteria simultaneously is approximately 0.425%—meaning fewer than one in 100 randomly selected men would qualify.
The author uses this baseline to explore potential trade-offs: whether exceptional income or anatomy could compensate for below-average height, or vice versa. The analysis reveals that each additional inch of genital length moves further from the population mean (1.53 standard deviations per inch) compared to height (0.333 standard deviations per inch), suggesting genital size may offer greater “conversion value” in offsetting other criteria.
The post frames this as an exercise in understanding the mathematical extremity of combining multiple high percentile requirements for dating eligibility, while noting the author himself married someone who did not meet all three standards.
Key facts
- Only 25% of American men aged 20-30 are 6 feet tall or taller
- A 6-inch penis length falls at approximately the 90th percentile
- A $100,000 income represents the 83rd percentile according to 2014 data
- Meeting all three criteria simultaneously occurs in roughly 0.425% of the male population
- Height and genital size appear correlated but were treated as independent in this analysis