Does penis size matter? Credit: RapidEye/Getty

A survey of 1,387 women, conducted by sexual health site Bad Girls Bible, has shed light on exactly what women think about penis size—and the results might surprise you.

The survey found that more than two-thirds of women are unlikely to be fully satisfied with a partner whose erect penis is less than four inches.

But there’s a limit to how much is too much. Over half of the women said they found anything over nine inches too large, citing pain, rushed orgasms, and even “sexual selfishness” as common issues with well-endowed partners.

Pain was a recurring theme, with larger sizes causing vaginal bruising, tearing, and discomfort. On the flip side, those who enjoy bigger sizes mentioned “the feeling” as their primary reason for preference.

So, what’s the sweet spot? The researchers pinpointed the ideal range between six and eight inches, with 7.2 inches being deemed the best size.

Credit: Predrag Popovski / Getty

This range left 77% of women fully satisfied. Interestingly, nearly nine in 10 women preferred a seven-inch length, and two-thirds said both length and width were critical to sexual satisfaction. The average preferred girth was two inches, slightly above the national average of 1.8 inches.

For perspective, the width of a standard golf ball is 1.7 inches.

Size isn’t just a factor in physical pleasure—it can influence relationships, too.

The survey revealed that 44% of women consider a man’s size before deciding to date them. Additionally, two-thirds of women said they’d consider breaking up with a partner whose size didn’t meet their needs.

It’s not just small sizes that can cause issues. Nearly 60% of women said they’d break up with someone whose penis was too large, and four in 10 admitted they might cheat on a partner if his size was too small.

For casual hookups, size still plays a role. Just under half of the women said it matters for one-night stands, while over two-thirds said it’s important in a “friends with benefits” arrangement.

For men feeling the pressure to measure up, there’s some good news. Foreplay and a partner’s gentleness were named as key factors in women’s satisfaction, regardless of size. In other words, skill and attentiveness can make up for anatomical shortcomings.

The survey also highlighted that extremes at both ends of the spectrum are rare but impactful. Women were least satisfied with penises measuring between one and three inches, a condition known as micropenis, which affects just one in 10,000 men in the US. At the other end, over nine inches proved too much for more than half the respondents.

Interestingly, one in 200 women said even a one-inch penis was too big. Researchers noted this might reflect the views of homosexual women or those with conditions like vaginismus, where the vaginal muscles involuntarily tighten during penetration.

The findings highlight how penis size can affect more than just physical pleasure. For many women, size plays a role in emotional and physical compatibility, influencing everything from dating decisions to long-term relationship stability.

Ultimately, while size matters to some degree, the survey also shows that communication, effort, and emotional connection remain key components of a satisfying sex life.

So, whether you’re above average, below, or somewhere in the middle, remember that the best lovers prioritize their partner’s overall experience—inside and outside the bedroom.