5′4″ vs 5′10″ Height Difference

64 inches and 70 inches

Five feet four inches is 64 inches and five feet ten is 70. With the inch fixed at exactly 25.4 mm, as NIST records from the 1959 international yard agreement, those are 162.56 cm and 177.80 cm. The gap is 6 inches, or 15.24 cm.

The 5′4″ in cm and 5′10″ in cm pages give more detail on each height.

Thinking in ratios instead of inches

Researchers who study couples and populations rarely talk about height differences in inches. They use a ratio called sexual dimorphism in stature, or SDS: the man's height divided by the woman's. The ratio has an advantage over raw differences. A 6-inch gap means something different between people who are 4′10″ and 5′4″ than between people who are 6′0″ and 6′6″, but a ratio puts every pair on a common scale.

For 5′4″ and 5′10″, SDS is 70 ÷ 64 = 1.094. The shorter person stands at about 91.4% of the taller person's height. Studies of preferences typically show participants drawings of couples at several ratios. A 2015 study of the Hadza of Tanzania and the Tsimane' of Bolivia, for example, used six silhouette pairs ranging from 0.96, where the woman is slightly taller, to 1.19, where the man is nearly a fifth taller. A ratio of 1.094 falls in the middle of that kind of scale. This page looks at where it lands among national populations, among people's stated ideals, and in real couples.

The ratio across the world

Our World in Data, presenting the NCD Risk Factor Collaboration's estimates for people born in 1996, gives global averages of about 171 cm for men and 159 cm for women, a ratio of roughly 1.07: men are about 7% taller on average. The NCD-RisC study behind those figures pooled 1,472 population-based studies with measured heights of more than 18.6 million people in 200 countries, and found men taller than women in every one of them.

The ratio varies by country, though not by much. Among the 99 countries profiled on this site, the 1996-cohort averages give the following extremes:

The 5′4″ and 5′10″ pair, at 1.094, matches the average man and woman of Guatemala almost exactly in proportion, even though Guatemalan averages are about 13 cm shorter on both sides. It sits near the very top of the national range, alongside Croatia, Israel, Argentina and Belgium. In proportional terms, this is about as dimorphic as the average couple in any country on the list gets.

Dimorphism does not grow with height

It might seem that taller populations should show bigger ratios, but research suggests otherwise. Anders Gustafsson and Patrik Lindenfors analyzed mean stature in 124 human populations for a 2004 paper in the Journal of Human Evolution. Using both standard and phylogenetic methods, they found no allometric relationship between male and female stature, and no support for the idea that sexual dimorphism increases with overall height. The table above illustrates the point: Guatemala and Belgium have almost identical ratios despite an 18 cm difference in average male height.

NCD-RisC reported a related finding over time. For people born in 1896, the absolute male-female gap was about 11 cm and slightly larger in low-height countries, which the authors suggested might reflect a relative advantage for men in undernourished populations. By the 1996 cohort the gap had grown to about 12 cm and was similar across the height range. Our World in Data highlights the variation hidden inside those averages: in South Korea the gap fell from 18 cm to 13 cm over the century, while in the Philippines it doubled from 7 cm to 14 cm.

The ratio people say they want

If national averages hover around 1.07 to 1.09, what do people say they prefer? In a 2025 study in Human Nature, Alexandra Dial and Gillian Brown asked 242 heterosexual UK adults about their ideal partner height. Expressed as a ratio of man to woman, women's mean ideal was 1.10 and men's 1.06. Both were significantly greater than 1, and women's was larger than men's.

That makes 5′4″ and 5′10″ almost a textbook match for the women's ideal. The pair's 1.094 differs from 1.10 by less than one percentage point, which works out to about 1 cm of height. Men's ideal of 1.06 would correspond to a 5′10″ man with a partner of about 5′6″, or a 5′4″ woman with a partner of about 5′8″.

The same study cites earlier work by Salska and colleagues (2008) that reported ideal ratios of about 1.10 for women and 1.05 for men. The consistency across samples years apart is notable: in the UK and US data available, women's stated ideal keeps landing near a ratio of 1.10, and this pair sits right on it.

Why your own height moves your ideal ratio

Bogusław Pawłowski argued in a 2003 paper in Proceedings of the Royal Society B that people adjust their preferred ratio according to their own height. A tall woman who insisted on a 1.10 ratio would be limited to a small pool of very tall men, while a short man who insisted on the same would have only very short women to choose from. By shifting preferences with their own stature, Pawłowski proposed, people widen their pool of potential partners, which produces what he called nonlinear assortative mating. For a 5′4″ woman and a 5′10″ man, both close to their national averages, that adjustment is minor, which is another reason the pair lines up so closely with the population's stated ideal.

A heel changes whose ideal the pair matches

Because the ratio is so close to the women's stated ideal, small changes in footwear move it into different territory. Standard ballroom shoes for women typically carry a 2 to 2.5-inch heel. In a 2-inch heel, a 5′4″ woman stands at 66 inches, and the ratio to a barefoot 5′10″ man becomes 70 ÷ 66 ≈ 1.061, essentially the men's mean ideal of 1.06 in the Dial and Brown survey. Flat shoes put the pair at the women's ideal; a modest heel puts it at the men's.

In daily life the taller partner's shoes add some height back, so the effective ratio usually sits between those rows.

A cross-cultural yardstick

A 2022 study in Frontiers in Psychology by Katarzyna Pisanski and colleagues gives another way to judge the pair. Surveying 536 people in Canada, Cuba, Norway and the United States, the team found that women on average preferred men about 2.3 cm taller than the average man in their country, and men preferred women about 2.5 cm shorter than the average woman. Applied to the US averages for people born in 1996, 177.1 cm and 163.5 cm, those preferences imply a man of about 179.4 cm and a woman of about 161.0 cm, a ratio of roughly 1.11. The 5′4″ and 5′10″ pair, at 1.094, is slightly less dimorphic than that preferred combination and slightly more dimorphic than the actual US average. Both sexes also preferred partners closer to their own height when they were shorter, and taller partners when they were taller, the same own-height effect Pawłowski described.

What real couples look like

Stated ideals and real pairings overlap but are not identical. In a 2013 PLOS ONE study, Gert Stulp and colleagues analyzed 12,502 couples in the UK Millennium Cohort Study. The mothers averaged 163.75 cm and the fathers 177.86 cm, a ratio of about 1.086. The mean height difference was 14.11 cm with a standard deviation of 9.25 cm.

The 5′4″ and 5′10″ pair looks very much like those average parents. The woman is about 1.2 cm shorter than the average mother, the man essentially identical to the average father, and the 15.24 cm gap is barely more than a centimeter above the mean. The researchers found gaps of 5 to 20 cm more common than random pairing would predict, so this pair sits in the most common part of the real-world distribution.

In the US, the most recent NHANES survey (August 2021 to August 2023) puts average heights at 63.5 inches for women and 68.9 inches for men aged 20 and over, a ratio of about 1.085. The site's percentile model places 5′4″ around the 57th percentile for women and 5′10″ around the 63rd for men. Both are a little above the middle, by similar amounts. That symmetry explains why this pair's gap is close to the national average gap, which NHANES gives as 13.9 cm (175.1 vs 161.2 cm).

Face to face

With average proportions, a 5′10″ person's eyes are at about 166 cm, the chin at about 155 cm and the shoulders near 145 cm. A 5′4″ head reaches 162.6 cm, around the taller person's mouth and a little below the eyes. The eye lines are about 14.3 cm apart, which at a normal conversation distance of about 76 cm works out to an upward gaze of around 11°.

Sizing and fit

A 5′4″ woman sits right at the reference point for mainstream US women's clothing. Misses sizing, described as the most common category, is designed for women of about average height, around 5′4″, while petite lines generally target women under that height. Older ASTM misses tables assumed heights from 5′3.5″ to 5′8″, and the 2011 revision of ASTM D5585 used a single reference of 5′5.5″. A 5′10″ man fits standard men's sizes. For shared spaces, a 6-inch gap means modest adjustments to car seats and mirrors but few daily frictions.

Famous people at 5′4″ and 5′10″

Celebrity heights are approximate. On this site, Billie Eilish is listed at about 162.6 cm and Millie Bobby Brown at 163 cm, both about 5′4″. Johnny Depp and Timothée Chalamet are listed at about 178 cm, essentially 5′10″.

Related comparisons

For the same 5′4″ partner with a 6′0″ partner, the gap grows to 8 inches in 5′4″ vs 6′0″. For another 6-inch pair at a smaller scale, see 5′1″ vs 5′7″. Any other combination can be compared with the height difference calculator.