Average wrist size for men and women, in cm and inches, and what it means for choosing a watch

The average wrist circumference in the US Army’s ANSUR II survey, reported as the 2012 Anthropometric Survey of US Army Personnel, was 17.6 cm (6.9 in) for its 4,082 men and 15.5 cm (6.1 in) for its 1,986 women. These are serving soldiers, measured between October 2010 and April 2012, so the figures are a proxy and not a measurement of UK adults, and we found no public UK dataset that would let us do better.

Every number on this page is our own calculation from the survey’s two public data files and its technical report, published by Penn State’s OPEN Design Lab (last checked 9 November 2026). The page is about choosing a watch, so it shows how common each wrist size was and where published sizing guides draw their lines. It does not say what a wrist should measure.

Disclosure: we are Vannin Watches, a Manx brand designed on the Isle of Man, and our Field Watch appears in one paragraph and one row of Table 4 below, as published numbers only.

The average wrist circumference was 175.9 mm for men and 154.8 mm for women, which is 6.93 in and 6.09 in, with standard deviations of 9.0 mm and 7.8 mm. The middle value, the median, was 176 mm for men and 154 mm for women. The survey report prints the same means (17.59 and 15.48 cm), and its percentile table matches ours to the nearest millimetre.

The survey recorded two groups, male and female, and they overlap a great deal. Between 160 and 170 mm (6.3 to 6.7 in) fall 24.6% of the men and 24.7% of the women, so wrists in that band are common to both groups, and knowing which group someone is in says little about a wrist of that size.

Penn State’s page for the data says the sample is not an approximation of the US civilian population, so these averages describe US soldiers, Active, Guard and Reserve, and not any country’s adults. Wrist circumference was taken on the right arm with a tape over the stylion landmark at the bottom of the forearm bone called the radius, and the public files record it in whole millimetres. That is a defined spot, not necessarily where you would measure for a watch, so your own tape reading is the number that counts.

A percentile says how much of a group measured that size or less: half of the men in the survey measured 176 mm (6.93 in) or less, and half of the women measured 154 mm (6.06 in) or less. Table 1 gives seven percentiles and the mean in millimetres, centimetres and inches.

To use the table, find your own tape reading in it. A wrist of 165 mm (6.5 in), for example, matches the 10th percentile for men and the 90th percentile for women, which means about one in ten of the men and about nine in ten of the women measured 165 mm or less.

The groups overlap in the table too. The 5th percentile for men (162 mm) is above the 75th percentile for women (160 mm), and the 95th percentile for women (168 mm) is below the 25th percentile for men (170 mm). Put another way, the 25th percentile is 170 mm for men and 150 mm for women, so about a quarter of each group measured that or less, and the 75th percentile is 182 mm and 160 mm.

No standard defines a small, average or large wrist for watches, so we do not draw one. What we can show is how common each size was in the survey group, and where published guides draw their own lines.

A method note, once: we count wrists in half-inch bands, converting each band edge at 25.4 mm to an inch and rounding to the nearest whole millimetre (152, 165, 178, 190 and 203 mm), and a wrist exactly on an edge counts in the higher band.

In this survey group, 34.1% of the women and 0.2% of the men measured under 6.0 in (152 mm), and 9.6% of the men and 88.7% of the women measured under 6.5 in (165 mm). At the other end, 42.3% of the men and 0.6% of the women measured 7.0 in (178 mm) or more, and 6.7% of the men and none of the women measured 7.5 in (190 mm) or more.

Guides draw their lines in different places. Jewelers Mutual (a page dated March 2024) treats wrists under 6 inches as smaller and 7.5 inches or more as larger. Shinola gives case sizes for wrists of 6 to 7 inches and of 7.5 to 8 inches, and nothing for 7 to 7.5. Oracle of Time (October 2025) splits its lug-to-lug advice at under 6.5 inches, 6.5 to 7 and 7 and over. None of the three says where its numbers come from.

Laid against the survey, Jewelers Mutual’s two lines put 34.1% of the women and 0.2% of the men in its smaller group, and 0.0% of the women and 6.7% of the men in its larger group. Everyone else in the survey falls between the lines it draws.

We found no public UK dataset of wrist circumference, so this page uses a US one and says so. SizeUK, a national sizing survey of about 11,000 people whose results were made available in 2004, is sold under a data licence according to its own information document, which says buyers do not get individual raw data. We have not bought it, we do not know whether it records the wrist, and we do not quote it.

Pages that give a UK average without naming a UK source cannot be checked, and we have not used any such figure. Whether UK adults differ from this group, and by how much, we cannot say from these files.

We also have no source for average wrist size by height, so we give no figure for it. Guides key their advice on wrist circumference, which takes a minute to measure.

The average wrist for men (6.93 in) and the average wrist for women (6.09 in) fall in different bands of the published guides, and the guides do not always agree where they overlap. Table 3 joins each half-inch band to what four sources say, with the share of each survey group in that band.

None of these pages gives a source for its ranges: Shinola calls them general guidelines, Second Movement refers to widely accepted industry standards, and Oracle of Time calls its bands a rough guide. The table shows what is published, not what has been shown to fit.

The guides answer different questions: the first three give case diameter and the fourth gives lug-to-lug, so we do not average them. Where two cover the same band they can differ: for a 6 to 6.5 inch wrist, Second Movement says 34 to 38 mm and Shinola starts at 38 mm, and for 7 to 7.5 inches Second Movement says 42 to 45 mm while Shinola has no entry. On Second Movement’s bands, the median wrist for women (6.06 in) is in the 6 to 6.5 inch band and the median wrist for men (6.93 in) is in the 6.5 to 7 inch band.

In both of those bands the Second Movement and Shinola ranges include 38 mm; the 38 mm watch looks at that size on its own, and watch lugs explained covers why lug-to-lug can matter more than diameter. How sellers label sizes is covered on separate pages: unisex watches, men’s watch sizes and women’s watch sizes.

Using Shinola’s rule of thumb (a case 60 to 75% and a lug-to-lug 75 to 95% of the flat top of the wrist, taken as the circumference divided by three), both rules hold for the Field Watch’s published 38.0 mm case and 46.0 mm lug-to-lug on wrists of 152 to 184 mm (6.0 to 7.2 in), which is 83.7% of the men and 65.9% of the women in the survey group. The other 16.3% and 34.1% fall outside it: the men outside are almost all above 184 mm and the women outside are all below 152 mm. The Field Watch is coming soon. This is one seller’s rule of thumb, so measure your own wrist before you rely on it.

Wrap a soft tape (or a strip of paper or string that you then lay against a ruler) snug round your wrist where the watch will sit, and read the length in millimetres or inches. Our watch size guide has the full method, including the flat top of the wrist and lug-to-lug, and Table 2 and Table 3 show where your number falls.

About the author: Andrew Pickett is a founder of Vannin Watches, with Peter Jones. Vannin Watches Limited is registered on the Isle of Man, where its first watch, the Field Watch, was designed. Andrew compiled this guide from the published sources listed below; we have not tested any of the watches it mentions.