Short answer: most Air Jordans run true to size, and the line is unusually consistent, so once you know your Jordan size it tends to carry across the retros. The main thing to check is the model, because width varies. Based on 12,676 verified pairs across 64 Air Jordan models in the Feetlot database, the whole line sits smaller than the Nike Air Force 1 (which itself runs large), and the structured or patent-leather models fit snug, so wide feet often size up half a size.
What the Feetlot Data Says About Air Jordan Sizing
The headline from the Feetlot database is consistency. Across 12,676 verified pairs and 64 Air Jordan models, the line clusters in a tight band, more consistent than Nike overall. In plain terms, most Jordan retros fit similarly to one another, so the size that works in one pair is a reliable starting point for the next. That is the practical payoff: Jordan sizing is predictable in a way that many sneaker lines are not.
On central tendency, almost every Air Jordan sits smaller than the Nike Air Force 1, which is Feetlot's reference shoe and runs about half a size large. Because the AF1 runs big, a model that sits smaller than it lands closer to true to size. That is why the practical verdict for the Jordan line is true to size for most people, with the model choice mattering mostly for width rather than length.
The remaining variation inside the line comes down to last shape. The narrow, structured models pull snug, while a couple of models are noticeably roomier. The next section names them.
Which Air Jordan Shoes Run Big, and Which Run Small
The split here is really about narrowness, not length. The structured, patent-leather and narrow-lasted models fit snug and are the ones wide feet should consider sizing up half a size. The roomier models can run true to size or even feel slightly generous.
Run snug (size up half if you have wide feet): The narrowest, most structured retros are the famously narrow Air Jordan 4, the patent-leather Air Jordan 11, and the rigid Air Jordan 3. In the same snug group sit the Air Jordan 9, the Air Jordan 10, the Air Jordan 14, and the Jordan Spizike, which is the smallest-running pair in this set. These are true to size on a regular to narrow foot, but the stiff uppers do not give much, so wide feet are the ones that benefit from going up half.
Run roomier (true to size, the comfortable end): The roomiest Jordan in the Feetlot data is the Air Jordan 6, followed closely by the Air Jordan 12. These two have the most forgiving fit in the line. Close behind them sit the Air Jordan 5, the Air Jordan 13, the Air Jordan 7, and the Air Jordan 1 Mid. If your foot is on the wider side, these are the easiest Jordans to fit, and most people take their normal size in them.
The flagship sits in the middle: The Air Jordan 1 is the anchor of the whole line and, with the largest sample in the database by far, it lands true to size for most people. It is structured rather than soft, so a genuinely wide foot can size up half, but the typical buyer takes their normal size. The Air Jordan 1 Low fits the same way. Use the Air Jordan 1 as your baseline: if it fits you true to size, the rest of the line will track close to that.
How to Find Your Air Jordan Size
Start from your true measured size. Measure both feet at the end of the day when they are largest, in socks you would actually wear, and size to the longer foot. For most people, that measured size is the right Air Jordan size.
Then adjust for width and model. If you have a regular or narrow foot, take your true size across nearly the entire line, including the snug models like the Air Jordan 4, 11 and 3. If you have a wide foot, take your true size in the roomier models like the Air Jordan 6 and 12, and consider going up half a size in the narrow, structured retros, where the stiff upper will not stretch to accommodate width.
For the lifestyle staples, the Air Jordan 1 and Air Jordan 1 Low are true to size for most, with the same half-size-up option only if your foot is genuinely wide. Because the line is consistent, the most reliable trick is to lock in your Air Jordan 1 size first, then keep it for the other retros and only nudge up half a size when a model is both narrow and you have wide feet.
Air Jordan vs Other Brands
Against the rest of Nike, Air Jordan runs smaller and truer. The Nike Air Force 1, the line's own reference point, runs about half a size large, so if you size down in the AF1 you will likely take your normal size in most Jordans. Compared with Nike's running models, Jordans feel a touch more generous in the toe box but more structured through the midfoot.
Against adidas, which many people find true to size or slightly long, Jordans are similar in length but more structured, so the width difference matters more than the length difference. Against New Balance, which is known for genuine wide options, Air Jordan offers far less width accommodation, which is exactly why wide feet lean on the half-size-up rule in the narrow models. The brand-level takeaway is that Air Jordan is one of the more predictable lines to size, both true to size on average and tightly clustered, so cross-shopping is easier once you know your Jordan number.
Air Jordan Size Chart (US / UK / EU)
| US Men | UK | EU | Foot length (cm) |
|---|---|---|---|
| 7 | 6 | 40 | 25.0 |
| 7.5 | 6.5 | 40.5 | 25.5 |
| 8 | 7 | 41 | 26.0 |
| 8.5 | 7.5 | 42 | 26.5 |
| 9 | 8 | 42.5 | 27.0 |
| 9.5 | 8.5 | 43 | 27.5 |
| 10 | 9 | 44 | 28.0 |
| 10.5 | 9.5 | 44.5 | 28.5 |
| 11 | 10 | 45 | 29.0 |
| 11.5 | 10.5 | 45.5 | 29.5 |
| 12 | 11 | 46 | 30.0 |
| 13 | 12 | 47.5 | 31.0 |
Air Jordan uses standard Nike sizing, so this chart applies across the retro line. Use foot length in centimeters as the source of truth and treat the US, UK and EU columns as conversions.
How Feetlot Measures This
Feetlot fits a global offset model to more than 100,000 verified owner-reported shoe records. Each shoe receives a single number that captures how it drifts in fit from the reference shoe, the Nike Air Force 1. Aggregating those numbers across every model in a brand reveals the brand's overall pattern, how tightly the models cluster, and which specific models break from the group. For Air Jordan, that aggregation across 12,676 pairs and 64 models is what shows the line is consistent and sits true to size, with width as the main model-level variable. To get a personal size in any specific model, sign in and add the shoes you already own. Feetlot will translate your real-world fits into a recommended size for any Jordan you are considering.
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