Shoe Size Conversion for Big Feet
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Big feet shoe size conversion means matching a European size such as 45 or 46 to its UK and US equivalents, and then adding roughly half a centimetre of toe room to check the fit. A EU 45 is about a UK 10.5 to 11 and a US 11.5 to 12, while a EU 46 is about a UK 11 to 11.5 and a US 12 to 12.5. This guide gives you the full top end of the chart, explains why half sizes exist, and shows what to do when you fall between two numbers.
Why big feet sizes cause so much confusion
Most size charts stop at EU 42 or UK 8, which is fine for average feet but useless for anyone above that range. Shoppers with large feet then face two problems at once. First, the conversion between EU, UK and US sizes is not a fixed formula, it shifts by a fraction at the top of the range. Second, many brands simply do not make large sizes, so the ones that do often run long or wide differently from the brands you are used to.
In Pakistan there is a third layer. Local shops often label shoes only in EU sizes, while online listings mix EU, UK and US labels with no clear system. A shoe tagged as size 45 in one store may be tagged as UK 10 in another, and both could fit the same foot. Understanding the conversion yourself is the only reliable way through this.
The conversion table for large sizes
Use the chart below for the top of the range. Measure your foot in centimetres first, then read across. The foot length column is the measured length of your foot from the back of the heel to the tip of the longest toe, not the shoe length.
| Foot length (cm) | EU size | UK size (men) | US size (men) |
|---|---|---|---|
| 27.5 | 43 | 9 | 9.5 |
| 28.1 | 44 | 9.5 to 10 | 10 to 10.5 |
| 28.7 | 45 | 10.5 to 11 | 11.5 to 12 |
| 29.4 | 46 | 11 to 11.5 | 12 to 12.5 |
| 30.0 | 47 | 12 | 13 |
| 30.7 | 48 | 12.5 to 13 | 13.5 to 14 |
| 31.3 | 49 | 13.5 | 14.5 |
| 32.0 | 50 | 14 | 15 |
Note the ranges in the UK and US columns. Above EU 44, brands stop agreeing with each other, and a single EU size can map to two different UK or US numbers depending on the maker. For the full chart including smaller sizes, see the Mova shoe size guide, which covers the whole range in one place.
Size 45 in UK sizing
Size 45 in UK sizing is usually a men's UK 10.5, and sometimes a UK 11. The difference comes from how the brand builds its last, the mould the shoe is formed around. British lasts tend to be measured in barleycorns, an old unit equal to a third of an inch, so UK sizes move in 0.33 inch steps. EU sizes move in roughly 0.67 cm steps. Because these steps do not divide evenly into each other, some EU sizes sit almost exactly on a UK number and others sit between two.
If you wear a EU 45 and you are buying a UK labelled shoe, start with UK 10.5. If the brand is known to run small, such as some formal leather makers, go up to UK 11. If you can only find whole sizes, UK 11 is the safer choice over UK 10, because a slightly long shoe is far easier to live with than a short one.
Size 46 in US sizing
Size 46 in US sizing is a men's US 12 to 12.5. US men's sizes run about one size above UK sizes, so a US 12 and a UK 11 are close to the same foot length. US women's sizes run a further 1.5 sizes above US men's, so a woman with feet at EU 46 would look at US women's 13.5 to 14, though very few brands make women's shoes that large and many women with big feet buy from men's ranges instead.
One warning for Pakistani shoppers buying from US listings: US sizing sometimes appears as "D" or "2E" next to the number. That letter is width, not length. D is standard width and 2E is wide. If you have big feet and find standard shoes tight across the ball of the foot, a 2E width in US 12 will often fit better than going up to US 13 in a D width.
Why half sizes exist and where the gaps fall
Half sizes exist because full sizes are too coarse a step for a good fit. A full size step is about 8.5 mm in length, which is a lot of movement inside a shoe. A half size splits that into roughly 4.3 mm, close to the difference between comfortable and tight.
The gaps do not fall evenly across systems though. EU sizes do not officially have half sizes above 42 in most brands, they jump in full steps. UK and US systems do have half sizes, but they do not line up with the EU steps. So when you convert EU 45 to UK, the honest answer is "somewhere between UK 10.5 and 11", because the EU step is wider than the UK step at that point. This is why the table above shows ranges rather than single numbers.
How to size when you are between two numbers
Measure first, guess second. Here is the process:
- Stand on a piece of paper against a wall, heel touching the wall.
- Mark the tip of your longest toe. For many people this is the second toe, not the big toe.
- Measure the distance in centimetres, in the evening, because feet swell during the day.
- Measure both feet. Most people have one foot slightly longer. Use the longer measurement.
- Add about 0.5 to 1 cm to that measurement to get your target shoe length. This is the toe room your foot needs to flex while walking.
- Match that number to the foot length column in the table above.
When you land between two sizes, the direction you go depends on the shoe type. For leather formal shoes, go up, because leather stretches in width but almost never in length. For soft casual shoes and sneakers, you can often stay at the closer size since the upper gives. For sandals and slippers, the toe room rule matters less, but the strap placement matters more, so check where the strap sits relative to your toes rather than the sole length alone. If you shop by style, the casual collection and the sneakers collection at Mova both list sizes clearly on each product page.
Common mistakes with big feet sizing
The most common mistake is buying a size that is too small on purpose, to make the shoe look less big. This does not work. A tight shoe still looks long, and now it also hurts. The second mistake is assuming your size is fixed forever. Foot length changes slightly with age, weight changes and pregnancy, so a measurement from three years ago may be off by a half size today.
The third mistake is trusting the label on the box without checking the system. A box that says only "11" could be UK, US men's or even a brand's internal scale. Always confirm which system the listing uses before ordering. If the listing is unclear, the Mova customer FAQs page explains how to confirm sizing before you place an order.
Where to buy
For sizes at the top of the range, browse the extra large size shoes at Mova, a dedicated collection of large sizes in one place, so you are not filtering through the whole catalogue to find your number.
Frequently asked questions
Is EU 45 the same as UK 10?
Close but not exact. EU 45 usually converts to UK 10.5, and in some brands to UK 11. If you are choosing between UK 10 and UK 11 and cannot try them on, take UK 11. A shoe that is half a size long is a minor issue, while a shoe that is half a size short will pinch at the toe and can damage the shoe's shape over time.
What is size 46 in US sizing?
EU 46 is a men's US 12 to 12.5. If the listing shows width letters, D means standard width and 2E means wide. For big feet that feel tight across the front, choosing a 2E width at US 12 is usually better than moving up to US 13 at D width, because going up in length does not add much width.
Should I buy my exact size or go one size up for big feet?
Buy the size that matches your measured foot length plus about 0.5 to 1 cm of toe room, not a blanket rule. Measure your foot in the evening when it is at its largest, measure both feet, and use the longer one. Going one size up across the board usually leaves you with a shoe that slips at the heel, which causes blisters.
Do shoe sizes change between brands even when the number is the same?
Yes. The number on the label reflects the last the brand uses, and lasts differ in width, toe box shape and volume, not just length. Two shoes both labelled EU 46 can fit differently. This is why reading the foot length in centimetres, where the listing gives it, is more reliable than the size number alone.
Where can I find size 45 and above shoes in Pakistan?
Large sizes are limited in physical shops, so most shoppers with big feet buy online. Check the size chart on each product page before ordering, confirm whether the listing uses EU, UK or US sizing, and measure your foot the same day you order so the measurement is current. Mova carries a dedicated large size range so you can filter by your number directly.
Sources and further reading
- NHS guidance on foot care and shoe fitting
- British Standards Institution footwear sizing standards
- International Organization for Standardization, ISO 9407 shoe size systems