Adidas Shoe Size Chart: US, UK, EU & CM Conversion Guide

If you are buying Adidas shoes online and are unsure whether to choose a US, UK or EU size, the best place to start is your heel-to-toe foot measurement. Adidas men’s footwear sizing connects US and UK sizes with EU sizes and specific foot-length measurements in centimeters and inches.

For example, an Adidas men’s US 9 corresponds to UK 8.5, EU 42 2/3 and a 26.3 cm heel-to-toe measurement on Adidas’ current size chart. A US 10 corresponds to UK 9.5, EU 44 and 27.1 cm.

The most reliable approach is simple: measure both feet, compare your longer foot with the Adidas chart, and then consider the way you want the shoe to fit. If you are between sizes, Adidas recommends going down for a tighter fit or up for a looser fit.

Adidas Shoe Size Chart at a Glance

The table below follows Adidas’ current men’s footwear sizing information. The heel-to-toe measurement is particularly useful when ordering online because it gives you a physical measurement to compare against your foot.

Important: Adidas’ chart uses specific EU increments such as 42 2/3, 43 1/3 and 44 2/3. Do not automatically round these to the nearest whole EU size when shopping.

How to Convert Adidas Shoe Sizes

Adidas size conversion is easiest when you use the same size system shown on the product page.

A US men’s Adidas size does not use the same number as its UK or EU equivalent. For example:

These conversions are based on Adidas’ men’s footwear chart.

Why is the CM measurement useful?

The centimeter measurement gives you a physical reference rather than relying entirely on a regional size number.

This matters because a US 9 from one footwear brand may not feel identical to a US 9 from another brand. Even when two shoes use the same nominal size, their shape, upper construction, toe box and intended use can change how they feel.

That is why we recommend measuring your feet before purchasing an expensive pair online.

Adidas Shoe Size Converter

If you already know your Adidas US men’s size, use this quick converter to see the corresponding UK, EU and centimeter measurements.

Tool note: This converter is a quick reference based on the Adidas men’s chart. It should not replace checking the size guide associated with the specific product you are buying.

Is Adidas True to Size?

Adidas generally describes its footwear sizing as following standard sizing, so your normal size can be a useful starting point. However, “true to size” does not mean every Adidas shoe will feel identical.

Different Adidas models can have different constructions and intended uses. A running shoe, lifestyle sneaker, football shoe and performance shoe can create different sensations even when the labeled size is identical.

Your foot shape matters too.

A person with a narrow foot may experience a shoe differently from someone with a wider forefoot. The amount of space you prefer also matters. Some people like a close performance fit, while others prefer more room for everyday walking.

The best approach is therefore:

Normal Adidas size + actual foot measurement + shoe-specific fit + personal preference.

If your current Adidas shoes fit comfortably and you are buying the same model in the same size, that previous fit is useful evidence.

If you are buying a different Adidas model, measure again.

How to Measure Your Feet for Adidas Shoes

Adidas recommends measuring from the tip of the big toe to the outermost part of the heel, and recommends measuring at the end of the day for the best fit.

You can do this at home with a piece of paper, a pencil and a ruler.

What you need

• A blank sheet of paper
• A pencil or pen
• A ruler or measuring tape
• The socks you expect to wear with the shoes
• A flat wall or solid vertical surface

Measure your foot

Place the paper on a hard, flat floor with one edge against a wall.

Stand on the paper with your heel gently against the wall.

Keep your weight naturally distributed across the foot. Do not curl your toes.

Mark the end of your longest toe.

Measure from the edge of the paper at your heel to the toe mark.

Record the measurement in centimeters.

Repeat the process for your other foot.

Use the measurement of your longer foot when comparing with the Adidas chart.

Should You Measure Your Foot in Inches or Centimeters?

Centimeters are often easier for online shoe shopping because they provide a straightforward physical measurement.

Adidas provides both inch and centimeter heel-to-toe measurements in its men’s size chart.

For example:

Use the complete Adidas chart rather than trying to create your own formula from one size to another.

What If Your Feet Are Between Adidas Sizes?

Adidas specifically provides guidance for shoppers who fall between sizes. For a tighter fit, Adidas says to go one size down. For a looser fit, go one size up.

But there is an important practical point here.

Do not automatically size up simply because you are buying a shoe online.

If your foot measurement sits close to a size boundary, consider:

• How you normally like your shoes to fit
• Whether you will wear thick or thin socks
• Whether the shoe is for running or casual use
• Whether you prefer a snug or relaxed fit
• Whether the particular model has a noticeably different shape

A slightly different fit preference can make the same size feel very different.

How Much Room Should You Have in an Adidas Shoe?

Your toes should not be pressed against the front of the shoe when standing.

At the same time, your foot should not slide significantly forward and backward while walking.

A useful fit check is to stand naturally and make sure your longest toe has comfortable space in front of it. Your heel should remain reasonably secure without painful pressure.

Remember that “more room” is not automatically “better fit.”

Excess space can allow your foot to move inside the shoe, which may create rubbing, instability or discomfort.

A shoe should feel secure without feeling restrictive.

How Should Adidas Shoes Fit?

A properly fitting Adidas shoe should feel secure through the heel and midfoot while allowing your toes enough room to move naturally.

Check these areas before deciding whether the size is right.

Heel: Your heel should stay reasonably secure while walking.

Midfoot: The shoe should hold your foot without creating painful pressure.

Toe box: Your toes should not feel compressed or pushed against the front.

Width: Your foot should not spill over the sides of the shoe’s platform.

Length: Your longest toe should have comfortable space in front of it.

Movement: Your foot should not slide excessively inside the shoe.

Signs Your Adidas Shoes Are Too Small

A shoe can look perfectly fine from the outside and still be too short or too narrow for your foot.

Watch for these signs:

• Your longest toe touches the front
• Toes feel compressed
• Your little toe feels squeezed
• The sides of your foot feel pressured
• You develop rubbing in the same location
• Your toes naturally curl inside the shoe
• You feel pressure after walking for several minutes
• The shoe feels comfortable only when you are sitting

If you notice these problems, do not assume the shoe simply needs to be “broken in.”

Leather and textile uppers may soften slightly, but a shoe that is fundamentally too short will not become longer through normal wear.

Signs Your Adidas Shoes Are Too Big

Oversizing is another common online-shopping mistake.

Signs include:

• Your heel lifts significantly while walking
• Your foot slides forward
• Your toes grip the floor to keep the shoe secure
• You need to tighten the laces excessively
• The shoe feels unstable
• You repeatedly get rubbing because your foot moves inside
• The shoe bends in an awkward position relative to your foot

If you need to aggressively tighten the laces to keep your foot in place, check whether the underlying size is too large.

Adidas Shoe Width and Foot Shape

Length is only part of fit.

Two people can have the same heel-to-toe measurement but very different foot shapes.

One person may have a narrow heel and slim forefoot. Another may have a wider forefoot with more volume across the top of the foot.

That is why you should assess how the shoe feels around your entire foot instead of looking only at the size printed on the box.

If the length seems correct but the sides feel uncomfortable, changing length may not solve the problem. A different shoe shape may be a better answer.

Adidas Size Conversion: US to UK and EU

If you normally buy shoes using US sizes but the Adidas website or retailer displays UK or EU sizing, use the Adidas-specific conversion rather than a generic online converter.

Here are several common examples:

These are Adidas men’s footwear conversions, not a universal conversion rule for every footwear brand.

Adidas Running Shoes vs Casual Shoes

The right fit can depend on how you intend to use the shoe.

For everyday sneakers, comfort and natural movement are usually the main priorities.

For running shoes, you should pay closer attention to how your foot feels during movement. Your foot can move differently when walking compared with running, and your preferred fit may also differ.

For training shoes, consider how much lateral movement you perform.

For lifestyle sneakers, your comfort preference and everyday socks can have a bigger influence.

The label may say the same size, but your fitting decision should still consider the purpose of the shoe.

Should You Buy the Same Adidas Size Every Time?

Not necessarily.

If you are purchasing the exact same model that you already own and it fits well, buying the same size is a reasonable starting point.

But if you are moving from one Adidas model to another, do not assume that your previous experience guarantees an identical fit.

The safest approach for an unfamiliar shoe is:

Measure → check Adidas chart → consider intended use → check product-specific information → choose.

This takes only a few minutes and can save you from the inconvenience of returning an incorrectly sized pair.

What Is the Best Time to Measure Your Feet?

Adidas recommends measuring at the end of the day for the best fit.

This is practical because your feet can change slightly throughout the day.

For the most useful home measurement:

• Measure in the evening
• Stand naturally
• Measure both feet
• Wear your normal socks
• Keep your heel against a wall
• Record the longer foot

Do the measurement on a hard floor rather than a soft carpet.

Adidas Shoe Size Comparison Tool

If you frequently compare different sizing systems, Urban Style Footwear also has resources that can make the process easier.

For a broader men’s reference, see our men’s shoe size chart.

If you are comparing different regional sizing systems, our global shoe size converter can help you move between international size references.

For a broader conversion reference, you can also use our shoe size conversion chart and calculator.

Adidas Shoe Size vs Nike Shoe Size

If you are moving between Adidas and Nike, avoid assuming that the same labeled size will provide exactly the same fit.

The two brands publish their own sizing information, and shoe construction can influence how a size feels.

If you are comparing Adidas with Nike, use the actual foot measurement as your common reference point.

You can also check our Nike shoe size chart when comparing the two brands.

The goal is not to find a universal “magic size.” The goal is to find the size that corresponds most closely to your foot and the fit you want.

A Simple Adidas Online Shopping Checklist

Before clicking the purchase button, take a moment to check these points.

Common Adidas Sizing Mistakes

Choosing your size based only on another brand

A Nike US 9, Adidas US 9 and another brand’s US 9 may not create exactly the same fit.

Use your foot measurement as the common reference.

Ignoring the EU fraction

Adidas uses EU sizes such as 42 2/3 and 43 1/3. These are meaningful entries in the brand’s sizing system.

Measuring only one foot

Many people have slightly different foot lengths.

Always measure both and use the longer foot.

Measuring while sitting

Your foot behaves differently when you are sitting compared with standing.

Stand naturally when measuring.

Buying much larger for comfort

Extra room is not always extra comfort.

A shoe that is too large can allow unnecessary movement.

Measuring with the wrong socks

If you normally wear thicker athletic socks, measure while wearing them.

How to Get the Best Fit When Buying Adidas Shoes Online

Online shopping removes the opportunity to try the shoe before purchasing, so your preparation matters more.

Start with your foot measurement.

Next, identify the sizing system used by the retailer. Is it US Men’s, UK or EU?

Then compare your measurement with the Adidas chart.

If you already own the exact Adidas model and know your size works, that history is valuable.

If the shoe is completely new to you, pay attention to product information and reviews that discuss fit, but treat individual reviews as personal experiences rather than universal rules.

Finally, check the retailer’s return policy before ordering.

That combination gives you a much stronger chance of getting the right size on your first order.

Frequently Asked Questions

What is the Adidas men’s shoe size chart?

The Adidas men’s shoe size chart connects US men’s sizes with UK, EU and heel-to-toe measurements. For example, Adidas lists US 9 as UK 8.5, EU 42 2/3 and 26.3 cm. The chart also includes inch measurements, making it useful for shoppers who know their foot length rather than their usual shoe size.

Is Adidas true to size?

Adidas states that its shoe size chart follows standard sizing, so your normal size can be a useful starting point. However, true-to-size fit can still feel different between shoe models because construction, shape and intended use affect the way a shoe fits. Measuring your feet is the better approach when purchasing an unfamiliar Adidas model.

What is Adidas US 9 in UK size?

Adidas men’s US 9 corresponds to UK 8.5. Adidas lists the same size as EU 42 2/3 and a heel-to-toe measurement of 26.3 cm. If you are shopping internationally, use the Adidas-specific conversion instead of assuming that a generic US-to-UK formula will produce the exact Adidas size.

What is Adidas US 10 in EU size?

Adidas men’s US 10 corresponds to EU 44 and UK 9.5. The Adidas chart gives a heel-to-toe reference of 27.1 cm for this size. If your measured foot length is close to a size boundary, check the full chart and consider your preferred fit before ordering.

Should I size up in Adidas shoes?

Not automatically. Adidas recommends going one size down for a tighter fit or one size up for a looser fit when you are between sizes. Your decision should also consider the shoe model, your foot shape, socks and how much room you personally prefer.

How do I measure my feet for Adidas shoes?

Place your foot on paper with your heel against a wall, stand naturally and mark the end of your longest toe. Measure from the heel position to the toe mark. Repeat for both feet and use the longer measurement when comparing with the Adidas chart. Adidas recommends measuring at the end of the day for the best fit.

Is Adidas EU 42 the same as US 9?

No. In the Adidas men’s chart, US 9 corresponds to EU 42 2/3, while EU 42 corresponds to US 8.5. This is an important detail because Adidas uses fractional EU sizes. Always check the Adidas chart instead of assuming that whole-number EU sizes correspond directly to US sizes.

Should I use my longer foot when choosing Adidas shoes?

Yes. If one foot is slightly longer than the other, the longer foot should guide your size selection. Otherwise, the shorter foot may fit comfortably while the longer foot experiences pressure at the toes or front of the shoe.

Are Adidas shoes good for wide feet?

It depends on the particular model and your foot shape. Shoe width is not determined by length alone. If the length seems correct but the shoe feels tight across the forefoot, consider the construction and shape of the specific model rather than simply increasing the length.

How often should I measure my feet?

For adults, you do not need to measure your feet as frequently as a growing child, but it is useful to measure again when buying an unfamiliar brand or model. If your previous shoes suddenly feel different, rechecking your foot measurement can also help identify whether sizing or fit is the issue.

Does sock thickness affect Adidas shoe size?

Yes. Thick socks take up more internal space than thin socks. If you normally wear athletic or winter socks with a particular shoe, measure your feet while wearing the socks you expect to use. This provides a more realistic reference for your intended fit.

Can I use an Adidas shoe size from another model?

You can use it as a starting point, especially if the previous pair fits well. But when switching models, it is still wise to compare the new shoe’s sizing information with your foot measurement. Different constructions can make two shoes with the same labeled size feel different.

Conclusion

Finding the right Adidas shoe size does not need to be complicated.

Start with your actual foot length, not just the size printed on your favorite pair of shoes. Adidas provides US, UK, EU and centimeter references, making it possible to compare your measurement with a specific size rather than relying on guesswork.

If you are buying Adidas online for the first time, measure both feet, use the longer measurement, check the correct regional sizing system and consider how you want the shoe to fit.

And if you are between sizes, remember that Adidas provides specific guidance for choosing a tighter or looser fit.

A few minutes with a ruler can save you the hassle of ordering the wrong pair.

For a broader reference, continue with our men’s shoe size chart or use the global shoe size converter when comparing international sizes.