How Do Nike And Adidas Compare In Sizing?

Last Updated on September 6, 2023 by Chase Reiner

Nike and Adidas sizing may differ slightly. For example, Nike shoes can run narrow, while Adidas often has a wider fit. To ensure the right fit, it’s recommended to check the brand-specific size charts and try shoes on if possible.

Nike Sizing Guides 

Nike Sizing Guides 

One of the numerous factors that make purchasing a running shoe intricate is shoe size.

We divide sizing into four categories: US, UK, EU, and CM. Depending on the brand, the EU size may be referred to as FR (French) and the CM size as JP.

Not all brands convert their sizes in the same way. Many US brands, such as Brooks, Saucony, and Nike, convert US sizes to UK sizes with a vast size difference (US 11 = UK 10), whereas Adidas, Hoka One One, and New Balance convert half-sizes. And here’s where things get complicated: Nike uses a half-size conversion from the US to the UK for smaller sizes like US 4, 5, 6, and 6.5.

All of this might make anyone’s head spin, so here’s a quick way to figure out what size shoes you wear. Measure the feet at the end of the day while wearing socks for precise results.

Only the CM (short for centimeter) represents the actual length of the foot that will fit in the shoe out of the four. Always use the CM or JP size as a guide when in doubt.

For example, if you know your non-Nike running shoe’s size, such as a Mizuno, look up the CM/JP size for that shoe. Of course, the heel-to-toe length isn’t the only consideration when it comes to fitting.

We determine the shoe’s fit by several factors, including the type of last (fit profile) utilized. However, it is a valid size reference because the CM or JP represents the actual length.

Nike Sizing Chart

Heel to toe measurement (inches)EU Men’sEU Women’sUK Men’sUK Women’sUS Men’sUSWomen’s

Sizing Differences Between Adidas And Nike

Sizing Differences Between Adidas And Nike

Nike sneakers are at least 0.1 inches smaller than Adidas shoes when it comes to size. In a variety of ways, this little distinction might affect your experience.

When you’re unsure about a brand’s size, buying shoes online might be challenging.

One of the most common questions among sneakerheads is how to tell the difference between Adidas and Nike size. We’re here to answer that question.

As a result, we’ve put together a step-by-step guide to assist you in comprehending the differences in size between Adidas and Nike sizing

Nike sneakers are half a size smaller than Adidas shoes, which run true to size.

Size Chart Comparison Between Nike And Adidas

Heel to toe measurement (inches)Nike US Men’sNike US Women’sAdidas US Men’sAdidas US Women’s

Bottom of Form

When looking for a Nike or Adidas sneaker, you can now utilize this information to nail your sizing. Simply select Adidas sneakers based on the brand’s specifications and not be concerned about sizing fluctuations.

Pay close attention to the Nike size chart while determining your fitting. You’ll be alright if you go up one size.

How To Measure Your Foot Size

  • Measure your feet at night for more accurate measurement when they are at their largest.
  • Wear the same pair of socks you expect to wear with the shoes before measuring.
  • Tape a piece of paper to the floor to keep it from slipping.
  • Place one foot on the paper and bend your knees slightly. Sitting in a chair is also an option, but make sure you firmly plant your feet on the ground.
  • Trace the outline of your feet on the paper with a pen or pencil pointed straight down. If feasible, enlist the assistance of a friend or family member.
  • Because your feet are likely to have somewhat different dimensions, repeat the process with the second foot.
  • To find the length measurement of your foot, mark the tip of the big toe and the outermost part of your heel, and measure the distance between them with a ruler or tape measure.
  • To determine your foot width, mark the widest points of your forefoot and measure the distance between them.
  • Because your feet may be different sizes, use the foot measurements of your larger foot when compared to a size chart.

Sizing For People With Wide Feet

Now that you’ve nailed the sizing, it’s time to concentrate on the fitting. This is the second most critical consideration when selecting the perfect pair of shoes.

Adidas sneakers run a little wider than your regular pair of shoes. The company prefers to provide the consumer with breathing room around the feet. As a result, these Adidas shoes are ideal for people who have naturally broad feet.

Nike, on the other hand, makes form-fitting footwear. The majority of its designs adhere to this criterion, making them unsuitable for those with broad feet. However, the business does develop unique lines of shoes for those with wider feet.

Nike’s Air Zoom and Nike Air Zoom Pegasus are excellent instances of this.

How To Determine If A New Shoe Fits

It’s critical to try on your new shoes right after taking them out of the box to ensure they fit correctly. Take a walk or jog in your new shoes, either on the treadmill or on the sidewalk. Nike offers a 60-day return policy (with some restrictions) for US customers, allowing you to try on your new shoes before deciding.

When you initially put your shoes on, ensure sure there is enough room in the toe box for you to wriggle and stretch. Then go for a walk in your shoes. Ensure your foot isn’t slipping in and out of the shoe and the ankle collar isn’t rubbing. Both of these symptoms indicate an ill-fitting shoe. It would help if you also walked or ran in your shoes for a more extended period to ensure that they have suitable cushioning and support. Pay attention to any pressure spots that may create long-term discomfort. Confirm that the width is appropriate.

Is Nike and Adidas Sizing the Same?

No, Nike and Adidas sizing are not always the same. While both brands follow industry-standard sizing conventions, there can be variations in the fit and feel of their products. Here are some key factors to consider:

  1. Foot Shape: Nike shoes are often known for having a snug and narrow fit, especially in the midfoot and heel areas. On the other hand, Adidas shoes are generally considered to have a slightly wider fit, which can be more accommodating for individuals with wider feet.
  2. Specific Models: Different Nike and Adidas shoe models may have varying fits. For example, a Nike Air Max shoe might fit differently from a Nike Flyknit model. Similarly, an Adidas Ultraboost may feel distinct from an Adidas Superstar.
  3. Size Charts: To find the most accurate fit, it’s essential to consult the brand-specific size charts provided by Nike and Adidas. These charts often include measurements in centimeters or inches, which can help you determine your correct size based on your foot length.
  4. Trying Them On: Whenever possible, it’s advisable to try on the shoes before purchasing. Everyone’s feet are unique, and personal comfort preferences vary, so physically trying on the shoes can help ensure the best fit.
  5. Customer Reviews: Reading customer reviews and feedback online can provide valuable insights into how specific Nike and Adidas models fit. Many customers share their experiences and whether they found a particular shoe to run true to size, small, or large.
  6. Return Policies: Be aware of the return policies of the retailer you purchase from. Some retailers may offer free returns or exchanges, allowing you to adjust your size if needed.

Nike vs. Adidas: Which Shoes Are Better For Wide Feet?

When it comes to choosing shoes for wide feet, comfort is key. However, two powerhouse sports brands, Nike and Adidas, often come into dispute over which offers the better shoe for individuals with wide feet. Here is a comparative listicle to illuminate the characteristics of each brand and help you make an informed decision.

1. Fit and Size:

In general, Adidas shoes usually run bigger than Nike’s. This translates into extra space for the sides of the feet, making them the preferred choice for wide footers. Adidas models like the Adidas Superstar, are known for their more generous cuts, especially in the width department.

2. Comfort:

Both Nike and Adidas have models specifically designed for maximum comfort. However, the Nike Air Monarch IV and Adidas Ultra Boost series are fan favorites when it comes to bicyclic designs. The Ultra Boost, however, has been lauded for the additional central foot and midsole elasticity, which increases overall comfort for wider feet.

BrandModelComfort Feature
NikeAir Monarch IVAir-cushioned midsole
AdidasUltra BoostStretchy midsole

3. Materials and Construction:

Nike tends to employ more flexible materials like mesh and Flyknit in their shoe construction, meaning their shoes can adapt to wider foot sizes. However, Adidas often uses soft, stretchable Primeknit material, which comfortably accommodates wider feet.

4. Performance:

In terms of athletic performance, Nike offers a snug fit ideal for speedy movements while running or playing sports. Meanwhile, Adidas’s broader frame offers stability and balance, making them more suitable for gym exercise or weightlifting.

5. Variety of Styles:

For fashion-forward customers, Adidas and Nike offer an array of styles. Wide-footed individuals may find a larger range of Adidas shoes designed with wider fits in mind, including popular models like the Yeezy Boosts and Stan Smiths.

6. Price:

Typically, Nike shoes can run a bit higher in price than Adidas, but this is not always the case. It depends on the model and collection.

In conclusion, while both Nike and Adidas manufacture excellent shoes for wide feet, Adidas might have an edge due to their generous cuts and ability to offer a wider shoe that doesn’t sacrifice style or performance. As always, preference and comfort are highly subjective, so it’s recommended to try on various styles and sizes from both brands before making a decision.


Despite being forerunners in world-class footwear, the size variations between Adidas and Nike may be a genuine pain when purchasing online. When looking at the Nike and Adidas size charts, this is clear.

However, according to our study, Adidas shoes are true to size, so if you keep to the shoe size that corresponds to your foot’s measurement, you won’t have to worry about ill-fitting shoes.

Nike sneakers, on the other hand, run small. Choose a pair that is one size larger than your usual size to obtain the correct fit.


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