How Do Nike And Adidas Compare In Sizing?

Last Updated on January 25, 2022 by

It might be pretty hard to find a shoe that fits properly, but measuring your feet to determine your size is an excellent place to start.

Shoes that don’t fit properly may be a significant inconvenience. Chafing, blisters, and calluses can make it difficult to move freely. However, getting the appropriate fit isn’t always straightforward—studies reveal that up to 72 percent of individuals wear the wrong size of shoe, leading to foot pain and problems.

Finding the exact shoe size and width is crucial if you avoid being stranded on a walk with footwear that rubs or pinches. You’ll scarcely know you’re wearing your shoes if they fit like a glove.

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

1. Measure your feet at night for more accurate measurement when they are at their largest.

2. Wear the same pair of socks you expect to wear with the shoes before measuring.

3. Tape a piece of paper to the floor to keep it from slipping.

4. 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.

5. 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.

6. Because your feet are likely to have somewhat different dimensions, repeat the process with the second foot.

7. 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.

8. To determine your foot width, mark the widest points of your forefoot and measure the distance between them.

9. 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.


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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