Nike

Nike

Leading global athletic apparel and footwear brand

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Nike Size Guide | Complete Sizing Chart

Nike Size Guide

About Nike Sizing

Nike is one of the world's leading athletic footwear and apparel brands, renowned for innovation, performance, and style. Nike serves athletes and casual wearers of all ages, from infants through to adults. The brand's sizing philosophy emphasises performance-focused fit, with shoes and clothing designed to support athletic movement whilst maintaining comfort during everyday wear.

Important Nike Sizing Information:

Nike shoes tend to run slightly smaller than competitors such as Adidas or Reebok, and customers often find they need to size up by half a size. Additionally, Nike's width measurements are often snugger, particularly for those with wider feet. The conversion between US men's and women's sizes differs from other brands — a men's US 10 equals approximately a women's US 11.5. Always measure your actual foot length and refer to the appropriate size chart for your gender and category.

How to Measure Your Foot Length

To find your correct Nike shoe size, measure your foot length using this method:

  1. Secure a piece of plain paper to a hard, flat surface using tape, ensuring it cannot slip during measurement.
  2. Stand on the paper with your feet shoulder-width apart, distributing your weight evenly. You may measure one foot at a time.
  3. Ask a friend or family member to mark the paper at two points: the tip of your big toe and the outermost part of your heel, using a pen or pencil held perpendicular to the paper.
  4. Step off the paper carefully and use a ruler or tape measure to measure the straight-line distance between the two marks.
  5. Repeat the process with your other foot, as it is common for feet to differ slightly in length.
  6. Use the longer of your two measurements to determine your size using the size chart below.
  7. If your measurement falls between two sizes, we recommend sizing up for comfort and room during athletic activity.

Men's Footwear Size Chart

Nike men's shoe sizes span from UK 3 through to UK 21, with corresponding conversions across US, European, and centimetre measurements. Use your measured foot length in centimetres to find the most accurate size.

US Men's UK EU Foot Length (cm) Foot Length (inches)
3.5 3 35.5 21.6 8 1/2
4 3.5 36 22.1 8 11/16
4.5 4 36.5 22.4 8 13/16
5 4.5 37.5 22.9 9
5.5 5 38 23.4 9 3/16
6 5.5 38.5 23.8 9 5/16
6.5 6 39 24.1 9 1/2
7 6 40 24.5 9 11/16
7.5 6.5 40.5 24.9 9 13/16
8 7 41 25.4 10
8.5 7.5 42 25.8 10 3/16
9 8 42.5 26.2 10 5/16
9.5 8.5 43 26.7 10 1/2
10 9 44 27.1 10 11/16
10.5 9.5 44.5 27.5 10 13/16
11 10 45 27.9 11
11.5 10.5 45.5 28.3 11 3/16
12 11 46 28.8 11 3/8
12.5 11.5 47 29.2 11 1/2
13 12 47.5 29.6 11 5/8
13.5 12.5 48 30 11 3/4
14 13 48.5 30.5 12
14.5 13.5 49 30.9 12 3/16
15 14 49.5 31.3 12 3/8
15.5 14.5 50 31.8 12 1/2
16 15 50.5 32.2 12 5/8
16.5 15.5 51 32.6 12 3/4
17 16 51.5 33 13
17.5 16.5 52 33.5 13 3/16
18 17 52.5 33.9 13 3/8
18.5 17.5 53 34.3 13 1/2
19 18 53.5 34.8 13 11/16
19.5 18.5 54 35.2 13 7/8
20 19 54.5 35.6 14
20.5 19.5 55 36.1 14 3/16
21 20 55.5 36.5 14 3/8
21.5 20.5 56 36.9 14 1/2
22 21 56.5 37.3 14 11/16

Women's Footwear Size Chart

Nike women's shoe sizes run slightly smaller than men's sizes at equivalent length measurements. A women's US 8 is approximately 24.5 cm in foot length. Note that Nike's conversion between women's and men's sizes differs from other brands — always measure your foot length for the most accurate size.

US Women's UK EU Foot Length (cm) Foot Length (inches)
5 2.5 35.5 22 8 5/8
5.5 3 36 22.4 8 7/8
6 3.5 36.5 22.9 9
6.5 4 37.5 23.3 9 1/8
7 4.5 38 23.7 9 3/8
7.5 5 38.5 24.1 9 1/2
8 5.5 39 24.5 9 5/8
8.5 6 40 25 9 7/8
9 6.5 40.5 25.4 10
9.5 7 41 25.8 10 1/8
10 7.5 42 26.2 10 3/8
10.5 8 42.5 26.7 10 1/2
11 8.5 43 27.1 10 5/8
11.5 9 44 27.5 10 7/8
12 9.5 44.5 27.9 11
12.5 10 45 28.3 11 1/8
13 10.5 45.5 28.8 11 3/8
13.5 11 46 29.2 11 1/2
14 11.5 46.5 29.6 11 5/8
14.5 12 47 30 11 3/4
15 12.5 47.5 30.5 12
15.5 13 48 30.9 12 3/16
16 13.5 48.5 31.3 12 3/8
16.5 14 49 31.8 12 1/2
17 14.5 49.5 32.2 12 5/8
17.5 15 50 32.6 12 3/4
18 15.5 50.5 33 13
18.5 16 51 33.5 13 3/16
19 16.5 51.5 33.9 13 3/8
19.5 17 52 34.3 13 1/2
20 17.5 52.5 34.8 13 11/16
20.5 18 53 35.2 13 7/8
21 18.5 53.5 35.6 14
21.5 19 54 36.1 14 3/16
22 19.5 54.5 36.5 14 3/8
22.5 20 55 36.9 14 1/2
23 20.5 55.5 37.3 14 11/16
23.5 21 56 37.8 14 7/8

Children's Footwear Size Chart (Infant, Toddler & Child)

Nike children's shoes are sized using the 'C' designation (Child), with sizes ranging from infant 0C through to older children sizes. Measure your child's foot length carefully, as children's feet grow rapidly.

Sizing Information

General Fit

Nike sizing tends to follow standard UK sizing. However, we recommend checking the specific size chart for each item.

Fit Recommendations

  • Check product-specific size charts when available
  • Read customer reviews for fit feedback
  • Consider the item type (slim fit, regular fit, etc.)
  • When in doubt, contact customer service

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Important: This page provides essential and expertly curated size conversion information that should be used in conjunction with the complete interactive tools available at sizechart.uk. For the most accurate size conversions and access to our comprehensive database of brand-specific charts, measurement guides, and real-time conversion tools, please visit the full website. The information presented here represents only a portion of our complete sizing resources and should be evaluated within the context of your specific sizing needs and the brands you're shopping for. It is impossible to determine the anatomical size of a shoe or clothing item without the use of a measuring tape or ruler in conjunction with the size chart.

US Size UK Size EU Size Foot Length (cm) Foot Length (inches)
0C 0 15 7.6 3
1C 0.5 16 8.5 3 3/8
2C 1.5 17 9.3 3 5/8
2.5C 2 18 9.7 3 7/8
3C 2.5 18.5 10.2 4
3.5C 3 19 10.6 4 1/8
4C 3.5 19.5 11 4 3/8
4.5C 4 20 11.4 4 1/2
5C 4.5 21 11.8 4 5/8
5.5C 5 21.5 12.3 4 7/8
6C 5.5 22 12.7 5
6.5C 6 22.5 13.1 5 1/8
7C 6.5 23.5 13.5 5 3/8
7.5C 7 24