Last Updated: July 11th, 2022

ON Running and Nike sizing are a lot similar to that I’ve observed in the other brands.

However, the number of sizes that are available in Nike is a lot more than that of ON Running.

We will cover all the differences and similarities between Nike and On Running sizes in the below sections…

This is only a sizing comparison post and I did not compare the other aspects of both the brands. If you want a more detailed comparison between Nike and On Running, you can read this article.

Let’s proceed…

Related: Saucony Vs Asics Sizing Chart: How Are They Different?

ON Running Vs Nike Sizing

On Running Vs Nike Sizing: Differences

1. For On Running the women’s sizes start from 22cm (8.66 in)/5(US)/3(UK)/36(EU). Whereas Women’s Nike starts from 21cm (8.27 in)/4(US)/1.5(UK)/34.5(EU)

2. For Nike men’s size starts from 22.5cm (8.86 in)/3.5(US)/3(UK)/35.5(EU). For On Running men’s size starts from 25cm (9.84 in)/7(US)/6.5(UK)/40(EU).

3. Most of the UK men’s sizes of On Running are equivalent to a Nike number by 0.5 steps. It is the same for women’s sizes as well.

4. For both the men’s and the women’s versions of the shoes, there are a lot more sizes available in Nike than in On Running for both the smaller versions and the bigger versions.

5. In Nike Men, some of the sizes are represented by two numbers like 4.5/5 or 5/5.5 in the US version. This is not there in On Running.

6. For the men’s version, there is a whole 1.0 step jump for the EU sizes of 45 to 47 in On Running. Such a step jump is not present in Nike. This can again be seen in ON Running for 48 and 49 EU sizes.

Related: Running Shoe Heel Drop Chart (Illustrated)

Nike Sizing Vs On Running Sizing: Similarities

  • Most of the sizes for both men’s and women’s version has an incremental step of 0.5 for all the regions.
  • For the US version, the numbers of Nike sizes and ON Running are the same.
  • For EU versions, most of the numbers of ON Running are the same as that of Nike sizes.

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Nike Size Vs On Running: Women’s Shoes (cm, inches)

cm (inches)

ON Running (US)

Nike (US)

ON Running (UK)

Nike (UK)

ON Running (EU)

Nike (EU)

21 cm

(8.27 in)

-

4

-

1.5

-

34.5

21.5 cm

(8.46 in)


-

4.5

-

2

-

35

22 cm

(8.66 in)

5

5

3

2.5

36

35.5

22.5 cm

(8.85 in)


5.5

5.5

3.5

3

36.5

36

23 cm

(9.05 in)

6

6

4

3.5

37

36.5

23.5 cm

(9.25 in)

6.5

6.7

4.5

4

37.5

37.5

24 cm

(9.45 in)

7

7

5

4.5

38

38

24.5 cm

(9.65 in)

7.5

7.5

5.5

5

38.5

38.5

25 cm

(9.85 in)

8

8

6

5.5

39

39

25.5 cm

(10.03 in)

8.5

8.5

6.5

6

40

40

26 cm

(10.24 in)

9

9

7

6.5

40.5

40.5

26.5 cm

(10.43 in)

9.5

9.5

7.5

7

41

41

27 cm

(10.63 in)

10

10

8

7.5

42

42

27.5 cm

(10.83 in)

10.5

10.5

8.5

8

42.5

42.5

28 cm

(11.03 in)

11

11

9

8.5

43

43

28.5 cm

(11.23 in)

-

11.5

-

9

-

44

29 cm

(11.03 in)

-

12

-

9.5

-

44.5

29.5 cm

(11.23 in)

-

12.5

-

10

-

45

30 cm

(12.03 in)

-

13

-

10.5

-

45.5

30.5 cm

(12.23 in)

-

13.5

-

11

-

46

31 cm

(12.43 in)

-

14

-

11.5

-

47

31.5 cm

(12.63 in)

-

14.5

-

12

-

47.5

32 cm

(12.83 in)

-

15

-

12.5

-

48

32.5 cm

(13.03 in)

-

15.5

-

13

-

48.5

33 cm

(13.23 in)

-

16

-

13.5

-

49

33.5 cm

(13.43 in)

-

16.5

-

14

-

50

34 cm

(13.63 in)

-

17

-

14.5

-

50.5

34.5 cm

(13.83 in)

-

17.5

-

15

-

51

35 cm

(14.03 in)

-

18

-

15.5

-

51.5

35.5 cm

(14.23 in)

-

18.5

-

16

-

52

36 cm

(14.43 in)

-

19

-

16.5

-

52.5

36.5 cm

(14.63 in)

-

19.5

-

17

-

53

37 cm

(14.83 in)

-

20

-

17.5

-

53.5

37.5 cm

(15.03 in)

-

20.5

-

18

-

54

38 cm

(15.23 in)

-

21

-

18.5

-

54.5

38.5 cm

(15.43 in)

-

21.5

-

19

-

55

39 cm

(15.63 in)

-

22

-

19.5

-

55.5

39.5 cm

(15.83 in)

-

22.5

-

20

-

56

Download ON Running Shoes Size Vs Nike Size Chart For Women

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Nike Vs On Running Sizing: Men’s Shoes (cm, inches)

cm (inches)

ON Running (US)

Nike (US)

ON Running (UK)

Nike (UK)

ON Running (EU)

Nike (EU)

22.5cm

(8.86 in)

-

3.5

-

3

-

35.5

23cm

(9.05 in)

-

4

-

3.5

-

36

23.5cm

(9.25 in)

-


4.5/5

-

4/4.5

-

36.5/37.5

24cm

(9.45 in)

-

5/5.5

-

5.5/6

-

38/38.5

24.5cm

(9.64 in)

-

6.5

-

6

-

39

25 cm

(9.84 in)

7

7

6.5

6

40

40

25.5 cm

(10.04 in)

7.5

7.5

7

6.5

40.5

40.5

26 cm

(10.24 in)

8

8

7.5

7

41

41

26.5 cm

(10.43 in)

8.5

8

8

7.5

42

42

27 cm

(10.63 in)

9

8.5

8

42.5

42.5

27.5 cm

(10.83 in)

9.5

9.5

9

8.5

43

43

28 cm

(11.02 in)

10

10

9.5

9

44

44

28.5 cm

(11.22 in)

10.5

10.5

10

9.5

44.5

44.5

29 cm

(11.42 in)

11

11

10.5

10

45

45

29.5 cm

(11.61 in)

11.5

11.5

11

10.5

46

45.5

30 cm

(11.81 in)

12

12

11.5

11

47

46

30.5 cm

(12 in)

12.5

12.5

12

11.5

47.5

47

31 cm

(12.20 in)

13

13

12.5

12

48

47.5

31.5 cm

(12.40 in)

14

13.5

13.5

12.5

49

48

32 cm

(12.60 in)

-

14

-

13

-

48.5

32.5 cm

(12.80 in)

-

14.5

-

13.5

-

49

33 cm

(13.0 in)

-

15

-

14

-

49.5

33.5 cm

(13.2 in)

-

15.5

-

14.5

-

50

34 cm

(13.38 in)

-

16

-

15

-

50.5

34.5 cm

(13.58 in)

-

16.5

-

15.5

-

51

35 cm

(13.78 in)

-

17

-

16

-

51.5

35.5 cm

(13.98 in)

-

17.5

-

16.5

-

52

36 cm

(14.17 in)

-

18

-

17

-

52.5

36.5 cm

(14.37 in)

-

18.5

-

17.5

-

53

37 cm

(14.57 in)

-

19

-

18

-

53.5

37.5 cm

(14.76 in)

-

19.5

-

18.5

-

54

38 cm

(14.96 in)

-

20

-

19

-

54.5

38.5 cm

(15.16 in)

-

20.5

-

19.5

-

55

39 cm

(15.35 in)

-

21

-

20

-

55.5

39.5 cm

(15.55 in)

-

21.5

-

20.5

-

56

40 cm

(15.75 in)

-

22

-

21

-

56.5

Download Nike size compared to On Running Size (Men)

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How do ON Running shoes fit compared to Nike?

Both ON Running and Nike fit are pretty comfortable. They have a good width and will not restrict you in any way.

However, I find the fit of ON Running to be slightly more comfortable than Nike, especially in the toe-box.

Otherwise, both the brands are true to size and you need not go up or down a size. In most of the models, ON Running has wide fitting available which is not the case with Nike.

The only thing with ON Running that I don’t like is that it doesn’t have a lot of sizes available. Nike on the other hand has a lot more sizes available and that makes it a better fit for runners with smaller or much bigger foot sizes.

Related: Salomon Vs Nike Sizing: How Different Are They?

Madhusree Basu

Madhusree Basu

Author, Admin

Blogger and a fitness enthusiast. She loves running and Yoga and everything in between. She started running to manage her weight and to eat to her heart’s content. A true foodie at heart she shares whatever knowledge she has gained throughout the years about weight management and fitness.

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