Size charts / New Balance to On size conversion

New Balance to On size conversion

New Balance and On sizes side by side for the same US size, men's and women's. The EU and UK labels come from each brand's own size chart. They compare size labels and do not assess product fit.

Size charts: New Balance · On

Men's

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New Balance and On men's sizes by US size
US	New Balance EU	On EU	New Balance UK	On UK
7	40	40	6.5	6.5
7.5	40 1/2	40 1/2	7	7
8	41 1/2	41	7.5	7.5
8.5	42	42	8	8
9	42 1/2	42 1/2	8.5	8.5
9.5	43	43	9	9
10	44	44	9.5	9.5
10.5	44 1/2	44 1/2	10	10
11	45	45	10.5	10.5
11.5	45 1/2	46	11	11
12	46 1/2	47	11.5	11.5
12.5	47	47 1/2	12	12
13	47 1/2	48	12.5	12.5
14	49	49	13.5	13.5

Women's

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New Balance and On women's sizes by US size
US	New Balance EU	On EU	New Balance UK	On UK
5	35	36	3	3
5.5	36	36 1/2	3.5	3.5
6	36 1/2	37	4	4
6.5	37	37 1/2	4.5	4.5
7	37 1/2	38	5	5
7.5	38	38 1/2	5.5	5.5
8	39	39	6	6
8.5	40	40	6.5	6.5
9	40 1/2	40 1/2	7	7
9.5	41	41	7.5	7.5
10	41 1/2	42	8	8
10.5	42 1/2	42 1/2	8.5	8.5
11	43	43	9	9

Questions

Is a New Balance EU size the same as a On EU size?: Not always. For 5 of 14 shared US men's sizes, the EU label differs. For example, US 11.5 is EU 45 1/2 at New Balance and EU 46 at On.
What is a New Balance US 11.5 in On?: At On, US 11.5 men's is EU 46 and UK 11. At New Balance, it is EU 45 1/2 and UK 11.
Which sizes does the table cover?: Men's: US 7 to US 14 (14 sizes). Women's: US 5 to US 11 (13 sizes). The table shows only the US sizes that both charts list.
Does this table tell me how a shoe fits?: No. It compares the size labels of the New Balance and On charts. Fit depends on the model; check the maker's guide for the model you want.