UGG to New Balance Shoe Size Conversion

Switching from UGG to New Balance? UGG runs large and New Balance runs true to size, so the size you order changes. Here's the full chart.

A UGG 8.5 works out to a New Balance 9 — about half a size up. The chart below has every size.

UGG → New Balance: size up half a size

A UGG 8.5 is a New Balance 9.

Find your UGG size on the left, read across for New Balance:

UGG size	New Balance size	UK	EU	Foot (cm)
6	6.5	5.5	37	23.5
6.5	7	6	38	24.3
7	7.5	6.5	38.5	24.7
7.5	8	7	39.5	25.1
8	8.5	7.5	41	25.9
8.5	9	8	41.5	26.3
9	9.5	8.5	42.5	26.7
9.5	10	9	43	27.1
10	10.5	9.5	43.5	27.5
10.5	11	10	44	27.9
11	11.5	10.5	44.5	28.3
11.5	12	11	45.5	28.7
12	12.5	11.5	46	29.1
12.5	13	12	47	29.5
13	13.5	12.5	47.5	29.9
13.5	14	13	48	30.3
14	14.5	13.5	49	31.1
14.5	15	14	49.5	31.5

⚠️ Fit varies by model. UGG runs about half a size large and moulds to the foot — size down half, or a full size for slippers. New Balance runs true to size and is one of the best brands for width options (2A to 4E).

New Balance to UGG → · UGG chart · New Balance chart · Brand finder

What is a UGG 8.5 in New Balance?

A UGG 8.5 is about a New Balance 9 — they share a foot length of roughly 26.3 cm (UK 8, EU 41.5).

Do UGG and New Balance fit the same?

No — UGG runs large and New Balance runs true to size, so size up half a size when you switch.

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