ASOS Size Chart

Global fast fashion · women's

ASOS is a British online retailer whose own-brand ASOS Design womenswear uses UK numeric sizing from 4 to 18 as the primary label, with body measurements published in centimetres. A UK 10 fits roughly a 91.5cm bust, 72.5cm waist and 96.5cm hip, which equals an Australian 10 and a US 6. The most useful thing to know is that ASOS Design follows standard UK body measurements fairly closely, but because ASOS sells across many sub-ranges, fit can vary by style — the brand itself flags that some lines differ from the base chart. Australian women's sizing matches UK numbers, so there is no conversion needed beyond reading the UK label. ASOS also runs separate Petite, Tall and Curve charts with different proportions. When buying ASOS Design secondhand, work from the UK size and the centimetre measurements together, and check whether a piece belongs to a speciality range before trusting the standard chart.

ASOS Design uses UK numeric sizing (4–18) as its primary label, with body measurements published in centimetres. Australian sizing follows UK numbers.

ASOS body measurements

Size	Letter	Bust (cm)	Waist (cm)	Hip (cm)
4	XS	81.5	62	86.5
6	XS	84	65	89
8	S	86.5	67.5	91.5
10	S/M	91.5	72.5	96.5
12	M	96.5	77.5	101.5
14	L	101.5	82.5	106.5
16	XL	106.5	87.5	112

Note: we could not fully confirm this chart against a standalone official source. Measure the garment flat before buying.

ASOS international size conversion

AU	US	UK	EU
4	0	4	32
6	2	6	34
8	4	8	36
10	6	10	38
12	8	12	40
14	10	14	42
16	12	16	44

How ASOS fits

ASOS Design follows standard UK body measurements fairly closely, but fit varies by style across the brand's many ranges — ASOS itself flags that some lines differ from the base chart. Petite, Tall and Curve lines use separate charts.

ASOS sizing — frequently asked questions

Does ASOS use UK or US sizing?

ASOS uses UK sizing as the primary label for its own-brand womenswear — a UK 10, 12 and so on. US shoppers subtract four (UK 12 = US 8), and Australian women's sizing matches the UK numbers directly, so an ASOS UK 10 is an AU 10.

What is an ASOS UK 10 in centimetres?

An ASOS Design UK 10 fits roughly a 91.5cm bust, 72.5cm waist and 96.5cm hip, equal to an AU 10, US 6 and EU 38. These are body measurements, so measure yourself and match to the chart rather than the finished garment.

Why does ASOS sizing vary between items?

ASOS carries many sub-ranges and notes that some lines differ from its base chart, so the same UK size can fit differently across styles. Petite, Tall and Curve lines use separate charts entirely, so check which range a piece belongs to before relying on the standard sizing.

How to measure ASOS against your own wardrobe

The most reliable way to check fit is to compare ASOS's chart above to an item you already own. Lay it flat and measure in centimetres — see the full how-to-measure guide for step-by-step instructions.

Tops & dresses — measure flat, then double the bust, waist and hip figures for the full circumference.

Bottoms — measure flat, then double the waist and hip figures for the full circumference.

Dresses — lay flat with straps up, then double the chest, waist and hip figures for the full circumference.

Shoes — place the shoe on a flat surface or a sheet of paper, trace around the sole, then measure heel to toe in a straight line.

Found your size? Shop ASOS secondhand on Bushpop.

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Last verified: June 2026. Source: sizecharter.com.