Dress Size Converter

Convert dress sizes between countries

Q: What is a US size 10 in UK, EU and Australian sizing?

On the standard chart, a US 10 is a UK 14, an EU 42 and an AU 14. The body it is cut for measures about 38″ bust, 30″ waist and 41″ hips.

Q: Why did the converted size fit differently from my usual one?

Conversion maps labels, not garments. The arithmetic is exact, but brands in every country grade their charts differently, so a converted size is a starting point — your bust, waist and hip measurements against the brand's own chart are the final word.

Pick the size you know; get the equivalent in every other system — plus the measurements that size is actually cut for, so you can check it against your own.

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How conversion works

Three rules convert the whole chart

UK = US + 4

British labels run four numbers ahead of American ones for the same garment. US 8 is UK 12; US 16 is UK 20. Going the other way, subtract 4.

EU = US + 32

The mainstream European number (used in France, Germany, Spain and most high-street labels) sits 32 above the US number. US 10 is EU 42.

AU = UK numbers

Australian labels use the same numbers as UK labels. An AU 14 is a UK 14 and a US 10 — though some Australian brands cut slightly smaller at the waist.

The one exception worth knowing: Italy runs its own offset — roughly EU + 6, so an EU 42 is about an Italian 48; treat Italian labels individually rather than converting blindly. And in every country, these rules convert labels — they cannot convert a brand that grades its own chart generously or tightly. That's why the converter above also shows you the body measurements for your size: compare those with your own three numbers, and with the brand's chart, before money changes hands.

Worked conversions

Three conversions, checked against the chart

US 10from a US store

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UK 14 · EU 42 · AU 14

Cut for bust 38″, waist 30″, hips 41″. If your waist is 31″, this will be snug in a fitted dress no matter which country's label you buy.

UK 18from a UK store

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US 14 · EU 46 · AU 18

Minus 4 for the US, plus 32 for the EU. Cut for bust 41″, waist 33″, hips 44″.

EU 38from a European label

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US 6 · UK 10 · AU 10

Minus 32 gives the US 6. Cut for bust 35.5″, waist 27.5″, hips 38.5″ — a useful check, because some EU labels cut this size noticeably smaller.

The full chart

Every conversion, with measurements

US	UK	EU	AU	Letter	Bust up to	Waist up to	Hips up to
US 00	UK 2	EU 30	AU 2	XXS	31″ / 78.5cm	23″ / 58.5cm	34″ / 86.5cm
US 0	UK 4	EU 32	AU 4	XS	32.5″ / 82.5cm	24.5″ / 62cm	35.5″ / 90cm
US 2	UK 6	EU 34	AU 6	XS	33.5″ / 85cm	25.5″ / 65cm	36.5″ / 92.5cm
US 4	UK 8	EU 36	AU 8	S	34.5″ / 87.5cm	26.5″ / 67.5cm	37.5″ / 95.5cm
US 6	UK 10	EU 38	AU 10	S	35.5″ / 90cm	27.5″ / 70cm	38.5″ / 98cm
US 8	UK 12	EU 40	AU 12	M	36.5″ / 92.5cm	28.5″ / 72.5cm	39.5″ / 100.5cm
US 10	UK 14	EU 42	AU 14	M	38″ / 96.5cm	30″ / 76cm	41″ / 104cm
US 12	UK 16	EU 44	AU 16	L	39.5″ / 100.5cm	31.5″ / 80cm	42.5″ / 108cm
US 14	UK 18	EU 46	AU 18	L	41″ / 104cm	33″ / 84cm	44″ / 112cm
US 16	UK 20	EU 48	AU 20	XL	43″ / 109cm	35″ / 89cm	46″ / 117cm
US 18	UK 22	EU 50	AU 22	XL	45″ / 114.5cm	37.5″ / 95.5cm	48″ / 122cm
US 20	UK 24	EU 52	AU 24	XXL	47″ / 119.5cm	40″ / 101.5cm	50″ / 127cm

Measurements are the body size each label fits up to, on the consensus chart this site runs on. The full chart — including centimetres, plus and petite — is on the dress size chart page.

Before you order

What conversion can't do

It can't fix brand variance

A converted size assumes both brands use the standard chart. A brand that cuts generously in the US and a brand that cuts tightly in the UK can leave you a full size out after a "correct" conversion. The measurements column is your defence.

It can't move between fit ranges

Petite, tall and plus ranges exist in every country but convert independently. A US 14W is not a UK 18 plus — plus ranges have their own charts, covered by the plus size calculator.

Questions

Before you ask

What is a US size 10 in UK, EU and Australian sizing?

On the standard chart, a US 10 is a UK 14, an EU 42 and an AU 14. The body it is cut for measures about 38″ bust, 30″ waist and 41″ hips.

How do I convert a UK dress size to US?

Subtract 4. A UK 16 is a US 12, a UK 12 is a US 8. The reverse — US to UK — is add 4. This one rule covers the whole misses chart.

How do I convert EU dress sizes to US?

Subtract 32. An EU 44 is a US 12, an EU 38 is a US 6. Wording varies by country — the same number is a French 44, a German 44 and roughly an Italian 48, because Italy runs its own offset (+6 on the EU number).

Are Australian dress sizes the same as UK sizes?

The numbers match — an AU 14 is a UK 14 — and the charts are close, but not identical: some Australian brands cut a fraction smaller through the waist. Treat the number as converted, then check the brand's own measurements before ordering.

What about Canadian dress sizes?

Canadian sizing generally follows US numbers. A US 10 is a CA 10 at most national brands, though some Canadian labels use their own charts — the same "measurements beat labels" rule applies.

Why did the converted size fit differently from my usual one?

Conversion maps labels, not garments. The arithmetic is exact, but brands in every country grade their charts differently, so a converted size is a starting point — your bust, waist and hip measurements against the brand's own chart are the final word.

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Reference

Full Size Chart

Every size in US, UK, EU and AU — with cm, plus and petite tables included.

See the full chart →

Who made this · How it's sourced

Built by a person, checked against sources

Ian Welkins

Builder & maintainer

I build small, single-purpose calculators and check every number they print. This one exists because dress sizing is a mess of unregulated charts — the least I could do was gather the published ones in one place and show the working.

Found a chart that disagrees with ours? That's exactly what the report-an-error page is for — corrections get checked and the page gets updated.

Last verified: November 2026 · Charts re-checked against the sources listed here

Methods & sources

ASTM D5585Standard tables of body measurements for adult female misses figure type
ISO 8559Size designation of clothes — anthropometric survey definitions
Published brand charts (consensus)Cross-checked across major retailers' published size charts; where brands disagree, the median value is used and the variance disclosed

Method in one line: match each measurement to the consensus chart, round up between sizes, let the largest measurement govern — then adjust for the style of dress.