Quick Facts
Australia has no compulsory clothing size system. The women’s standard, AS 1344, is withdrawn and nothing has replaced it, and Australian Standards are voluntary, so each shop prints its own chart. The conversions on this page come from Cotton On’s size guide, with the other charts read here shown beside it.
At Cotton On, women’s AU and UK sizes are the same number. From AU 4 up, the US size is the AU number minus 4 (AU 2 is a US 00), and the EU size is the AU number plus 28. An AU 12 (M) is a UK 12, a US 8 and an EU 40. The same AU number is not the same body everywhere: an AU 12 has a bust of 92 cm at Bonds, 94 cm at Cotton On and 95–100 cm at Seed Heritage.
Measure your bust or chest, waist and hips in cm, then compare them with the seller’s own chart rather than with the size number.
Find your size
Women’s clothing sizes
Read across from your Australian size, or from your UK, US or EU size; the next two tables give the bust, waist and hips for each size.
| Australia | Australia (letter) | UK | US | EU |
|---|---|---|---|---|
| 2 | 4XS | 2 | 00 | 30 |
| 4 | 3XS | 4 | 0 | 32 |
| 6 | 2XS | 6 | 2 | 34 |
| 8 | XS | 8 | 4 | 36 |
| 10 | S | 10 | 6 | 38 |
| 12 | M | 12 | 8 | 40 |
| 14 | L | 14 | 10 | 42 |
| 16 | XL | 16 | 12 | 44 |
| 18 | 2XL | 18 | 14 | 46 |
| Australia | Bust (cm) | Bust (in) | Waist (cm) | Waist (in) |
|---|---|---|---|---|
| 2 | 74 | 29.0 | 60 | 23.5 |
| 4 | 77 | 30.0 | 62 | 24.5 |
| 6 | 80 | 31.5 | 65 | 25.5 |
| 8 | 84 | 33.0 | 68 | 27.0 |
| 10 | 89 | 35.0 | 72 | 28.0 |
| 12 | 94 | 37.0 | 77 | 30.0 |
| 14 | 100 | 39.5 | 83 | 32.5 |
| 16 | 106 | 41.5 | 89 | 35.0 |
| 18 | 113 | 44.5 | 96 | 37.5 |
| Australia | Hips (cm) | Hips (in) |
|---|---|---|
| 2 | 83 | 32.5 |
| 4 | 86 | 34.0 |
| 6 | 89 | 35.0 |
| 8 | 93 | 36.5 |
| 10 | 98 | 38.5 |
| 12 | 103 | 40.5 |
| 14 | 109 | 43.0 |
| 16 | 115 | 45.0 |
| 18 | 122 | 48.0 |
Cotton On does not say whether these are body or garment measurements. This page doesn’t cover plus, petite or tall sizes; use the seller’s chart.
| Australia | Cotton On | Seed Heritage | Bonds |
|---|---|---|---|
| 2 | 4XS | – | – |
| 4 | 3XS | XXXS | – |
| 6 | 2XS | XXS | – |
| 8 | XS | XS | XS |
| 10 | S | S | S |
| 12 | M | M | M |
| 14 | L | L | L |
| 16 | XL | XL | XL |
| 18 | 2XL | XXL | XXL |
| 20 | – | – | XXXL |
| Australia | Cotton On (cm) | Seed Heritage (cm) | Bonds (cm) |
|---|---|---|---|
| 2 | 74 | – | – |
| 4 | 77 | 75–80 | – |
| 6 | 80 | 80–85 | – |
| 8 | 84 | 85–90 | 82 |
| 10 | 89 | 90–95 | 87 |
| 12 | 94 | 95–100 | 92 |
| 14 | 100 | 100–105 | 97 |
| 16 | 106 | 105–110 | 102 |
| 18 | 113 | 110–115 | 107 |
| 20 | – | – | 112 |
Men’s clothing sizes
Cotton On labels men’s sizes by letter. The UK and US number beside each letter is about the chest in inches for tops and the waist in inches for trousers.
Men’s tops
Read across from your letter or your UK or US number; the second table gives the chest for each size.
| Australia | UK | US |
|---|---|---|
| 3XS | 30 | 30 |
| 2XS | 32 | 32 |
| XS | 35 | 35 |
| S | 37 | 37 |
| M | 39 | 39 |
| L | 41 | 41 |
| XL | 44 | 44 |
| 2XL | 46 | 46 |
| 3XL | 48 | 48 |
| Australia | Chest (cm) | Chest (in) |
|---|---|---|
| 3XS | 77 | 30.3 |
| 2XS | 83 | 32.7 |
| XS | 89 | 35.0 |
| S | 95 | 37.4 |
| M | 100 | 39.4 |
| L | 105 | 41.3 |
| XL | 111 | 43.7 |
| 2XL | 117 | 46.1 |
| 3XL | 123 | 48.4 |
Cotton On also prints an EU number for tops (39 to 62). It is about half the chest in cm, not the EU size that other stores use, so it is left out. Seed Heritage’s chest ranges per letter (M is 100–105 cm) are within about 1 cm of Cotton On’s figures, but other brands may still use other letters.
Men’s trousers
Read across from your letter or your UK or US number; the second table gives the waist and hips for each size.
| Australia | UK | US |
|---|---|---|
| 3XS | 24 | 24 |
| 2XS | 26 | 26 |
| XS | 28 | 28 |
| S | 30 | 30 |
| M | 32 | 32 |
| L | 34 | 34 |
| XL | 36 | 36 |
| 2XL | 38 | 38 |
| 3XL | 40 | 40 |
| Australia | Waist (cm) | Waist (in) | Hips (cm) | Hips (in) |
|---|---|---|---|---|
| 3XS | 62 | 24.4 | 82 | 32.3 |
| 2XS | 67 | 26.4 | 87 | 34.3 |
| XS | 72 | 28.3 | 92 | 36.2 |
| S | 77 | 30.3 | 97 | 38.2 |
| M | 82 | 32.3 | 102 | 40.2 |
| L | 87 | 34.3 | 107 | 42.1 |
| XL | 92 | 36.2 | 112 | 44.1 |
| 2XL | 97 | 38.2 | 117 | 46.1 |
| 3XL | 102 | 40.2 | 122 | 48.0 |
Cotton On’s page has no separate jeans table: jeans follow the same bottoms chart. Its EU number for bottoms is always the waist in inches plus 10, so it is left out.
Children’s clothing sizes
Choose by height: in these charts the size number follows the child’s height, and age is only a guide. Australia’s children’s clothing standard, AS 1182, is listed as current, but its tables are not free to read, so the sizes below are Seed Heritage’s and Bonds’. Neither shop separates girls’ and boys’ sizes.
| Australia | Height (cm) | Height (in) | Age |
|---|---|---|---|
| 2 | 92 | 36.2 | 1–2 |
| 3 | 100 | 39.4 | 2–3 |
| 4 | 108 | 42.5 | 3–4 |
| 5 | 115 | 45.3 | 4–5 |
| 6 | 120 | 47.2 | 5–6 |
| 7 | 125 | 49.2 | 6–7 |
| 8 | 130 | 51.2 | 7–8 |
| 9 | 135 | 53.1 | 8–9 |
| 10 | 140 | 55.1 | 9–10 |
| 12 | 150 | 59.1 | – |
| 14 | 160 | 63.0 | – |
At Seed Heritage the size is the top of the age range: size 6 is 5–6 years. A child above or below the average height for their age should go by the height column.
Baby clothing sizes
Baby sizes use zeros: 00000 is the smallest and 2 is the largest in these charts. Height is the better guide than age.
| Australia | Age | Height (cm) | Height (in) |
|---|---|---|---|
| 00000 | Teeny | 50 | 19.7 |
| 0000 | Newborn | 56 | 22.0 |
| 000 | 0–3 months | 62 | 24.4 |
| 00 | 3–6 months | 68 | 26.8 |
| 0 | 6–12 months | 80 | 31.5 |
| 1 | 12–18 months | 86 | 33.9 |
| 2 | 18–24 months | 92 | 36.2 |
Cotton On lists one weight per size, not a band: 3 kg for 00000, 4 kg for 0000, 6 kg for 000, 8 kg for 00, 10 kg for 0, 12 kg for 1 and 13.5 kg for 2. Seed Heritage and Bonds print the same weights for sizes 000 to 1.
| Australia | Cotton On (cm / kg) | Seed Heritage (cm / kg) | Bonds (cm / kg) |
|---|---|---|---|
| 00000 | 50 / 3 | 50 / 3 | 50 / 2 |
| 0000 | 56 / 4 | 55 / 4 | 56 / 3 |
| 000 | 62 / 6 | 62 / 6 | 62 / 6 |
| 00 | 68 / 8 | 68 / 8 | 68 / 8 |
| 0 | 80 / 10 | 76 / 10 | 76 / 10 |
| 1 | 86 / 12 | 84 / 12 | 84 / 12 |
| 2 | 92 / 13.5 | 92 / 14 | 92 / – |
Quick answers
- What is a US 8 in Australia? An AU 12 (M) at Cotton On, which is also a UK 12 and an EU 40. Other brands may differ.
- What is a UK 14 in Australia? An AU 14 (L) at Cotton On, because its women’s AU and UK sizes are the same number.
- What is an EU 38 in Australia? An AU 10 (S) at Cotton On, which is a UK 10 and a US 6.
- What is a men’s M in Australia? At Cotton On, an M is a UK and US 39 for tops (chest 100 cm) and a 32 for trousers (waist 82 cm).
- What size is a 120 cm child? Size 6, at both Seed Heritage and Bonds. Seed lists it as 5–6 years.
- Is an AU 12 always an M? Cotton On, Seed Heritage and Bonds all label it M, but the bust differs: 92 cm at Bonds, 94 cm at Cotton On and 95–100 cm at Seed Heritage.
How to measure
Measure your body in cm, then compare the numbers with the seller’s size chart.
Check a listing
Sellers often list the garment’s own measurements; this tool compares them with yours.
Tips for ordering from Australian stores
- Measure and compare. Take your measurements in cm and compare them with the seller’s own chart. The charts read here do not say whether their figures are body or garment measurements, so check the listing.
- The number is not a standard. Australian sizing standards are voluntary, so an AU number or letter means slightly different measurements at each shop.
- Children: use height. Kids’ heights agree between Seed Heritage and Bonds. Baby heights differ by up to 4 cm between shops (see the baby by-brand table), so for babies go by the seller’s own chart; treat age and weight as guides.
- Check the returns. Cotton On’s US returns page says free shipping on change-of-mind returns applies only inside the country of purchase, and delivery fees are not refunded. Read the seller’s terms before you order.
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