US ⇄ China clothing size converter
Convert US clothing sizes (S/M/L, women’s 0–18) to Chinese sizes and 号型 like 170/88A, from your height, chest and waist. Men, women, tops and pants, plus kids by height (2T–16 ⇄ 90–160). Based on GB/T 1335.
- China top 号型
- 170/92A
- China pants 号型
- 170/78A
- China letter size
- L
- US letter size (typical)
- S
- Waist in inches / 市尺
- 30.7 in · 2尺3
Measure the body, not a garment: chest at the fullest point, waist at the natural waist.
Men’s sizes: US ⇄ China
| US | Chest / bust | Waist | China letter | China 号型 (top / pants) |
|---|---|---|---|---|
| XS | 32–34 in 81–86 cm | 26–28 in 66–71 cm | S | 165/84A 165/72A |
| S | 35–37 in 89–94 cm | 29–31 in 74–79 cm | L | 175/92A 175/80A |
| M | 38–40 in 97–102 cm | 32–34 in 81–86 cm | XXL | 185/100A 185/88A |
| L | 41–43 in 104–109 cm | 35–37 in 89–94 cm | 4XL | 190/108A 190/96A |
| XL | 44–46 in 112–117 cm | 38–40 in 97–102 cm | 6XL | 190/116A 190/104A |
| XXL | 47–49 in 119–124 cm | 41–43 in 104–109 cm | 6XL | 190/120A 190/108A |
Women’s sizes: US ⇄ China
| US | Chest / bust | Waist | China letter | China 号型 (top / pants) |
|---|---|---|---|---|
| XS (0–2) | 32–33 in 81–84 cm | 24–25 in 61–64 cm | M | 160/84A 160/68A |
| S (4–6) | 34–35 in 86–89 cm | 26–27 in 66–69 cm | L | 165/88A 165/72A |
| M (8–10) | 36–37 in 91–94 cm | 28–29 in 71–74 cm | XL | 170/92A 170/76A |
| L (12–14) | 38.5–40 in 98–102 cm | 30.5–32 in 77–81 cm | 3XL | 180/100A 180/84A |
| XL (16–18) | 41.5–43 in 105–109 cm | 33.5–35 in 85–89 cm | 5XL | 180/108A 180/92A |
Chinese letter sizes and their 号型
| Letter | Top | Pants |
|---|---|---|
| S | 165/84A | 165/72A |
| M | 170/88A | 170/76A |
| L | 175/92A | 175/80A |
| XL | 180/96A | 180/84A |
| XXL | 185/100A | 185/88A |
| 3XL | 190/104A | 190/92A |
| 4XL | 190/108A | 190/96A |
| Letter | Top | Pants |
|---|---|---|
| XS | 150/76A | 150/60A |
| S | 155/80A | 155/64A |
| M | 160/84A | 160/68A |
| L | 165/88A | 165/72A |
| XL | 170/92A | 170/76A |
| XXL | 175/96A | 175/80A |
| 3XL | 180/100A | 180/84A |
Typical pairing used by most Chinese brands (A body type). Brands may shift one size.
Kids’ clothing: US ⇄ China by height
| US size | Height (in) | Height (cm) | China label |
|---|---|---|---|
| 2T | 33–35.5 | 84–9 | 90 |
| 3T | 35.5–38.5 | 9–98 | 100 |
| 4T | 38.5–41 | 98–104 | 110 |
| 5T | 41–43.5 | 104–11 | 110 |
| 6 | 43.5–47 | 11–119 | 120 |
| 7 | 47–50 | 119–127 | 130 |
| 8 | 50–52.5 | 127–133 | 135 |
| 10 | 52.5–55.5 | 133–141 | 145 |
| 12 | 55.5–58.5 | 141–149 | 150 |
| 14 | 58.5–61.5 | 149–156 | 160 |
| 16 | 61.5–64 | 156–163 | 165 |
How Chinese 号型 sizing works
China’s clothing sizes follow GB/T 1335: GB/T 1335.1-2008 for men, GB/T 1335.2-2008 for women and GB/T 1335.3-2009 for children. A label like 175/92A reads height / chest (tops) or height / waist (pants), in centimetres. Adult sizes step 5 cm in height and 4 cm in chest; pants step 4 cm or 2 cm in waist. Children’s clothes skip the body-type letter and are mainly labeled by height: 10 cm steps from 80 to 130 cm, then 5 cm steps.
| Type | Men | Women | Build |
|---|---|---|---|
| Y | 17–22 | 19–24 | Slim / athletic |
| A | 12–16 | 14–18 | Average |
| B | 7–11 | 9–13 | Slightly full |
| C | 2–6 | 4–8 | Full |
US letter sizes have no national standard: each brand publishes its own chart, loosely based on ASTM body-measurement tables. US cuts are also looser, which is why the same person often wears a US M and a Chinese XL. When buying across borders, compare your chest and waist in cm with the brand’s chart.
FAQ
What does 170/88A mean on Chinese clothes?
It is the 号型 from China’s GB/T 1335 standard: 170 is the wearer’s height in cm, 88 is the chest (for tops) or waist (for pants) in cm, and A is the body type — the gap between chest and waist (A = 12–16 cm for men, 14–18 cm for women). 170/88A is the classic men’s M; 160/84A is the classic women’s M.
Is a US M bigger than a Chinese M?
Yes, usually by about two sizes. A US men’s M fits a 38–40 in (97–102 cm) chest, which is XL–XXL on the Chinese 号型 scale (180/96A–185/100A). A US women’s S (4–6) is about a Chinese L (165/88A). Always compare chest and waist in cm rather than the letter.
How do I convert US pants sizes like 32×30?
The first number is the waist in inches and the second is the inseam (inside leg) in inches. 32 in = 81 cm waist ≈ Chinese 2尺4 (市尺, 1 尺 = 33.3 cm); inseam 30 in = 76 cm. Jeans in China often use the same inch numbers (29, 30, 31…).
What size is 2T, 3T, 4T in China?
Chinese kids’ clothes are labeled by height in cm (GB/T 1335.3). 2T fits about 84–90 cm (China 90), 3T about 90–98 cm (China 100), 4T about 98–104 cm (China 110). Pick the label at or above your child’s current height.
Sources
- 服装号型 (GB/T 1335.1 / 1335.2 garment sizes) — Baidu Baike
- GB/T 1335.3-2009 standard listing
- GB/T 1335.3-2009 children’s 号型 explainer (Zhihu)
- ASTM D6240 — men’s body measurements (US sizing basis)
- ASTM D5585 — women’s misses body measurements
US ranges are typical of major US brands; every brand differs a little.