International Clothing Size Chart: US, UK, EU, AU Conversion

Updated: May 27, 2026

Women’s Size Conversion Chart

Body measurements in inches. UK = US + 4 (numeric). EU based on chest circumference in cm.

US	US Letter	UK	EU	AU	Bust (in)	Waist (in)	Hips (in)
0	XXS	4	32	4	30.5	23.0	33.5
2	XS	6	34	6	31.5	24.0	34.5
4	XS	8	36	8	32.5	25.0	35.5
6	S	10	38	10	33.5	26.0	36.5
8	S	12	40	12	34.5	27.0	37.5
10	M	14	42	14	35.5	28.0	38.5
12	M	16	44	16	36.5	29.0	39.5
14	L	18	46	18	37.5	30.0	40.5
16	L	20	48	20	38.5	31.0	41.5
18	XL	22	50	22	40.0	32.5	43.0
20	XXL	24	52	24	42.0	35.0	45.0
22	3XL	26	54	26	44.0	37.0	47.0
24	3XL+	28	56	28	46.0	39.0	49.0

Bold = most common US women’s size (M/10).

Men’s Size Conversion Chart

US Letter	UK	EU	Chest (in)	Waist (in)
XS	XS	42	30–34	24–28
S	S	44/46	34–37	28–31
M	M	48/50	38–41	32–34
L	L	52/54	42–45	35–38
XL	XL	56/58	46–49	39–42
XXL	XXL	60/62	50–53	43–46
3XL	3XL	64+	54–60	47–54

Bold = most common US men’s size (M). For suits: US/UK suit size = chest measurement in inches (40R = 40” chest). EU suit = chest × 2 (approximately).

Kids’ Size Conversion Chart

US Size	Age Approx.	EU	Height (in)	Height (cm)
2T	18m–2yr	86/92	30–34	76–86
3T	2–3yr	92/98	34–38	86–97
4T	3–4yr	98/104	38–41	97–104
5	4–5yr	104/110	41–44	104–112
6	5–6yr	110/116	44–47	112–119
7	6–7yr	116/122	47–50	119–127
8	7–8yr	122/128	50–52	127–132
10	8–10yr	134/140	52–56	132–142
12	10–12yr	146/152	56–59	142–150
14	12–14yr	158/164	59–62	150–157
16	13–15yr	164/170	62–65	157–165

Bold = most common starting size where kids’ sizing transitions from toddler to big-kid proportions.

Japanese Clothing Sizes (Women’s)

Japan uses a different sizing system. Women’s Japanese sizes use numbers but differ from US numeric:

JP	US	EU	Bust (cm)	Waist (cm)
5	0–2	32–34	76–79	58–61
7	2–4	34–36	79–82	61–64
9	4–6	36–38	82–85	64–67
11	8–10	40–42	85–88	67–70
13	10–12	42–44	88–92	70–74
15	14–16	44–46	92–96	74–78

Conversion Formulas

Women’s US → UK (numeric): UK = US + 4
Women’s US → EU: EU ≈ (bust in cm) — nearest even number
Men’s EU: EU = chest in cm (rounded to nearest even)
Men’s suit US/UK → EU: EU = (chest in inches × 2) + 8

Why Sizes Vary by Brand

Sizing charts above are based on ASTM D5585 (women) and ISO 3635 (international) standards. However, brands use their own blocks:

Vanity sizing: A brand’s size 10 may fit measurements that would be a 12 by standard charts — see Why Clothing Sizes Vary by Brand
Junior vs misses sizing: Junior (1/3/5/7) runs smaller than misses (2/4/6/8) — see US vs UK vs EU Clothing Sizes for the full junior vs misses breakdown
Plus size: US plus sizing (1X/2X/3X) correlates to letter sizes but with different proportions

Always check the specific brand’s size chart for exact measurements.

Use the Clothing Size Calculator to find your size from measurements instantly.