EN 13402 : European standard for labelling clothes sizes.

Reference : Wikipedia

EN 13402 : European standard for labelling clothes sizes.

Women's Dresses and Suits

United States	2	4	6	8	10	12	14	16	18
Europe (Italy)	36	38	40	42	44	46	48	50	52
Europe (Scandinavia and Germany)	32	34	36	38	40	42	44	46	48
Europe (France, Spain and Portugal)	34	36	38	40	42	44	46	48	50
Europe (UK and Ireland)	4	6	8	10	12	14	16	18	20
Japan	5	7	9	11	13	15	17	19	21

Women
: Dress sizes

The standard sizes and ranges for bust, waist and hip girth are:

Bust girth	76	80	84	88	92	96	100	104	110
Range	74-78	78-82	82-86	86-90	90-94	94-98	98-102	102-107	107-113
Waist girth	60	64	68	72	76	80	84	88	94
Range	58-62	62-66	66-70	70-74	74-78	78-82	82-86	86-91	91-97
Hip girth	84	88	92	96	100	104	108	112	117
Range	82-86	86-90	90-94	94-98	98-102	102-106	106-110	110-115	115-120

Bust girth	116	122	128	134	140	146	152
Range	113-119	119-125	125-131	131-137	137-143	143-149	149-155
Waist girth	100	106	112	118	124	130	136
Range	97-103	103-109	109-115	115-121	121-127	127-133	133-139
Hip girth	122	127	132	137	142	147	152
Range	120-125	125-130	130-135	135-140	140-145	145-150	150-155