Women's Swimwear & Beachwear
Size Guide

ASOS brand sizes are designed to fit to the following body measurements:
Some brands may vary from these measurements but you can still use them as a guide.

Swimsuits, Tankinis, Bikini Bottoms & Beach Clothing

US Size Bust Waist Hips
Inches CM Inches CM Inches CM
2 31 78.5 23.75 60.5 33.75 86
4 32 81 24.75 63 34.75 88.5
6 34 86 26.75 68 36.75 93.5
8 36 91 28.75 73 38.75 98.5
10 38 96 30.75 78 40.75 103.5
12 40 101 32.75 83 42.75 108.5
14 43 108.5 35.75 90.5 45.75 116
XS 31 78.5 23.75 60.5 33.75 86
S 32-34 81-86 24.75-26.75 63-68 34.75-36.75 88.5-93.5
M 36-38 91-78 28.75-30.75 73-78 38.75-40.75 98.5-103.5
L 40-43 101-108.5 32.75-35.75 83-90.5 42.75-45.75 108.5-116
XL 45.5 116 38.5 98 48.5 123.5

Clothing - International single size conversion

US 0 2 4 6 8 10 12 14 16 18 20 22
UK 4 6 8 10 12 14 16 18 20 22 24 26
EU 32 34 36 38 40 42 44 46 48 50 52 54
AU 4 6 8 10 12 14 16 18 20 22 24 26

ASOS Bikini Tops

ASOS own brand bikini tops come in UK sizing, please see chart below for conversion to EU and US sizes

UK US EU AU
32A 32A 70A 32A
32B 32B 70B 32B
32C 32C 70C 32C
32D 32D 70D 32D
32DD/E 32DD 70E 32DD
32DDD/F 32E 70F 32E
32G 32F 70G 32F
34A 34A 75A 34A
34B 34B 75B 34B
34C 34C 75C 34C
34D 34D 75D 34D
34DD/E 34DD 75E 34DD
34DDD/F 34E 75F 34E
34G 34F 75G 34F
36A 36A 80A 36A
36B 36B 80B 36B
36C 36C 80C 36C
36D 36D 80D 36D
36DD/E 36DD 80E 36DD
36DDD/F 36E 80F 36E
36G 36F 80G 36F
38A 38A 85A 38A
38B 38B 85B 38B
38C 38C 85C 38C
38D 38D 85D 38D
38DD/E 38DD 85E 38DD
38DDD/F 38E 85F 38E
38G 38F 85G 38F