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The International Size Reference Guide

Bikini Size Chart, UK

Determine UK Bikini Size

How to Measure Bikini Size

Determine UK Bikini Size based on bust, waist and hips measurements
Measure Hips: Measure circumference around the fullest part of your hips.
Measure Waist: Measure circumference around your natural waistline. Not sure where you waistline is? Your waistline is located just above your belly button. It is the narrowest/slimmest part of your torso. To locate it, stand in front of a mirror, and bend to one side. Your natural waistline is simply where you can see a natural indentation in torso on this side. Make sure to keep the measuring tape parallel with floor while measuring.
Measure Bust: Measure over the fullest part of your bust and all the way around your body. Keep measuring tape parallel with floor.

Use your measurements to determine your bikini size (bikini bottom and bikini top) with our UK bikini size charts below.

Bikini Bottom Size Chart, UK

All measurements in inches. UK size in paranthesis.
XXS (4) 24 35
XS (6) 25 36
S (8) 26 37
S (10) 27 38
M (12) 28 39
M (14) 29 40
L (16) 30.5 41.5
L (18) 32 43
XL (20) 34 44.5

Bikini Top Size, UK

Bikini top sizes are given in three (3) different ways, depending on brand and model:

1. Bra Size is used. Then you pick bikini bottom size and bikini top size separately. See here to determine your UK bra size. Size example: Bottom Size: 12/M, Top Size: 34C

2. Bikini top size is determined with the same size system as the bikini bottom, just by adding your bust measurement in addition to waist and hips measurements. Size example: Bikini Bottom: 12/M, Top Size: 12/M (if you can pick bottom size and top size separately) or Bikini Size: 12/M (if sized as a set). Use the bikini size chart below to determine your bikini top size.:
Bust Waist
XXS (4) 32 24 35
XS (6) 33 25 36
S (8) 34 26 37
S (10) 35 27 38
M (12) 36 28 39
M (14) 37 29 40
L (16) 38.5 30.5 41.5
L (18) 40 32 43
XL (20) 41.5 34 44.5

3. Bikini top size is given with a cup size in addition to the main bikini size (bikini bottom size). Cup size is determined from your bra size. Bikini size example: 12/M C. See size chart below to convert your bra size into bikini cup size:

Bikini Cup AA
UK Bra Size: 30A 32AA, 32A, 34AA
Bikini Cup A
UK Bra Size: 30B, 32B, 34A, 36AA
Bikini Cup B
UK Bra Size: 32C, 34B, 36A, 38AA, 38A
Bikini Cup C
UK Bra Size: 32D, 34C, 36B, 38B
Bikini D Cup
UK Bra Size: 32DD, 34D, 36C, 38C
Bikini DD Cup
US Bra Size: 32E, 34DD, 36D, 38D
Bikini DDD(E) Cup
US Bra Size: 32F, 34E, 36DD, 38DD

Tips, Tricks or Questions?

Tips, tricks or questions about UK bikini sizing (bikini tops or bikini bottoms)? Please post below. Thanks!

Note: All our size charts are guidelines.

Sizes may vary with brands, models and manufacturers. Due to this fact, we can not guarantee that our size charts always will show the right sizes.

You are welcome to link to our size charts from your blog/website/webshop. Store owners may also refer to our size charts in their store(s). Thanks a bunch!

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MG // Martin Granum

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