Bra Size Converter

Convert the bra sizes


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Table of content
1Bra size 
2Band size
3Cup size

Many women do not know how to measure their correct bra size, nor are they able to be measured conveniently. As a result, they use bras that are never fitted properly. Our bra size converter is a free online bust to bra size converter for bra conversion. You only need your band size and cup size for bra size conversion. It converts your bra size according to the location you have mentioned because bra sizes vary in different regions of the world. It can also convert UK to US bra size. 

We have provided a detailed method to calculate band and cup size if you are not sure how to measure them. We have also provided a bra size conversion chart below for you so that you can easily convert your bra size. Use the below method to find your band and cup size using the bra conversion chart and the values in our converter to convert your bra size on one click.

Bra size 

A bra size can be evaluated by using band size and cup size. These both sizes are very important in measuring the bra size.

Band size

The band size is the measurement of bra around the chest. Band sizes vary from country to country. It could be small in one country and medium in another country, depending on the physique. For band size measurement, see the table below, although some variability is likely from the reported measurements.

-Band Size- -ES/FR/BE- -EU (Standard EN 13402)- -UK and US- -NZ, AU-
-XXS -75 -60 -28 -6
-XS -80 -65 -30 -8
-S -85 -70 -32 -10
-M -90 -75 -34 -12
-L -95 -80 -36 -14
-XL -100 -85 -38 -16
-XXL -105 -90 -40 -18
-3XL -110 -95 -42 -20
-4XL -115 -100 -44 -22
-5XL -120 -105 -46 -24

Cup size

The scale of the cup can be determined using the bust and band size difference. The below table has bust and band differences with cup sizes measurements of the US, UK, and Australia.

Bust/band difference in inches US cup size UK/AU cup size
<1 AA AA
1 A A
2 B B
3 C C
4 D D
5 E or DD DD
6 F or DDD E
7 G or DDDD F
8 H FF
9 I G
10 J GG
11 K H
12 L HH
13 M J
14 N JJ


Bust/band difference in cm Continental Europe cup size
10-11 AA
12-13 A
14-15 B
16-17 C
18-19 D
20-21 E
22-23 F
24-25 G
26-27 H
28-29 I
30-31 J
32-33 K
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