Bra Size Chart - Complete Guide for All Countries

We created this bra size chart to help you compare sizes across different countries in one place. You will find clear tables showing how band and cup sizes match across the US, UK, EU, France, Australia, India, and Japan. Use these charts whenever you need to check your size in another region and find the closest match for a comfortable fit.

Use our Bra Size Calculator to get the right band and cup size without any confusion.

Unified Bra Size Chart (Band + Bust in Inches and CM)

This bra size chart combines band measurements, bust ranges, and cup sizes in one place. It helps you check your size in both inches and centimeters, from cup A to cup K. Use this master chart to understand your band and bust measurements. 

Bra Size Chart in Inches

Band Size Bust for A Bust for B Bust for C Bust for D Bust for DD/E Bust for F Bust for G Bust for H Bust for I Bust for J Bust for K
28 29 in 30 in 31 in 32 in 33 in 34 in 35 in 36 in 37 in 38 in 39 in
30 31 in 32 in 33 in 34 in 35 in 36 in 37 in 38 in 39 in 40 in 41 in
32 33 in 34 in 35 in 36 in 37 in 38 in 39 in 40 in 41 in 42 in 43 in
34 35 in 36 in 37 in 38 in 39 in 40 in 41 in 42 in 43 in 44 in 45 in
36 37 in 38 in 39 in 40 in 41 in 42 in 43 in 44 in 45 in 46 in 47 in
38 39 in 40 in 41 in 42 in 43 in 44 in 45 in 46 in 47 in 48 in 49 in
40 41 in 42 in 43 in 44 in 45 in 46 in 47 in 48 in 49 in 50 in 51 in
42 43 in 44 in 45 in 46 in 47 in 48 in 49 in 50 in 51 in 52 in 53 in
44 45 in 46 in 47 in 48 in 49 in 50 in 51 in 52 in 53 in 54 in 55 in

Bra Size Chart in CM

Band Size (CM) Bust A Bust B Bust C Bust D Bust DD/E Bust F Bust G Bust H Bust I Bust J Bust K
70 72.5 cm 75 cm 77.5 cm 80 cm 82.5 cm 85 cm 87.5 cm 90 cm 92.5 cm 95 cm 97.5 cm
75 77.5 cm 80 cm 82.5 cm 85 cm 87.5 cm 90 cm 92.5 cm 95 cm 97.5 cm 100 cm 102.5 cm
80 82.5 cm 85 cm 87.5 cm 90 cm 92.5 cm 95 cm 97.5 cm 100 cm 102.5 cm 105 cm 107.5 cm
85 87.5 cm 90 cm 92.5 cm 95 cm 97.5 cm 100 cm 102.5 cm 105 cm 107.5 cm 110 cm 112.5 cm
90 92.5 cm 95 cm 97.5 cm 100 cm 102.5 cm 105 cm 107.5 cm 110 cm 112.5 cm 115 cm 117.5 cm
95 97.5 cm 100 cm 102.5 cm 105 cm 107.5 cm 110 cm 112.5 cm 115 cm 117.5 cm 120 cm 122.5 cm
100 102.5 cm 105 cm 107.5 cm 110 cm 112.5 cm 115 cm 117.5 cm 120 cm 122.5 cm 125 cm 127.5 cm

Bra Size Chart US

The US system uses inches for both band and bust measurements. Cup sizes increase by 1 inch difference between bust and band.

US Cup Progression:

A, B, C, D, DD, DDD, G, H, I, J, K

Bust-Band Difference Cup Size
1 inch A
2 inches B
3 inches C
4 inches D
5 inches DD
6 inches DDD / F
7 inches G
8 inches H
9 inches I
10 inches J
11 inches K

Bra Size Chart UK

The UK uses the same band system as the US, but follows a different cup sequence.

UK Cup Progression:

A, B, C, D, DD, E, F, FF, G, GG, H, HH, J, JJ, K

Difference Cup Size
1 inch A
2 inches B
3 inches C
4 inches D
5 inches DD
6 inches E
7 inches F
8 inches FF
9 inches G
10 inches GG
11 inches H

Bra Size Chart India

India follows the UK bra sizing system, so the cup progression and band measurements are the same.

Indian Cup Progression:

A, B, C, D, DD, E, F, FF, G

Difference Cup Size
1 inch A
2 inches B
3 inches C
4 inches D
5 inches DD
6 inches E
7 inches F

International Bra Size Converter

This bra size chart (table) helps you compare one bra size across different countries. Band numbers change by region, but the cup letter usually stays the same. Use this bra size chart when buying bras from the US, UK, EU, FR, AU, JP, IT, and India sizing systems.

Conversion Table (Band + Cup Together)

US UK EU FR IT AU JP India
30A 30A 65A 80A 1A 8A A65 30A
30B 30B 65B 80B 1B 8B B65 30B
30C 30C 65C 80C 1C 8C C65 30C
32A 32A 70A 85A 2A 10A A70 32A
32B 32B 70B 85B 2B 10B B70 32B
32C 32C 70C 85C 2C 10C C70 32C
34A 34A 75A 90A 3A 12A A75 34A
34B 34B 75B 90B 3B 12B B75 34B
34C 34C 75C 90C 3C 12C C75 34C
36A 36A 80A 95A 4A 14A A80 36A
36B 36B 80B 95B 4B 14B B80 36B
36C 36C 80C 95C 4C 14C C80 36C
38A 38A 85A 100A 5A 16A A85 38A
38B 38B 85B 100B 5B 16B B85 38B
38C 38C 85C 100C 5C 16C C85 38C
40C 40C 90C 105C 6C 18C C90 40C
40D 40D 90D 105D 6D 18D D90 40D
40DD 40DD 90E 105E 6E 18DD E90 40DD

How to Read This Table

To use this converter:

  1. Pick your current bra size in US, UK, or India (example: 34C).
  2. Move across the row to find your matching size in EU, FR, AU, JP, and IT.
  3. The cup letter stays the same, but the band number varies by country.

Example: If you wear 34C (US/UK/India):

  • EU = 75C
  • France = 90C
  • Australia = 12C
  • Japan = C75
  • Italy = 3C

If you want to measure your bra size correctly, read the complete guide.

Sister Bra Size Chart

Sister sizes help when your bra feels a little tight or loose. The cup volume stays the same, but the band changes. If the band goes down, the cup letter goes up. If the band goes up, the cup letter goes down.

Example: 34C sister sizes are 32D and 36B.

Sister Size Table (Most Common Sizes)

Main Size One Band Down Same Cup Volume One Band Up
30B 28C 30B 32A
30C 28D 30C 32B
32A 30B 32A 34AA
32B 30C 32B 34A
32C 30D 32C 34B
34A 32B 34A 36AA
34B 32C 34B 36A
34C 32D 34C 36B
34D 32DD/E 34D 36C
36A 34B 36A 38AA
36B 34C 36B 38A
36C 34D 36C 38B
36D 34DD/E 36D 38C
38B 36C 38B 40A
38C 36D 38C 40B
38D 36DD/E 38D 40C

How to Use Sister Sizes

If your bra feels:

  • Too tight → Go one band up and one cup down
  • Too loose → Go one band down and one cup up

Examples:

  • 34C feels tight → try 36B
  • 34C feels loose → try 32D

Ready to Check Your Exact Size?

Use our Bra Size Calculator to get your correct band and cup measurements in seconds. It is quick, accurate, and works for all size charts.

Frequently Asked Questions

How do I convert bust size to cm?

To convert bust size from inches to cm, wrap the measuring tape around the fullest part of your bust and note the measurement in inches or cm. If you measure in inches, multiply your number by 2.54 to get the value in cm. Example: 36 inches × 2.54 = 91.44 cm.

How do I read a US to UK bra size chart?

US and UK band sizes are the same, but cup letters change after D. Example:

US DD = UK E
US DDD/F = UK F

Using a US-to-UK bra size chart helps you match the right cup when switching brands or shopping online.

What is the correct way to take a bra size measurement at home?

For accurate bra size measurement:

Measure your band by wrapping the tape under your bust.
Measure your bust at the fullest part.
Subtract band from bust to find your cup size.

This gives you the bra size in the format band + cup, such as 34C or 36D.