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Bra Sister Size

Learn all about bra sister sizing - you will be surprised :)
 
  Bra Sister Size
 
Did you know that the bra cup size is relative to the band size? This means that the bra's cup volume is decreasing when the band size is increasing (and that the bra's cup volume is increasing when the band size is decreasing). Because of this, more cup sizes can actually fit your breasts (if you try different bras with different band size). Bra sizes with the same cup volume (but different cup size letter) are called "sister sizes".

Bra sizes with same cup volume (sister sizes) are marked with the same color (placed in the same row) in the chart below. So, if you i.e. are using 34C, a 32D or a 36B may also fit!

Note: Experts mean that many women use too large band size and too small cup size (see Wrong Bra Size Signs and Symptoms). So maybe you should use the sister size chart below and find an alternative bra size.
 

Bra Sister Size Chart

 
 
30 32 34 36 38 40 42 44
30AA              
30 A 32AA            
30B 32A 34AA          
30C 32B 34A 36AA        
30D 32C 34B 36A 38AA      
30DD 32D 34C 36B 38A 40AA    
30DDD/E 32DD 34D 36C 38B 40A 42AA  
30F 32DDD/E 34DD 36D 38C 40B 42A 44AA
30G 32F 34DDD/E 36DD 38D 40C 42B 44A
30H 32G 34F 36DDD/E 38DD 40D 42C 44B
30I 32H 34G 36F 38DDD/E 40DD 42D 44C
30J 32I 34H 36G 38F 40DDD/E 42DD 44D
  32J 34I 36H 38G 40F 42DDD/E 44DD
    34J 36I 38H 40G 42F 44DDD/E
      36J 38I 40H 42G 44F
        38J 40I 42H 44G
          40J 42I 44H
            42J 44I
              44J
               
 
 

What is YOUR experience with bra sister sizing?

Share your own experiences on bra sister sizing. Does it work for you and your burst? Thanks!
 
 
   
 
 
 
Bra Size - We Care
 
All resources from BraSize.com:
Average Bra Size | Band Size | Bra Fitting | Bra Size Calculator | Bra Size Converter (US, UK, EU, AU, FR, IT) | Breast Cancer (We Care!) | Cup Size | Determine Bra Size | Find Bra Size (Gift) | Measure Bra Size | Sister Size | Tips&Tricks | Wrong Bra Size
 
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