Answer (1 of 15): There is no one "average" bra size for a 21-year-old, as breast size and shape can vary greatly from person to person. However, according to a study published in the International Journal of Fashion Design, Technology, and Education, the most common bra size for women in the Uni
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Is 34D and 36B the same? - Quora
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Is 36B an average bra size for a 21-year-old? - Quora
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What is the average cup size of 21-year-old girls? - Quora
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Is a 36B bra size small, medium, or large? - Quora
I'm a 12-year-old AFAB person. My breasts are a size 36DD. Will
What is the average cup size of 21-year-old girls? - Quora
Is 36B an average bra size for a 21-year-old? - Quora