What do the numbers and letters on a bra mean?

{Video Transcription}

So you want to buy a bra, but you're like, okay, what do the numbers and the letters mean? How does that translate to my measurements? Don't worry, I'm going to explain it all to you. So, for example, let's say we're looking at this bra here, and we're going to look at the tag. For now, we're just going to look at the U.S sizing. So, the U.S. sizing for this bra says 36K. Okay, so what does the 36 mean, and what does the K mean? 

The 36 refers to your underbust measurement in inches. So if I were to measure under here, go all the way around, I would actually get, 34. At Lingerie DEBra we add two inches to the underbust measurement because we found that this is a more accurate translation from measurement size to actual bra size. 

Cup size is represented by the letter on your bra. For the K, I would take my measurement here, and I get 44. So if I'm going to count from what my underbust measurement was, which was 36 because we added 2 to 34, so then it's going to go b c d dd f G H I J and K and that is how we determine what the letter is of your bra size.