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US Bra Size Chart

The US bra size chart uses inches for band and bust measurements to help you find a comfortable fit.

BAND MEASUREMENT
<26"26-28"28-30"30-32"32-34"34-36"36-38"38-40"
BUST MEASUREMENT26"26AA
27"26A
28"26B28AA
29"26C28A
30"26D28B30AA
31"26DD28C30A
32"26DDD28D30B32AA
33"26F28DD30C32A
34"26G28DDD30D32B34AA
35"26H28F30DD32C34A
36"26I28G30DDD32D34B36AA
37"26J28H30F32DD34C36A
38"26K28I30G32DDD34D36B38AA
39"26L28J30H32F34DD36C38A
40"26M28K30I32G34DDD36D38B40AA
41"26N28L30J32H34F36DD38C40A
42"26O28M30K32I34G36DDD38D40B
43"28N30L32J34H36F38DD40C
44"28O30M32K34I36G38DDD40D
45"30N32L34J36H38F40DD
46"30O32M34K36I38G40DDD
47"32N34L36J38H40F
48"32O34M36K38I40G
49"34N36L38J40H
50"34O36M38K40I
51"36N38L40J
52"36O38M40K
53"38N40L
54"38O40M
55"40N
56"40O

Bra Size Chart US

Use the following image as a simple bra size chart to determine your bra size. It’s easier to understand.

US Bra Size Chart

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US Bra Size Chart FAQ

1. How do I use this chart to find my exact bra size?

To find your exact size using the US Bra Size Chart:

  1. Measure Your Band Size: Wrap a measuring tape snugly around your ribcage, right under your bust. Round this measurement to the nearest inch. This is your band size.
  2. Measure Your Bust Size: Measure around the fullest part of your bust, keeping the tape level. Round this measurement to the nearest inch.
  3. Refer to the Chart: Find your band size in the top row and your bust size in the left column. Where these measurements intersect on the chart is your bra size.

Example: If your band measurement is 34 inches and your bust measurement is 37 inches, look for these numbers in the chart to find your size, which should be 34C.

2. What is a 'Sister Size,' and how can I determine it using this chart?

A sister size is a bra size that has a different band and cup size but offers a similar fit. For example, if you're a 34C, you might also find that a 32D or 36B fits well, depending on the brand.

To find sister sizes:

  • Size Down in Band, Size Up in Cup: If your original size is 34C, try a 32D.
  • Size Up in Band, Size Down in Cup: If your original size is 34C, try a 36B.

Using this chart, look at the row or column that aligns with your current band and cup size to see other sizes with similar measurements.

3. Which popular brands use the US bra sizing system?

Many popular brands in the United States use the US bra sizing system, including:

  • Victoria’s Secret: Known for a wide range of styles and sizes.
  • Aerie: Popular for body-positive campaigns and diverse size options.
  • ThirdLove: Offers half sizes and a variety of fit options.
  • Warner’s: Specializes in comfortable, everyday bras.
  • Playtex: Known for offering extended sizes, especially for fuller busts.
4. Why does my bra size vary between brands?

Even though the US sizing system provides a standardized approach, sizes can vary between brands due to different design approaches, materials, and fit philosophies. Some brands prioritize comfort and flexibility, while others focus on fashion and structure, which can affect fit.

To ensure the best fit, try your size in several brands, or consult a brand-specific size guide if available. Using the US sizing system as a starting point will help, but remember that slight variations are normal.

5. What are some important things to consider before choosing a bra size based on this chart?

Body Changes: Weight fluctuations, hormonal changes, pregnancy, or age can impact your bra size. Measure yourself regularly to ensure you’re selecting the correct size.

Brand-Specific Fit: Some brands may have unique fits. If you’re unsure, check customer reviews or try on multiple sizes when possible.

Fit Across Styles: Not all styles fit the same way. For example, a sports bra might feel snugger than a balconette in the same size. Check the brand’s fitting notes for each style.

Measure Correctly: Make sure you’re standing straight and not pulling the tape too tight or leaving it too loose when measuring.