Lane Bryant uses standard US bra sizing with extended size ranges for plus-size women. Band sizes range from 32-56 and cup sizes from A to K. The band size is determined by your underbust measurement (rounded to the nearest even number), while the cup size is calculated by the difference between your bust and underbust measurements. Each 1-inch difference corresponds to one cup size up.

Cacique is Lane Bryant's exclusive intimates brand, and they use the same sizing system. Cacique bras are designed specifically for plus-size women with sizes ranging from 32C to 56H. If you know your Lane Bryant bra size, it will be the same for Cacique lingerie. Cacique offers specialized styles like balconette, full coverage, and sports bras all in their extended size range.

Sister sizes are bra sizes that have the same cup volume but different band sizes. For example, 38D, 36DD, and 40C are sister sizes. If your exact size isn't available or you prefer a different fit, you can try a sister size: go down a band size and up a cup size for a tighter band, or up a band size and down a cup size for a looser band. This is especially helpful when shopping sales or finding discontinued styles.

It's recommended to measure your bra size every 6-12 months, or whenever you experience weight changes (gain or loss of 10+ pounds), pregnancy or breastfeeding, hormonal changes, or notice your current bras aren't fitting properly. Studies show that up to 80% of women wear the wrong bra size, so regular measuring ensures optimal comfort and support.

Bra sizing can vary between brands due to different sizing standards, manufacturing processes, and target demographics. Lane Bryant/Cacique bras are specifically designed for plus-size women with fuller figures, which may result in a different fit compared to brands designed for smaller frames. European brands also use different sizing systems (EU sizing uses centimeters and different cup progressions).

Lane Bryant and Cacique offer an extensive range of cup sizes from A to K (including DD, DDD/F, G, H, I, J, and K). This wide range ensures that women with fuller busts can find their perfect fit with proper support and comfort. Not all styles are available in all sizes, so check specific product pages for size availability.

A properly fitting bra should have a band that sits level around your body without riding up. The cups should fully contain your breast tissue without spillage or gaping. The center gore (the piece between the cups) should lay flat against your sternum. Straps should stay in place without digging in or sliding off your shoulders. You should feel supported and comfortable throughout the day.

This calculator provides your standard bra size, which is a good starting point. However, for maternity and nursing bras, you may need to size up in the cup (1-2 cup sizes) and potentially the band as your body changes during and after pregnancy. Many women find their band size increases during pregnancy and their cup size fluctuates during breastfeeding. Remeasure regularly during this time.