Find your real bra size in seconds. Use our accurate 2026 bra size calculator to measure bust & underbust, get cup, band, sister sizes and fit tips.

During the bra manufacturing process the same exact bra cup may be paired with different band lengths to create multiple bra sizes. For example, the same exact cup is used to make 38A, 36B, 34C, 32D, …

Believe it or not, the average bra size in the USA is 34DD. Surprised by that survey? Yeah, me too. But that somewhat misleading figure does underscore the confusion around bra sizes. Read on to make …

Unsure about your bra size or confused about sister sizes? Our ultimate bra size guide will show you how to measure and find your perfect fit. Discover the HSIA bra size chart and sister sizes, and use …

Find the bra size that fits you best with these quick and easy international bra size conversion charts. Plus, shop your size with our BraFinder™! Learn more.

Breast size and bra size chart with sample images There is some confusion around about how to name the sizes of a woman’s breasts and bras, since different measurements and sizes are used in …

To determine your band size, measure directly under the bust in inches. Band sizes typically begin at 30 and increase in increments of 2 (e.g., 30, 32, 34, 36) which gives you an idea of Bra Cup size.

Oct 25, 2025 · Free bra size calculator with UK and US methods. Measure band and cup size accurately, convert between sizing systems, and find your perfect fit instantly!

Our calculator is 80% accurate within one size. If you're struggling with slipping straps, spillage, or the bra band isn't staying down, it's likely time for a new size—and we're confident it will make all the …

All of these bras here are sister sizes of each other - the cup is exactly the same, but each has a slightly larger band than the next. Want a quick reminder of which way to go? Choose which sizing problem …