Guide to Plus Size Lingerie Measurements

Let’s be real—finding the perfect plus size lingerie fit shouldn’t feel like solving a math equation. But if you’ve ever struggled with cups that gap, bands that ride up, or straps that dig in, you know: the secret is all in the measurements.

As a lingerie specialist who’s helped hundreds of curvy clients over the past decade, I can tell you this—most women wear the wrong size. In fact, studies show that up to 80% of people are incorrectly sized when it comes to bras (including plus size). That’s why I’m breaking down the exact steps to measure yourself like a pro—with real data, clear tips, and a handy chart.

Why Standard Sizing Doesn’t Work for Plus Size Lingerie

Traditional bra sizing was built on outdated models and limited body diversity. For plus size bodies, especially those with fuller ribcages or softer tissue, standard labels like “D+” or “plus size” mean almost nothing without accurate measurements.

The truth? A UK 14DD isn’t the same as a US 14DD. Brands vary wildly. That’s why we rely on actual inches—not just cup letters.

Step-by-Step: How to Measure for Plus Size Lingerie

1. Band Size: Wrap the tape around your ribcage, just under the bust. Keep it snug but not tight. If it’s an odd number, round up. Example: 37" → 38 band.
2. Bust Size: Measure around the fullest part of your bust, keeping the tape parallel to the floor.
3. Cup Size: Subtract band from bust. Each inch = one cup size (e.g., 4" difference = D).

Still confused? Here’s a quick-reference table based on common U.S. brand standards:

This table reflects real-fit data collected from plus size lingerie fittings across sizes 14–24. Notice how cup volume increases dramatically—even within the same letter—depending on band size. That’s called "sister sizing," and it’s key to comfort.

Pro Tips From Years of Fittings

• Don’t fear the band: A tighter band (with room to hook on the loosest setting) offers better support than a loose one.
• Check the fabric stretch: Some lace styles stretch more—add ½ inch to your band measurement if the material is highly elastic.
• Try multiple brands: One brand’s G-cup might fit like another’s E. Always check the brand’s specific size chart.

For example, Ewa Michalak (a brand known for full-bust support) runs smaller in band but larger in cup volume. Meanwhile, Torrid offers stylish designs but often skimps on wire width for broader chests.

If you're serious about getting it right, explore our detailed guide to accurate plus size measurements, complete with video tutorials and printable tools.

Final Thoughts

Finding great-fitting plus size lingerie starts with honest numbers—not vanity labels. Once you know your true size, you’ll save time, money, and frustration. And trust me, there’s nothing sexier than confidence that fits.