From Bra Size
to Shopping Size.
Shopping for a top or dress and only know your bra size? Enter your band and cup to get an estimated US dress/top size handy for a quick guess before you check a brand's own size chart.
- ✓ Results in under a minute, no sign-up needed
- ✓ Rough US size guide, not brand-exact
- ✓ Great for a quick pre-shopping estimate
Estimate your top/dress size
Select your bra size.
Why This Is Only an Estimate
Dress and top sizing is based on overall body measurements (bust, waist, hip), while bra size only reflects your chest so two people with the same bra size can wear very different dress sizes depending on their waist and hip proportions. Use this as a rough starting point, then check the specific retailer's size chart, since sizing varies significantly between brands.
General Band/Cup to US Size Guide
| Band + Cup | Approx. US Size |
|---|---|
| 32A–34A | 0–2 |
| 34B–36B | 4–6 |
| 36C–38C | 8–10 |
| 38D–40D | 12–14 |
| 40DD–42DD | 16–18 |
| 44D and above | 20+ |
Frequently Asked Questions
Is this accurate enough to buy without trying on?
For basics like t-shirts, usually close enough. For fitted dresses or structured tops, always check the brand's own chart.
Why did I get a wider size range than expected?
Dress size depends on more than bust waist and hip proportions shift the estimate, so the range accounts for that variation.
Does this work for petite or plus ranges?
It's a general guide petite and plus lines often have their own separate size charts, so check those directly when available.