Lingerie Size Calculator: Bra, Brief, Bodysuit
This lingerie size calculator handles multi-piece sizing in one workflow — bra, brief, and bodysuit fit together, and most calculators only do one. Enter your underbust, bust, waist, and hip; the tool returns coordinated sizes for matching sets. Works for premium intimates, bridal lingerie, and bodysuit-heavy collections. Use the calculator below to get your exact fit in 30 seconds.
How it works
Measure yourself
Take your bust, waist, and hips with a soft tape. See the full measurement guide.
Enter the numbers
Type your measurements into the calculator above. Pick inches or cm — the tool converts both ways.
Get your size
Match the result against the brand's chart and order with confidence.
Women's tops & dresses — bust-driven sizing
| Size | US | UK | EU | Bust |
|---|---|---|---|---|
| XS | 0–2 | 4–6 | 32–34 | 31–33" |
| S | 4–6 | 8–10 | 36–38 | 33–35" |
| M | 8–10 | 12–14 | 40–42 | 35–37" |
| L | 12–14 | 16–18 | 44–46 | 38–40" |
| XL | 16–18 | 20–22 | 48–50 | 41–43" |
| XXL | 20–22 | 24–26 | 52–54 | 44–46" |
Frequently Asked Questions
Why do bodysuits fit differently from bra+brief sets?
Bodysuits combine bust and torso length in one piece — your bust may fit but the torso pulls if you're tall, or sags if you're petite. Pick a brand that publishes torso length spec.
Should I order matching set sizes the same?
Usually yes — designer matching sets are sized to fit the same body. If your bust and hip put you in different sizes, order separately and size each piece individually.
How does shapewear differ from lingerie sizing?
Shapewear runs 1 size smaller because it's compression-fit. Use the shapewear-specific calculator for those.
Is the calculator data stored anywhere?
No. The calculator runs in your browser; no measurements are saved or transmitted to a server.
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