Size and Fit Finder
Get your bikini top and bottom size in seconds.
Swim sizes are not the same as your dress size, and most people are not the same size on top and bottom. This finder gives you both.
Enter a brand and size you already wear, your bra and pant size, or your measurements. Or come see us at 216 2nd St N in downtown St. Pete and we will fit you in person.
Provide Some Info
Measurements in inches.
Chest sets your shirt; waist sets your shorts.
International size converter
| NautiGirl | US | UK / AU | EU |
|---|---|---|---|
| XS | 0–2 | 4–6 | 32–34 |
| S | 2–4 | 8–10 | 36–38 |
| M | 4–6 | 12–14 | 40–42 |
| L | 6–8 | 16–18 | 44–46 |
| XL | 8–10 | 20–22 | 48–50 |
| XXL | 10–12 | 24–26 | 52–54 |
US column is our house (Kulani) grade; UK/AU and EU are approximate — check each product's chart.
Men's size chart
| NautiGirl | Chest (in) | Waist (in) |
|---|---|---|
| S | up to 37 | up to 32 |
| M | 38–40 | 33–34 |
| L | 41–44 | 35–38 |
| XL | 45–48 | 39–42 |
| XXL | 49+ | 43+ |
Chest sets your shirt; waist sets your shorts — the O'Neill-based grade the finder uses. Check each product's chart.
Frequently asked
How do I find my bikini size?
Enter your bust and hips in inches, or tell us a brand and size you already wear. The finder returns a recommended top and bottom size and flags when you should buy them as separates.
Why are my top and bottom sizes different?
Most people are not the same size on top and bottom — it is the #1 reason swimwear gets returned. Buying separates in the two recommended sizes gives a better fit than a single-size set.
What if I wear another brand like Triangl or Frankie's?
Switch to 'By brand', pick the brand and the size you wear there, and the finder translates it to your NautiGirl fit using that brand's sizing offset.