Bikini Size Calculator

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Everyday Life

Find your bikini or swimwear size from your bust, waist, and hip measurements.

Formula

Top size from bust; Bottom size from hips
  • US women's sizes: XS (≤33 in bust), S (34-35), M (36-37), L (38-39), XL (40-42), XXL (43+).
  • Bottom sizing follows hip measurement.
  • Sizes vary by brand — always check brand-specific size charts.

36-28-38 measurements

Inputs
  • Bust / Chest: 36 in
  • Waist: 28 in
  • Hips: 38 in

Bust 36 in → Top size M. Hips 38 in → Bottom size M. Hip-waist diff 10 → Hourglass figure.

Frequently asked questions

How do I measure for a bikini?
Measure bust at fullest point, waist at narrowest, hips at fullest. Wear minimal clothing.
What if my top and bottom are different sizes?
Many brands sell tops and bottoms separately — common for mix-and-match sizing.
How do EU/UK sizes compare?
EU adds roughly 30 to US numeric sizes. UK is generally similar to US but varies.
Should I size up?
For active swimming, a snug fit is best. For lounging, one size up may be more comfortable.