Swimwear Size Calculator
Estimate a starting size for bra-sized swimwear and assess one-piece fit considerations from body measurements.
How the swimwear starting point is calculated
Bra-sized swimwear uses the same measurement-based band and cup starting relationship as the main calculator. One-piece guidance is handled separately because torso length and garment construction can make a simple bra-size mapping unreliable.
- Bra-sized piece: underbust establishes the band and bust minus underbust establishes the cup position.
- Torso: the shoulder-to-crotch loop is recorded as an additional fit reference for one-piece construction.
- One-piece result: the tool does not force a universal numeric size; it returns brand-dependent guidance where the available logic cannot support a reliable mapping.
Swimwear fabric, stretch, wet fit, torso proportions, and manufacturer sizing can affect the final choice. Check the current garment chart before purchase.
Frequently Asked Questions
Answers about sizing methods, measurements, and fit considerations.
Should swimwear fit tighter than an everyday bra?
A secure dry fit is important because swimwear fit can change with fabric construction, stretch, movement, and wet conditions. Check the garment's current size chart and fit guidance.
Sizing References
- Textile Research Journal: Hydrodynamic performance and wet stretch of elastane-nylon swimwear blends