Bra Size Chart

Use this page as a reference for common band-number and cup-label relationships. Bra sizing is not globally standardized, so a chart should support—not replace—the manufacturer's current chart and an actual fit check.

Common band-number conversions

UK / US / CAEUFrance / SpainAustralia / NZ
2860758
30658010
32708510
34759012
36809514
388510016
409010518
429511020
4410011522
4610512024
4811012526

Band references above follow the common conversion pattern shown in Triumph's international size chart. Brand charts can differ, especially outside the standard ranges.

Cup-label reference

UKUSEUAustralia / NZ
AAAAAAAA
AAAA
BBBB
CCCC
DDDD
DDDDEDD
EDDDFE
FGGF
FFHHG
GIIH

Cup naming can vary by brand. The table is a reference mapping, not a promise that every manufacturer uses the same sequence.

How to use a bra size chart

  1. Measure your underbust and bust using the same unit.
  2. Use the manufacturer's band and cup chart for the exact bra you are considering.
  3. Use an international converter when shopping across sizing systems.
  4. After trying the bra, check the band, cups, straps and centre gore rather than relying only on the label.

India and Canada

Canada commonly uses US-style band and cup labels in reference charts. Many Indian lingerie brands use UK-style numbered bands and familiar cup letters, but Indian brand charts are not identical to one another. For India-specific shopping, check the retailer's current chart.

Remember: A chart gives a starting reference. It cannot account for every body shape, cup construction, wire width or fabric.

Want your personal estimate?

Use your measurements rather than choosing a size from the chart alone.

Use the BraFitly Calculator