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US Bra Size to French Conversion Guide

Translate your US size into the French system, which adds 15 to the EU band and streamlines cup letters. Follow the chart, step-by-step flow, and brand notes to shop Parisian labels with ease.

View the conversion chartCheck sister sizes

Covers US bands 28–52 and French bands 75–135 with cups AA through K.

French bands add fifteen

Take the EU band and add 15: US 34 (EU 75) becomes FR 90, US 36 becomes FR 95, and so on.

Cups mirror the EU alphabet

US DD converts to FR E, US DDD/F becomes FR F, then letters continue upward G, H, J.

Expect bilingual hang tags

French brands often print FR, EU, and international columns—use the FR column when swapping from a US size.

US to French band and cup mapping

Find the French band (EU + 15) and the aligned cup letter for your US size.

US labelFR labelNotes
28AA85AASwitch to French band 85 while simplifying the cup to AA; US 28AA shares the same volume.
28A85ASwitch to French band 85 while simplifying the cup to A; US 28A shares the same volume.
28B85BSwitch to French band 85 while simplifying the cup to B; US 28B shares the same volume.
28C85CSwitch to French band 85 while simplifying the cup to C; US 28C shares the same volume.
28D85DSwitch to French band 85 while simplifying the cup to D; US 28D shares the same volume.
28DD85ESwitch to French band 85 while simplifying the cup to E; US 28DD shares the same volume.
28DDD85FSwitch to French band 85 while simplifying the cup to F; US 28DDD shares the same volume.
28G85GSwitch to French band 85 while simplifying the cup to G; US 28G shares the same volume.
28H85HSwitch to French band 85 while simplifying the cup to H; US 28H shares the same volume.
28I85ISwitch to French band 85 while simplifying the cup to I; US 28I shares the same volume.
28J85JSwitch to French band 85 while simplifying the cup to J; US 28J shares the same volume.
28K85KSwitch to French band 85 while simplifying the cup to K; US 28K shares the same volume.
30AA90AASwitch to French band 90 while simplifying the cup to AA; US 30AA shares the same volume.
30A90ASwitch to French band 90 while simplifying the cup to A; US 30A shares the same volume.
30B90BSwitch to French band 90 while simplifying the cup to B; US 30B shares the same volume.
30C90CSwitch to French band 90 while simplifying the cup to C; US 30C shares the same volume.
30D90DSwitch to French band 90 while simplifying the cup to D; US 30D shares the same volume.
30DD90ESwitch to French band 90 while simplifying the cup to E; US 30DD shares the same volume.
30DDD90FSwitch to French band 90 while simplifying the cup to F; US 30DDD shares the same volume.
30G90GSwitch to French band 90 while simplifying the cup to G; US 30G shares the same volume.
30H90HSwitch to French band 90 while simplifying the cup to H; US 30H shares the same volume.
30I90ISwitch to French band 90 while simplifying the cup to I; US 30I shares the same volume.
30J90JSwitch to French band 90 while simplifying the cup to J; US 30J shares the same volume.
30K90KSwitch to French band 90 while simplifying the cup to K; US 30K shares the same volume.

Convert your size in four steps

  1. Confirm your US baseline Measure your snug underbust and bust or start from a trusted US size.
  2. Add 15 to find the French band Use the chart to jump from your US band to the corresponding FR number and adjust the cup letter.
  3. Test neighbouring bands If the FR band feels different, slide to the next band and adjust the cup using sister sizes.
  4. Verify before wearing Try French styles or read local reviews—lace-forward brands can feel snugger than US basics.

Worked conversion examples

US 30DD -> FR 80E

US 30DD adds 15 to the band (65→80) and maps DD to French E.

US 32F -> FR 85G

US 32F becomes FR 85G—band increases, cup letter shifts one step.

US 34DD -> FR 90E

US 34DD converts to FR 90E, a common size for French balconette bras.

US 36G -> FR 95H

US 36G tracks to FR 95H for full-bust French lingerie.

Brand sizing cheat sheet

Keep these retailer notes in mind when switching between US and French labels.

US-based retailers

  • Nordstrom
  • Bloomingdale's
  • Bare Necessities
  • Saks Fifth Avenue

Convert before ordering French brands sold through US department stores or marketplaces.

French heritage labels

  • Chantelle
  • Aubade
  • Louisa Bracq
  • Simone Perele

Chantelle, Aubade, and Louisa Bracq print FR sizes first, with EU and international equivalents listed beneath.

Global marketplaces

  • Galeries Lafayette
  • La Redoute
  • Amazon FR
  • Etam

Sites like Galeries Lafayette, La Redoute, and Amazon FR ship worldwide with FR sizing on the tag.

Fit tips after converting

  • Remember that FR bands can feel firmer because they are based on a tighter centimetre measurement.
  • Many French styles favour lace or mesh—check fabric notes to anticipate stretch compared with US bras.
  • Keep a record of both FR and EU numbers so you can cross-check multi-column size charts.

Helpful tools

Interactive bra size calculator

Measure in inches or centimetres and generate both local and international sizes in one place.

Open

International bra size guide

Compare regional systems side by side and review conversion advice for cross-border shopping.

Open

Sister size navigator

Adjust bands tighter or looser while holding cup volume steady after you convert.

Open

US to French conversion FAQ

How do French band numbers relate to US sizes?

French bands are 15 points higher than the EU label. A US 34 (EU 75) converts to FR 90.

What happens to US double-letter cups in France?

France mirrors the EU lettering, so DD maps to E and DDD/F maps to F before moving to G, H, and beyond.

Do French brands run smaller or larger than US ones?

Most French brands run true to their EU/FR charts. Start with the conversion and use sister sizes only if the band feels off.

Where can I buy French-sized bras?

Look for direct-to-consumer sites like Chantelle or Aubade, plus French department stores that ship internationally.