Note:
Why are most bra size chart conversion tables wrong? Bra sizes are often misunderstood and the tables are often created with an attempt to make all the sizing conventions to fit neatly together. But they don't fit, as shown in the precise charts. Excessive tweaking and forceful "matching" between charts and conventions create oversimplified and inaccurate information. This article is different by showing the actual relationship between size charts.
- UK and US are based on inches. The rest on centimeters.
- European (EU) and International (Int) size conventions are identical.
- Australian (AU) and New Zealander (NZ) conventions are identical.
- French (FR), Belgian (BE) and Spanish (ES) bra sizes are identical. Germany used the French sizing convention too but is nowadays primarily using EU/Int.
- UK and US cup sizes increase in steps of 1 inch (2.54 cm), JP in steps of 2.5, the rest in steps of 2 cm.
- UK and US have identical band sizes. Cup sizes increase for each inch but the size labeling differs after D-cup.
- Some US bra cups have several accepted labels. DD are also knows as E, DDD as F etc. This is why US cup sizes are often written as "F/DDD". The trend is that multi-Ds are dropped.
- Australian (AU) cup sizes are sometimes based on steps of 2.5 cm instead of 2 cm. Which convention is used depends on the preferences of the bra producer. Australian bra producers are moving towards using EU/Int sizing conventions.
- Italian (IT) bra producers have started to incorporate the EU/Int band sizing convention.
- Japanese (JP) convention is identical to South Korean (KO).