Bra Size Converter
Shopping for bras internationally? This converter helps you find your correct size across different regions. Enter your band and cup size to see equivalents in US, EU, and UK sizing, plus discover sister sizes that might also fit you well.
How We Calculate This
Band conversions: EU = (US - 30) × 2.5 + 60. Cup sizes follow standard international equivalency charts. Sister sizes maintain the same cup volume across adjacent band sizes.
Frequently Asked Questions
What are sister sizes?
Sister sizes have the same cup volume but different band sizes. If your regular size doesn't fit perfectly, try a sister size: one band size up with one cup size down, or vice versa.
Why are EU bra sizes different?
EU uses centimeters for band size instead of inches. A US 34 equals EU 75. Cup sizing is similar but uses continuous letters (E, F, G) instead of DD, DDD.
How do I measure my bra size?
Measure your underbust for band size and the fullest part of your bust for cup size. The difference between these two measurements determines your cup size.
Why do UK and US cup sizes differ?
After D cup, the systems diverge. US uses DD, DDD, then G. UK uses DD, E, F, FF, G, GG. The same physical cup might have different labels.
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