Apex Conversion

👙 EU Bra Size to FR Bra Size Converter

Free online tool to convert EU bra sizes to FR. Enter your band and cup size for an instant, accurate result — band and cup both converted.

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Result

90C

75C EU = 90C FR

EU Bra Size to FR Bra Size Conversion Table

EU SizeFR Size
65A EU80A FR
65B EU80B FR
65C EU80C FR
65D EU80D FR
65E EU80DD FR
65F EU80E FR
70A EU85A FR
70B EU85B FR
70C EU85C FR
70D EU85D FR
70E EU85DD FR
70F EU85E FR
75A EU90A FR
75B EU90B FR
75C EU90C FR
75D EU90D FR
75E EU90DD FR
75F EU90E FR
80A EU95A FR
80B EU95B FR
80C EU95C FR
80D EU95D FR
80E EU95DD FR
80F EU95E FR

Conversion Formula

Band conversion reference:
  US/UK:  28   30   32   34   36   38   40   42   44
  EU:     60   65   70   75   80   85   90   95  100
  FR:     75   80   85   90   95  100  105  110  115
  AU:      6    8   10   12   14   16   18   20   22
  JP/RU/KR: same as EU

Cup conversion — canonical index (12 sizes, index 0–11):
  US:     AA  A   B   C   D   DD  DDD  G   H   I   J   K
  UK/AU/FR: AA  A   B   C   D   DD   E   F  FF   G  GG   H
  EU/JP/RU/KR: AA  A   B   C   D   E   F   G   H   I   J   K

Common mistakes:
  US DDD ≠ UK DDD — US DDD = UK E
  US G ≠ EU G — US G = EU G (index 7 matches here)
  US DD = UK DD (same), but US DD = EU E (different)

About EU Bra Size to FR Bra Size Conversions

The EU and FR sizing systems use different band scales and diverge in cup notation above D cup. This converter handles the full size — band and cup — so you get an accurate result rather than just a band approximation.

This conversion uses a non-linear (reciprocal) relationship, so a simple multiplication factor does not apply. The formula section below explains the method, and the reference table shows common converted values.

This page includes a reference table of common EU Bra Size values pre-converted to FR Bra Size, the conversion formula, and frequently asked questions. All values use internationally recognized conversion standards.

Frequently Asked Questions

How do I convert EU Bra Size to FR Bra Size?

This conversion is non-linear. Use the calculator above for accurate results, or refer to the formula section on this page.

How many FR Bra Size are in 1 EU Bra Size?

The relationship between EU Bra Size and FR Bra Size is non-linear. Use the calculator above or the reference table on this page for specific values.

Is EU Bra Size larger or smaller than FR Bra Size?

The size relationship between EU Bra Size and FR Bra Size depends on the input value because this conversion is non-linear (reciprocal).

When would I use FR Bra Size instead of EU Bra Size?

Use FR sizing when shopping brands that label their products in the FR system — for example, European luxury brands, UK high street stores, or Japanese lingerie retailers. Always verify sizing with the brand's own chart, as fit can vary by style and manufacturer even within the same system.

Why doesn't my cup letter stay the same when converting between systems?

Cup letters are only consistent up to D cup. From DD upward, the US uses DD, DDD, G, H, I while UK and AU use DD, E, F, FF, G, GG, H, and EU uses E, F, G, H, I. This means US 34DDD = UK 34E = EU 75F. The band number also changes because each system uses a different scale — US in even inches, EU and JP in 5 cm increments, FR adds 15 to the EU number, and AU uses garment numbers.

What is the most common conversion mistake with international bra sizes?

The most common mistakes are (1) keeping the cup letter unchanged when it should change — US DDD is NOT UK DDD, it is UK E; and (2) only converting the band while ignoring the cup. Both band and cup must be converted for an accurate size. A second common mistake is confusing EU and FR sizing: FR sizes are EU + 15 in the band but use the same cup letters.

Related Bra Size Conversions

FR Bra Size → EU Bra SizeUnited States (US) → European (EU)European (EU) → United States (US)United States (US) → United Kingdom (UK)United Kingdom (UK) → United States (US)
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All conversion results are provided for general informational purposes only. Our formulas use internationally recognized conversion factors; however, rounding may affect precision. Do not rely on these results for professional, medical, legal, or engineering decisions without independent verification. Read our full disclaimer.