Apex Conversion

👙 FR Bra Size to EU Bra Size Converter

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

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Result

75C

90C FR = 75C EU

FR Bra Size to EU Bra Size Conversion Table

FR SizeEU Size
80A FR65A EU
80B FR65B EU
80C FR65C EU
80D FR65D EU
80DD FR65E EU
80E FR65F EU
85A FR70A EU
85B FR70B EU
85C FR70C EU
85D FR70D EU
85DD FR70E EU
85E FR70F EU
90A FR75A EU
90B FR75B EU
90C FR75C EU
90D FR75D EU
90DD FR75E EU
90E FR75F EU
95A FR80A EU
95B FR80B EU
95C FR80C EU
95D FR80D EU
95DD FR80E EU
95E FR80F EU

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 FR Bra Size to EU Bra Size Conversions

The FR and EU 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 FR Bra Size values pre-converted to EU Bra Size, the conversion formula, and frequently asked questions. All values use internationally recognized conversion standards.

Frequently Asked Questions

How do I convert FR Bra Size to EU 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 EU Bra Size are in 1 FR Bra Size?

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

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

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

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

Use EU sizing when shopping brands that label their products in the EU 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

EU Bra Size → FR 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.