EU and US bra sizes use different band labels and can use different cup progressions. A US 32 band commonly corresponds to an EU 70 band, while a US 34 commonly corresponds to EU 75. Cup conversion must be checked separately because US brands do not all use the same sequence after D.
Direct answer
General EU to US bra size conversion
| EU band | US band | Approximate underbust range |
|---|---|---|
| 55 | 26 | 53-57 cm |
| 60 | 28 | 58-62 cm |
| 65 | 30 | 63-67 cm |
| 70 | 32 | 68-72 cm |
| 75 | 34 | 73-77 cm |
| 80 | 36 | 78-82 cm |
| 85 | 38 | 83-87 cm |
| 90 | 40 | 88-92 cm |
| 95 | 42 | 93-97 cm |
| 100 | 44 | 98-102 cm |
| 105 | 46 | 103-107 cm |
| 110 | 48 | 108-112 cm |
Regional conversion visual
Convert the Band and Cup as Separate Parts
This example shows a common conversion from US 34DD to EU 75E.
How EU Bra Band Sizes Work
EU bra bands commonly use numbers such as 65, 70, 75, 80, and 85. Each normal step changes by five centimeters.
The label does not represent the complete stretched length of the finished bra band. Elasticity and construction still affect fit.
How US Bra Band Sizes Work
US bands commonly use even numbers such as 30, 32, 34, 36, and 38.
Each regular step changes by two inches.
EU bands
Five-centimeter progression
Common labels include 65, 70, 75, 80, and 85.
US bands
Two-inch progression
Common labels include 30, 32, 34, 36, and 38.
Cup conversion
Must be checked separately
US and EU letters can diverge after D.
General US to EU Band Conversion Chart
| US band | EU band |
|---|---|
| 26 | 55 |
| 28 | 60 |
| 30 | 65 |
| 32 | 70 |
| 34 | 75 |
| 36 | 80 |
| 38 | 85 |
| 40 | 90 |
| 42 | 95 |
| 44 | 100 |
| 46 | 105 |
| 48 | 110 |
General EU and US Cup Conversion
| Common EU cup | Common US cup | Conversion note |
|---|---|---|
| AA | AA | Usually aligned |
| A | A | Usually aligned |
| B | B | Usually aligned |
| C | C | Usually aligned |
| D | D | Usually aligned |
| E | DD | Common conversion |
| F | DDD or F | US labels vary |
| G | G | Common in some US charts |
| H | H | Common in some US charts |
| I | I | Common in some US charts |
| J | J | Common in some US charts |
US cup lettering is not universal. Some US brands insert F after DDD, while others move directly to G.
Example: US 30D to EU
A US 30D commonly converts to EU 65D.
Example: US 32DD to EU
A US 32DD commonly converts to EU 70E.
Example: US 34DDD to EU
A US 34DDD commonly converts near EU 75F.
A US brand that uses F instead of DDD may display the original size as 34F.
Example: EU 70D to US
EU 70D commonly converts to US 32D.
Example: EU 75E to US
EU 75E commonly converts to US 34DD.
Example: EU 80F to US
EU 80F commonly converts near US 36DDD or 36F, depending on the brand's cup sequence.
Why Band Numbers Are So Different
EU labels are based on a centimeter system, while US labels use an inch-based naming convention.
The numerical labels cannot be converted by changing units directly. Use the established band-size relationship.
Why Cup Letters Can Differ
EU systems frequently use a single-letter progression after D, including E, F, G, and H.
US systems may use DD, DDD, F, G, H, and later letters in different orders.
Do Not Convert the Band Without the Cup
A complete conversion requires both parts of the size.
Converting only 34 to 75 without checking DD to E may produce the wrong result.
Do Not Apply UK Double Letters to EU Sizing
Common EU systems do not usually use UK cup steps such as FF, GG, or HH.
First identify the stated sizing system on the product page.
Check Whether the Brand Uses EU or French Sizing
Some French and Spanish labels use band numbers that are 15 points higher than common EU labels.
For example, an EU 75 may appear as a French 90. Do not assume every European chart uses the same band numbers.
EU and US Sister Sizes
Sister sizing still works within either system.
Moving from EU 75E to EU 70F keeps approximately similar cup volume while creating a firmer band.
Moving from US 34DD to US 32DDD performs the same general adjustment.
Shape Can Matter More Than Conversion
A converted bra can still fit poorly when the cup is too shallow, too projected, too wide, too narrow, or too tall.
Conversion identifies a nearby label, not a guaranteed shape match.
How to Confirm a Converted Bra Size
- Fasten the bra on the loosest usable hooks.
- Check whether the band stays level.
- Place all breast tissue inside the cups.
- Check cup edges for spilling or gaping.
- Check whether wires follow the breast root.
- Check the center gore and strap placement.
- Move, sit, bend, and breathe normally.
Common EU-to-US Conversion Mistakes
- Converting the band but not the cup
- Assuming centimeters convert directly to the US label
- Assuming all US brands use one cup sequence
- Confusing EU and French band labels
- Applying UK double letters to EU sizing
- Converting the cup letter without the band
- Ignoring sister-size changes
- Expecting converted bras to have identical shapes
Bra sizing tool
Use the Bra Size Calculator
Enter underbust and full-bust measurements to estimate a starting band, cup, regional conversion, and nearby sister sizes.
Questions and answers
Frequently Asked Questions
What is a US 32 bra band in EU sizing?
A US 32 band commonly converts to an EU 70 band.
What is an EU 75 bra band in US sizing?
An EU 75 band commonly converts to a US 34 band.
Are EU and US cup letters the same?
They often align through D, but common US systems may use DD and DDD where EU systems use E and F.
What is US 34DD in EU sizing?
US 34DD commonly converts near EU 75E, but US brand cup sequences vary.
Why do bra conversion charts differ?
Bra sizing is not fully standardized, and US brands in particular use different cup-letter sequences after D.