Bra Size Converter for UAE Shopping
Compare major international bra-size labels or use underbust and overbust measurements for a starting reference. The target brand’s current size chart and actual fit should always take priority.
Last reviewed: 26 July 2026
Find an International Reference
Convert a known size or estimate a starting size from measurements using the same published reference system.
Sister Sizes — UK Reference
This is a reference conversion, not a guarantee that every brand will fit identically.
International Bra Size Reference
The converter combines Triumph’s international label chart with its published Australia/New Zealand measurement ranges; the target brand’s chart remains the final reference.
| Underbust (cm) | US / UK | EU | AU/NZ | FR/ES | Italy | JP/KR Band |
|---|---|---|---|---|---|---|
| 63–67 | 30 | 65 | 8 | 80 | 0 | 65 |
| 68–72 | 32 | 70 | 10 | 85 | 1 | 70 |
| 73–77 | 34 | 75 | 12 | 90 | 2 | 75 |
| 78–82 | 36 | 80 | 14 | 95 | 3 | 80 |
| 83–87 | 38 | 85 | 16 | 100 | 4 | 85 |
| 88–92 | 40 | 90 | 18 | 105 | 5 | 90 |
| 93–97 | 42 | 95 | 20 | 110 | 6 | 95 |
| 98–102 | 44 | 100 | 22 | 115 | 7 | 100 |
| 103–107 | 46 | 105 | 24 | 120 | 8 | 105 |
| 108–112 | 48 | 110 | 26 | 125 | 9 | 110 |
Boundary handling: because the published cup-difference ranges share endpoints, an exact shared endpoint such as 12.0 cm is assigned to the next range. The final 30.0 cm endpoint remains included.
How to Measure for a Starting Bra Size
Measurements help you choose a first size to try; they cannot fully predict shape and style fit
Measure Underbust Firmly
Place the tape directly under the bust, keep it horizontal and hold it firmly around the body. Triumph recommends taking the measurement after exhaling.
Measure Overbust Loosely
Measure horizontally around the fullest part of the bust without compressing the breast tissue. An unpadded bra can help keep the shape natural while measuring.
Use the Published Ranges
The tool matches underbust to Triumph's published band ranges and the overbust-minus-underbust difference to its cup ranges. It does not simply round your underbust to the nearest even inch.
Check the Bra on Your Body
The band should sit level, cups should not spill or gape, wires should not sit on breast tissue, and the centre should sit correctly for the bra style. Shape and construction can change the best size.
Measurements are a starting point only. M&S fit guidance notes that breast shape and support needs can affect how a style feels, so measurements alone may not identify the best-fitting bra.
How Bra Sizing Differs by Brand
Use the converter as a reference and the target brand's current chart as the final sizing source
Triumph
Reference Used HereThis tool uses Triumph's published international conversion, measurement and sister-size references so that one consistent data model is used throughout the page.
Wacoal / Freya / Fantasie
Extended Cups DifferWacoal publishes distinct US and UK extended cup sequences. For example, after US DDD the official US sequence continues G, H, I, while the UK sequence continues E, F, FF, G. Use the brand's own chart for larger cups.
Bravissimo
UK Sizing ReferenceBravissimo's conversion guide is designed to help shoppers find a UK size to try and explicitly warns that brands fit differently. Its sister-size guidance is useful within UK sizing.
Marks & Spencer
Fit FirstM&S advises checking band, cups, centre and wires on the body, and notes that measurements alone are only a rough starting point because style and breast shape affect fit.
Intimissimi
Use Its Own ChartIntimissimi publishes its own underbust and cup tables. Its labeling conventions are not identical to every generic international chart, so use the Intimissimi guide for Intimissimi products.
Multi-Brand Retailers
Check the LabelRetailers such as Namshi carry bras from different brands and sizing systems. Confirm whether the product is using UK, US, EU or another label before applying a conversion.
Frequently Asked Questions
No. Conversion charts are useful reference systems, but brands can use different labeling and grading conventions. The differences become especially noticeable in extended cup sizes and some regional labels. Use the target brand's current chart before buying.
Sister sizes are nearby band-and-cup combinations with similar cup volume. Within one sizing system, moving down one band generally means moving up one cup, while moving up one band means moving down one cup. For example, M&S gives 34C, 32D and 36B as sister sizes.
They can provide a starting size to try, not a guaranteed final size. Breast shape, wire width, cup depth, padding, stretch and bra style can all change the fit. M&S explicitly recommends judging how the bra sits on the body rather than relying on measurements alone.
Regional and brand conventions can differ. The Japan/South Korea values shown in this tool are specifically the mappings published in Triumph's international chart, not a guarantee for every Japanese or Korean lingerie brand.
The band should sit level and feel comfortably firm, the cups should contain the breast tissue without spilling or wrinkling, and underwires should not sit on breast tissue. The centre should sit appropriately for the style, and the straps should support without doing all the work.
Shop Bras in the UAE
External retailer links are provided for convenience. Check the product’s sizing system, current price, availability and return terms before ordering.
Marks & Spencer UAE
Browse a broad bra range using UK sizing and check M&S fit guidance.
Browse M&S Bras →H&M UAE
Browse current bra styles and use the product or brand size information provided.
Browse H&M Bras →Namshi UAE
Browse multi-brand lingerie and verify the sizing system used by each label.
Browse Lingerie →These retailer links are not size guarantees. If a link is monetised in the future, it should be marked as sponsored and disclosed before the first affiliate link.