UK to US Bra Size
Keep the UK band number when shopping US sites. Cup letters align through D; above that, map carefully and prefer each brand’s published chart.

| UK | US (typical) | Note |
|---|---|---|
| 32B | 32B | Bands match |
| 34C | 34C | Bands match |
| 36DD | 36DD | Often same letter |
| 34E | 34DD / 34DDD | Brand-dependent |
| 36F | 36DDD / 36G | Confirm brand ladder |
UK to US bra size conversion
UK cup sizes add double letters (FF, GG) where US uses triple letters (H, I, J) differently. UK 34F often equals US 34G depending on brand chart—use crosswalk for DD+.
Band number in inches is shared (32, 34, 36) between UK and US.
UK to US cups
| UK cup | US cup | Notes |
|---|---|---|
| DD | DD/E | |
| E | DDD/F | |
| F | G | Check brand |
| FF | H | |
| G | I | Brand variance |
Convert UK bra to US
- 1
Keep band
UK 36 band = US 36 band.
- 2
Translate cup
Use table from DD upward.
- 3
Shop US site
Filter US size after conversion.
- 4
Verify sister size
36F UK → 38E UK ↔ 36G US approx.
Shopping UK brands US
- Freya, Panache UK cups on tag—convert before compare to VS US.
- EU 80F ≠ UK 36F automatically.
- Sports bra S/M/L ignore this page.
- Strapless same band/cup rules apply.
UK to US bra mistakes
Avoid: UK F = US F
Instead: UK F often US G or DDD depending line.
Avoid: +4 band myth for all
Instead: Measure underbust; modern brands use snug measure.
Avoid: Cup only without band
Instead: Both required for conversion.
Ordering US brands from UK size
US DDD and UK E equivalence holds for many brands but not all—check brand-specific chart for G+ cups.
Band sizing uses snug underbust inches on both systems—do not add arbitrary inches.
Strapless US bras may run tight in band—sister size up band, down cup if slipping.
Return or exchange workflow
- 1
Keep packaging
Boxes and hang tags speed refunds when size is wrong.
- 2
Try indoors only
Scuffed soles or worn labels may void returns.
- 3
Document fit issue
Photo of pinch point or heel gap helps support.
- 4
Reorder fast movers
Half sizes and popular EU widths sell out during sales.
Real-world notes on uk to us bra size
Charts for uk to us bra size summarize typical grading—they are not a guarantee for every season or factory run. When a brand refreshes a last or fit block, reviews often mention it before charts update.
Marketplace listings may ship mixed inventory. Compare the size stamped inside the item on delivery with the chart row you used at checkout.
If you are gifting, ask for body or foot measurements in cm instead of guessing their usual tag size. Gift returns are harder when wear signs appear.
Sales associates can measure you in store; take a photo of the store chart if you later order online from the same brand.
Between online orders, remeasure if your weight changed, you had a foot injury, or you switched sock or insole thickness for running.
Teaching kids their cm size helps them shop later—write foot length inside closet door as a reference.
Document the date you measured—repeat after pregnancy, injury, or major weight change so old numbers do not linger in notes apps.
Measurement hygiene
- Stand weight evenly on both feet when tracing outlines.
- Measure twice on different days if you are between rows.
- For clothing, wear the undergarments you will use with the piece.
- For shoes, match sock thickness to intended use.
- Convert using cm first, then read US/UK/EU from the row—never reverse the order.
- Keep a saved note on your phone with your foot cm and bust/waist/hip cm.
- Update kids' sizes every growth spurt—do not buy multiple seasons ahead.
- Check whether reviews mention 'runs small' for the exact model you chose.
- Prefer free-return windows when trying a new brand last.
- Wide feet: try width SKUs before adding length—see 2E vs 4E shoe width.
Common uk to us bra size errors
Avoid: Using an old size tag from a different brand
Instead: Measure today and match the chart row for this category.
Avoid: Rounding down cm to stay in a smaller letter size
Instead: Round to the row that fits your longer foot or largest body measure.
Avoid: Ignoring half sizes or wide widths
Instead: Half steps and 2E/4E widths fix fit better than guessing.
Avoid: Assuming sales charts match outlet or marketplace stock
Instead: Verify inside label on delivery against the chart you saved.
FAQ
Is UK 34E the same as US 34DD?
Often close, but not guaranteed. Some US lines use DD where UK uses E; others use DDD. Check that brand’s conversion chart.
Do I change the band number from UK to US?
No for standard even bands. UK 36 stays US 36. Focus on cup-letter differences above D.