UK chart

UK Bra Size Chart

This UK bra size chart is built for shoppers comparing British sizing with US, EU, French, and Australian labels. It keeps each UK size on the same row as its US source size so you can move between systems without guessing.

UK sizing is especially useful for fuller cup ranges because its cup sequence is more explicit after D. In this active table, every UK label is generated from the shared Wearavo size dataset.

Last updated: July 9, 2026

Full UK bra size chart

The main UK label is listed first, followed by cup, band, measurement ranges, and equivalents in the other supported systems.

UK bra size chart with measurement ranges and international equivalents.
UK size	Band	Cup	Underbust in	Underbust cm	Bust in	Bust cm	US	EU	FR	AU
30A	30	A	29-31	74-79	30.5-31.5	77-80	30A	65A	80A	8A
30B	30	B	29-31	74-79	31.5-32.5	80-83	30B	65B	80B	8B
30C	30	C	29-31	74-79	32.5-33.5	83-85	30C	65C	80C	8C
30D	30	D	29-31	74-79	33.5-34.5	85-88	30D	65D	80D	8D
30DD	30	DD	29-31	74-79	34.5-35.5	88-90	30DD	65E	80E	8DD
30E	30	DDD	29-31	74-79	35.5-36.5	90-93	30DDD	65F	80F	8E
32A	32	A	31-33	79-84	32.5-33.5	83-85	32A	70A	85A	10A
32B	32	B	31-33	79-84	33.5-34.5	85-88	32B	70B	85B	10B
32C	32	C	31-33	79-84	34.5-35.5	88-90	32C	70C	85C	10C
32D	32	D	31-33	79-84	35.5-36.5	90-93	32D	70D	85D	10D
32DD	32	DD	31-33	79-84	36.5-37.5	93-95	32DD	70E	85E	10DD
32E	32	DDD	31-33	79-84	37.5-38.5	95-98	32DDD	70F	85F	10E
34A	34	A	33-35	84-89	34.5-35.5	88-90	34A	75A	90A	12A
34B	34	B	33-35	84-89	35.5-36.5	90-93	34B	75B	90B	12B
34C	34	C	33-35	84-89	36.5-37.5	93-95	34C	75C	90C	12C
34D	34	D	33-35	84-89	37.5-38.5	95-98	34D	75D	90D	12D
34DD	34	DD	33-35	84-89	38.5-39.5	98-100	34DD	75E	90E	12DD
34E	34	DDD	33-35	84-89	39.5-40.5	100-103	34DDD	75F	90F	12E
36A	36	A	35-37	89-94	36.5-37.5	93-95	36A	80A	95A	14A
36B	36	B	35-37	89-94	37.5-38.5	95-98	36B	80B	95B	14B
36C	36	C	35-37	89-94	38.5-39.5	98-100	36C	80C	95C	14C
36D	36	D	35-37	89-94	39.5-40.5	100-103	36D	80D	95D	14D
36DD	36	DD	35-37	89-94	40.5-41.5	103-105	36DD	80E	95E	14DD
36E	36	DDD	35-37	89-94	41.5-42.5	105-108	36DDD	80F	95F	14E
38A	38	A	37-39	94-99	38.5-39.5	98-100	38A	85A	100A	16A
38B	38	B	37-39	94-99	39.5-40.5	100-103	38B	85B	100B	16B
38C	38	C	37-39	94-99	40.5-41.5	103-105	38C	85C	100C	16C
38D	38	D	37-39	94-99	41.5-42.5	105-108	38D	85D	100D	16D
38DD	38	DD	37-39	94-99	42.5-43.5	108-110	38DD	85E	100E	16DD
38E	38	DDD	37-39	94-99	43.5-44.5	110-113	38DDD	85F	100F	16E
40A	40	A	39-41	99-104	40.5-41.5	103-105	40A	90A	105A	18A
40B	40	B	39-41	99-104	41.5-42.5	105-108	40B	90B	105B	18B
40C	40	C	39-41	99-104	42.5-43.5	108-110	40C	90C	105C	18C
40D	40	D	39-41	99-104	43.5-44.5	110-113	40D	90D	105D	18D
40DD	40	DD	39-41	99-104	44.5-45.5	113-116	40DD	90E	105E	18DD
40E	40	DDD	39-41	99-104	45.5-46.5	116-118	40DDD	90F	105F	18E

How to use this chart

Measure your underbust first, then find the band range that matches the chart. Next, compare your bust measurement with the cup range and read across the row for UK and international labels.

If you already know a US size, scan the US column and read the UK label beside it. If the band feels close but the cup is wrong, compare nearby cup steps before assuming the whole size is wrong.

Ready when you are

Convert a single size instead of browsing every chart row.

Convert a size

Ready when you are

Not sure of your measurements? Use the calculator before choosing a chart row.

Find my size

UK cup letters after D

UK brands commonly use a fuller alphabet sequence such as DD, E, F, FF, G, and GG. That means a US cup label above D may not translate to the same letter in UK sizing.

Many calculators use a fit-first method similar to the Kelly Bra Fit approach: anchor the band with the underbust, then use the bust difference to estimate cup depth. The chart supports that workflow while keeping international equivalents visible.

Brand sizing still matters

A chart gives you a standard reference, but bras are products with shape, stretch, wire width, cup depth, and construction choices. Two bras with the same printed label can feel different if one brand uses firm elastic and another uses a stretchier band.

Use this page to identify the closest label, then check the retailer's chart and the real fit. If the cup volume feels close but the band feels wrong, compare sister sizes before jumping to an unrelated cup letter.

More charts

International chart US EU French Australian Inches

Related size hubs

30A 30B 30C 30D 30DD 30DDD 32A 32B

Unusual sizes and sport bras

What if my size is outside this chart?

The active Wearavo dataset covers common reference sizes. If your measurements fall outside this range, use the same measurement principles and compare specialist brand charts that carry extended bands or cups.

Should sport bras use the same chart?

Sport bras often use firmer fabrics, compression, or alpha sizing. Start with your chart size, then check the sport bra's own support level, cup structure, and band guidance.

FAQ

How is UK cup lettering different from US?

UK sizing usually uses DD, E, F, FF, G, and GG after D, while US brands often use DD and DDD. The label can change even when the intended cup volume is similar.

What is a US 34DDD in UK sizing?

In this chart, US 34DDD maps to UK 34E. Always compare the specific brand chart because cup grading can vary.

Do UK and US band numbers match?

For the active rows in this chart, UK and US band numbers match. Cup labels are where the bigger differences usually appear.

Can I use a UK chart for Australian bras?

Australian cup letters often follow a UK-like sequence, but the band number is different. Use the AU column to avoid mixing the two systems.