Question 1

How do I measure my bra size at home?

Accepted Answer

Measure your band size by wrapping a tape measure snugly around your ribcage directly under your bust, then measure your bust size around the fullest part of your chest. The difference between the two, in inches, corresponds to your cup size (1 inch ≈ A cup, 2 inches ≈ B cup, and so on).

Question 2

Why do bra sizes differ between countries?

Accepted Answer

Band sizes are measured differently across regions — the US/UK use inches while EU, France/Spain, and Italy use centimeter-based or index-based band numbers — and each region's cup-letter scale starts from a different baseline, which is why the same physical size gets a different label everywhere.

Question 3

What if my band and cup measurements don't match a standard size?

Accepted Answer

Round the band measurement to the nearest even number and the cup difference to the nearest whole inch — bra sizing is inherently approximate, and most people end up trying a couple of neighboring sizes (sister sizes) to find the best fit.

Question 4

How often should I re-measure my bra size?

Accepted Answer

Re-measure every 6-12 months, or after any significant weight change, pregnancy, or surgery, since band and bust measurements shift over time even without a big lifestyle change.

Question 5

What's the difference between UK and US cup sizing?

Accepted Answer

Band sizes are identical between US and UK, but cup sizing diverges above a D cup: UK sizing continues DD, E, F, FF, G, while US sizing continues DD/E, DDD/F, G — so a UK DD is roughly a US E.

Question 6

Do bra sizes run the same across brands?

Accepted Answer

No — like clothing sizes generally, bra sizing isn't standardized across manufacturers, so the same labeled size can fit differently between brands depending on their cut and construction.

Band (US/UK)	Cup (US/UK)	EU	France/Spain	Italy
30	A	65A	80A	0A
30	B	65B	80B	0B
30	C	65C	80C	0C
32	A	70A	85A	1A
32	B	70B	85B	1B
32	C	70C	85C	1C
32	D	70D	85D	1D
34	A	75A	90A	2A
34	B	75B	90B	2B
34	C	75C	90C	2C
34	D	75D	90D	2D
36	A	80A	95A	3A
36	B	80B	95B	3B
36	C	80C	95C	3C
36	D	80D	95D	3D
38	B	85B	100B	4B
38	C	85C	100C	4C
38	D	85D	100D	4D
40	B	90B	105B	5B
40	C	90C	105C	5C
40	D	90D	105D	5D

Bra Size Converter

Full Size Chart

How to Measure

Frequently Asked Questions

Clothing Size Converter

Kids Clothing & Shoe Size Converter

Suit/Blazer Size Converter