34B Bra Size Chart

34B Bra Size Chart

Looking for 34b bra size chart? If so, you are at the right place. Scroll down to see the chart in both US and International sizes.

How big is 34B bra size?

Underbust (IN) Overbust (IN) Underbust (CM) Overbust (CM)
30-32 in 34-36 in 76-81 cm 89-91 cm

Is 34B small medium or large?

34B size is smaller than the average. Therefore, it is considered small medium.

What is a size up from 34B?

If you wear a 34B and realize that the cup fits but the band is too small, you can size up. That will mean going up two band sizes from the 34B to get the right band size, which would be 36A. This is known as a sister size, i.e., the bra has the same cup size but a different band size.

See the sister size chart for more information.

Is 34B a good size?

34B is one of the most popular bra sizes in the country. It’s not too big as a C nor too small as an A cup. However, when compared to all other bra sizes, it is considered small medium. That’s a good size for most people.

For perspective, here is a 34B breast example by a model:

Model wears a 34B Warner’s No Side Effects T-Shirt Bra.

34B Bra Size Chart

USA UK FR/SP EU/International AU/NZ
34B 34B 90B 75B 12B

That’s 34B bra size chart and its equivalent in different countries.

Now that you are sure about the sizes, here are some brands that offers 34B bras you can buy.

1. Warner’s

Model wears the Cloud 9 Wirefree T Shirt Bra

2. Natori

Model wears the Gravity High Impact Underwire Bra

3. Bali

Model wears the Comfort Revolution Seamless Wirefree Bra

4. Wacoal

Model wears the Halo Lace Convertible Bra

5. Hanro

Model wears Cotton Sensation Wirefree Bra

6. Brabar

Model wears Soft Convertible Cami Bralette

7. Moi

Underwire T-Shirt Bra

Model wears Underwire T-Shirt Bra


Jeanette is a certified professional bra fitter. Originally from Lyons, France, Jeanette moved to Houston, TX to head the Brabbly content team. When not talking about bras and underthings, she's usually tucked in her study writing a sci-fi novel.

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