What is 30B Bra Size in CM?

What is 30B Bra Size in CM?

What is 30B Bra Size in CM?

Do you know what is 30B bra size in CM (centimeters)? If you don’t, check out the bra size conversion chart for the accurate conversion.

A 30B bra size is not a big size. In fact, it is smaller than the average cup size, which is C to DD. Still, a B is bigger than A cups and AA cups.

S0, what is the measurement of 30B bra size in CM?

30B Bra Size in CM

If you are a cup size 30B, this means that your underbust measures 61-71 cm while the overbust measures 79-81 cm. In terms of inches, the underbust measures between 26-28 inches while the overbust measures between 31-32 inches.

Here is a chart showing 30B bra size in CM and inches:

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Bra Size Underbust (IN) Overbust (IN) Underbust (CM) Overbust (CM)
30B 26-28 in 31-32 in 61-67 cm 71-81 cm


What is 30B bra size?

30B is a small bra size that fits women whose underbust measurements are 61-71 cm while the overbust measurements are between 79-81 cm

What is 30 bra size in CM?

In terms of centimeters, a woman who wears a 30B bra size measure 61-71 cm on the underbust and  79-81 cm on the overbust. However, a 30 bra size does not give us the full picture when we don’t know the cup size. For example, a 30B and 30D are not the same size. Generally, bras that are higher up in the alphabet are larger than those that are lower in the alphabet.

Therefore, a 30A bra size is smaller than a 30G bra size. This means that to get the correct 30 bra size in cm, you have to specify the cup size also.

Is 30B a small breast size?

30B is considered a small breast size. The average breast size is C to DD. Therefore, a B cup is a small breast size. However, it is still larger than an A cup and an AA cup size.

What is 32B bra size in CM?

In terms of CM, a 32B bra size fits a woman who measures 28-30 inches on the underbust and 33-34 inches on the overbust. In terms of centimeters, the measurements are 71-76 cm underbust and 84-86 cm overbust.

Now that we know the correct 30B bra size measurements, check out some of the best 30B bras on the market.

Best 30B Bras

Here are some brands that offer the best 30B bras.

30B Bridal Bra: Evelyn Bra

Evelyn Bra

Available on Brabbly

30B Balconette Bra: Maddona Bra

Madonna Balconette Bra With Crystals

Available on Brabbly

30B T-shirt Bra: Natori Bliss Perfection T-Shirt Bra

Natori Bliss Perfection T-Shirt Bra

Available on Barenecessities| Amazon| HerRoom

30B Padded Bra: Glow Balcony Bra

Glow Balcony Bra (with Crystals)

Available on Brabbly | Amazon | Barenecessities

30B Push Up Bra: Wacoal Embrace Lace Petite Push Up Bra

Wacoal Embrace Lace Petite Push Up Bra

Available on Barenecessities | Amazon | HerRoom

See other 30B bras on our store.

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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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