38B bra size: chest and cup measurements, sister sizes in inches and cm, example of celebrity breasts

According to our data, 2,08% of women in the United States, or 2814999 people, have this size. Among them: Kelly Clarkson, Shohreh Aghdashloo, Gina Carano. Below you will learn how size 38B differs from sizes 38A, 40A, 36B, 40B, 36C, 38C. Find out why it’s average.

How many inches and centimeters in 38B bra size

	in	cm
Bust measurements (US+0\ UK+0)	39 – 42	99,1 – 106,7
Underbust measurements (US+0\ UK+0)	37 – 39	94 – 99,1
Bust (US+4\ UK+4)	35 – 38	88,9 – 96,5
Underbust (US+4\ UK+4)	33 – 35	83,8 – 88,9

Bra size (US+0\UK +0 system)	Cup diameter	Volume of one cup	Weight of both breasts
38B	13.1 cm (5+1/6 in)	588 cm3 (36 cu in)	1.06 kg (2.3 lb)

Examples of what size 38B breasts look like in celebrities

1. Kelly Clarkson

Kelly Clarkson Performs at The Chelsea by The Cosmopolitan of Las Vegas, on Flickr. Attribution-NoDerivs 2.0 Generic (CC BY-ND 2.0)

2. Shohreh Aghdashloo

146030_2947 by Walt Disney Television, on Flickr. Attribution-NoDerivs 2.0 Generic (CC BY-ND 2.0)

3. Gina Carano

Strikeforce_Weighins-07 by Michael Dunn, on Flickr. Attribution 2.0 Generic (CC BY 2.0)

38B VS other sizes

vs 36B: The 36B bra has 2 inches less band. And the cup volume is slightly smaller.
vs 40B: The 40B bra has 2 inches more band. And the cup volume is slightly larger.
vs 38A: The 38A bra has the same band size. But the cup volume is smaller.
vs 38C: The 38C bra has the same band size. But the cup volume is larger.
vs 36C: It’s a sister size. The 36C bra has the same cup volume. But the band is a little tighter.
vs 40A: It’s a sister size. The 40A bra has the same cup volume. But the band is a little looser.

38B sister size chart

	Sister size down	Current bra size	Sister size up
US/UK	36C	38B	40A

Is 38B big, small or medium?

Both size 38B breasts weight 2.3 lbs (1.06 kg). The volume of one breast is 36 cubic inches (588 cm3). This is the volume and weight of 9,78% of women in the United States, or 13263613 people.

The number of women with smaller breasts is 34,5%. 38B is conventionally average size.

11,63% of women in the United States have a B cup size. 14,74% have a smaller cup size. The B cup size is conventionally smaller than the average cup size.

38B equivalents

US+0 system:

EU (Europe) – 95AA
FR/BE/ES – 110AA
AU/NZ – 20AA
JP/KO – 95AA
IT – 7AA
UK+0 – 38B
UK+4 – 42AA
US+4 – 42AA

US+4 system:

EU (Europe) – 85A
FR/BE/ES – 100A
AU/NZ – 16A
JP/KO – 85B
IT – 5A
UK+0 – 34DD
US+0 – 34E
UK+4 – 38B

What size sports bra for 38B

38B (US+0/UK+0 system) = XL

38B (US+4/UK+4 system) = N/A