What Bra Size Is Katherine Heigl?

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American actress Katherine Heigl is best known for her lead roles in Grey’s Anatomy, Roswell, and Knocked Up. She has also established herself as a cover girl for various magazines.

Despite being one of Hollywood’s most controversial actresses, people continue to talk about her physique. I’m examining Katherine Heigl’s bra size and how certain factors can affect it.

What Bra Size Is Katherine Heigl?

The bra size of Katherine Heigl is 34B. This indicates she uses bras with B cups and a 30- to 32-inch band to support her 35- to 36-inch bust.

Graphic image of Katherine Heigl with 34B bra size wearing a green strapless dress

Having bell-shaped breasts makes her 34B boobs have a narrower top and a rounder bottom. In contrast, American actress Ashley Judd also wears a 34B bra, and Sarah Paulson who also wears a 34B bra, both have teardrop-shaped breasts that make their bust’s top a bit fuller.

Katherine Heigl can wear 32C and 36A for maternity bras or bralettes under a shirt when in between sizes because of pregnancy. This means she has almost similar bust measurements to that of fellow actress Naya Rivera, who had a 32C bra size.

Katherine Heigl Measurements

Katherine Heigl is taller in height, measuring in at 5 feet 9 inches (5′ 9”). It’s estimated that her body measurements are 38-25-37 inches, which translates to a bust size of 38″, a waist size of 25″, and a hip size of 37”. She weighs roughly 128 pounds.

Benefits of a Small Cup Size

Can Wear Unlined Bras

There is no padding or foam in an unlined bra because the cups simply have one piece of fabric across them. Unlined bras typically do not provide much support, so they are perfect for A-B cups. If padded bras bother you, especially on humid days, wearing unlined bras will help your breasts cool off quickly.

Can Go Braless

One of the best things about being small-chested is that if you don’t want to wear a bra, you don’t have to! At their core, bras are meant to support your boobs, and when you are an A or B cup, you don’t need a bra for this purpose.

Don’t Have Back Pain

Ladies blessed with small breasts can avoid the dreaded back pain. Breast weight can cause your shoulders to move forward, which forces the muscles in your back and shoulder blades to adjust. Having less weight in front means your torso can easily carry your breasts, and the weight doesn’t need to be redistributed.

Drawbacks of a Small Cup Size

Sports Bras Can Flatten Breasts Too Much

Sports bras are a must-have in every woman’s wardrobe, even if you have small breasts. However, some sports bras have the potential to flatten your chest by compressing more breast tissue. It’s like watching your small breasts disappear once you wear a sports bra.

Might Feel Less Feminine

As you go through puberty and enter womanhood, one key thing that happens is your breasts grow (or, they are supposed to!). So, when you end up with boobs that are A or B cups, you might feel like your figure looks less feminine than you want it to.

Gaps Form Between Your Boobs and the Bra

When you have A-B sized breasts, it’s not uncommon for a gap to form between your chest and the bra you’re wearing. This is because your boobs are not large enough to fill the bra. Even if you try sizing down to a smaller bra, you might experience this issue.

Bra Size Measurement & Cup Size | A, B, C, D, DD Bra Sizes AND Extra Large Breasts


Katherine Heigl has a bra size of 34B. This is a fairly small bra size, although bras with angled or padded cups can contour the bust better. Plunge and demi bras are among the best styles for 34B breasts.


Allena is the Founder and Editor of The Better Fit, a platform dedicated to empowering women with practical advice on bras and fitness, inspired by her own revelation of the widespread issue of incorrect bra sizing. Her expertise and tips have been recognized by major publications such as Cosmopolitan, Better Homes & Gardens, Insider, and NBC, making her a trusted voice in women's wellness and lifestyle.