Step by Step Guide to Finding Your Bra Size

Let’s be real — most of us have been wearing the wrong bra size for years. 😅 I’ve been there, squeezing into cups that dig in or dealing with straps that constantly slip. As a lingerie blogger who’s tested over 50+ brands and helped thousands find their true fit, I’m breaking down exactly how to measure your bra size — no guesswork needed.

Why Getting Your Bra Size Right Matters

A well-fitting bra isn’t just about comfort — it affects your posture, confidence, and even back pain. According to a 2022 study published in the Journal of Obstetrics and Gynaecology, nearly 80% of women wear the wrong size. That’s wild!

Step 1: Measure Your Band Size

Grab a soft measuring tape. Wrap it around your ribcage, just under your bust, where the band of a bra sits. Make sure it’s snug but not tight — you should fit two fingers comfortably.

• If your measurement is even (32, 34, 36), that’s your band size.
• If it’s odd (31, 33, 35), round up to the nearest even number.

Step 2: Measure Your Bust Size

Now, wrap the tape around the fullest part of your bust — usually at nipple level. Keep the tape parallel to the floor and don’t hold your breath (seriously, breathe normally!).

Step 3: Calculate Your Cup Size

Subtract your band size from your bust size. Each inch of difference equals one cup size:

For example: Band = 34", Bust = 39" → Difference = 5" → Cup = DD/E → Your size? 34DD.

Pro Tips for Accuracy

• Measure at the end of the day — breasts can swell slightly due to hormones.
• Try on bras in-store if possible. Brands vary! A 34B in Bravado might feel like a 32C in another.
• Check the band fit: It should stay level all around and not ride up.

Common Mistakes to Avoid

• Assuming your size is static — weight changes, pregnancy, and aging affect fit.
• Ignoring sister sizing — going up a band and down a cup (e.g., 34C → 36B) can offer better support.
• Trusting online charts blindly — use them as a starting point, not gospel.

Bottom line? Measuring yourself is the first step — but trying bras on seals the deal. Don’t skip the fitting room!