Bra Size Calculator
Find Your Perfect Bra Size
Believe it or not, 80% of women wear the wrong bra size. That’s like walking around in shoes two sizes too big or too small—uncomfortable and frustrating! Your upper body feels the same when your bra doesn’t fit right—either too loose to support or too tight to breathe.
While nothing beats an expert fitting, Velvy’s Bra Size Calculator gets pretty close! All you need is a measuring tape and a little time. Keep in mind, not all bras fit the same—your breast shape matters too (check out our Breast Profile Guide to learn more!).
Here’s something many women don’t realize: your bra size can change over time. Weight changes, workouts, pregnancy, nursing, or even age can all affect your fit. Just because you wore a certain size at 16 doesn’t mean it’ll still work at 20—or 30!
That’s where we come in. At Velvy, we make finding your size simple and stress-free. Just slip into a non-padded bra, grab a measuring tape, and use our easy 3-step calculator.
📌 Need help picking the right bra style after you find your fit? Check out our Velvy Bra Styling Guide to match your size with your perfect support.
Bra Size Calculator
How to Measure Your Bra Size
Step 1: Measure Your Underbust
Wear a contour or underwire bra (avoid padded or push-up styles). Stand up straight, relax your shoulders, and breathe out. Wrap a measuring tape firmly around your ribcage, directly under your bust. The tape should stay level and snug—your bra is meant to stretch slightly.
Step 2: Measure Your Overbust
Measure around the fullest part of your bust, keeping the tape relaxed and parallel to the floor. Make sure it rests lightly without pressing into your skin.
Tip: Take both measurements in centimeters (cm) for the most accurate fit.