Bra Size Calculator
Find your perfect fit in seconds with our precise measurement tool.
How to Measure Correctly
- Step 1: Underbust - Measure around your ribcage directly under your bust. The tape should be snug and level.
- Step 2: Full Bust - Measure around the fullest part of your bust. Keep the tape loose enough so you can breathe, but level with the ground.
- Note - For the most accurate result, wear a non-padded bra while measuring and stand up straight.
Why Correct Lingerie Fit Matters
Did you know that over 80% of women are wearing the wrong bra size? Wearing an ill-fitting bra doesn't just cause discomfort—it can impact your posture, cause back pain, and reduce the lifespan of your lingerie.
The Science of the Perfect Fit
Our Bra Size Calculator uses contemporary sizing standards adopted by leading luxury brands worldwide. By measuring both your underbust and your fullest bust, we can calculate the precise ratio that determines your band and cup size.
The Band
The band provides 80% of the support. If it slides up your back, it's too big. If it leaves red marks, it might be too small.
The Cups
Your breasts should wait comfortably in the cups without spilling over the top or having gaps at the bottom.
Size Conversion Explained
Sizing varies significantly between regions. While a size 34D is common in the **United States**, that same fit would be labeled differently in **Europe (75D)** or **France (90D)**. Our tool provides these conversions instantly to make international shopping effortless.