Why Your Bra Size Matters More Than You Think
Wearing the wrong bra size isn’t just uncomfortable—it can cause back pain, poor posture, and even skin irritation. At StellaLeah, we’re here to help you find your perfect fit with our easy-to-use Bra Size Calculator. Whether you’re shopping for everyday comfort, a high-impact sports bra, or a 100% cotton option, it all starts with accurate measurements.
US Bra Size Calculator
Enter your measurements below to calculate your estimated bra size and get personalized brand recommendations. This calculator provides results based on US sizing standards.
Your Bra Size Is:
These sizes may also fit you.
Top Brands for Your Size
Discover brands perfectly sized and styled for *you*!
Disclaimer: This calculator provides an *estimated* bra size. Actual fit can vary significantly based on brand, style, and individual body shape. It's *highly recommended* to try on bras in person or use a brand's specific sizing guide for the most accurate fit. We may earn a commission from purchases made through links on this site.
How to Use the StellaLeah Bra Size Calculator
Our calculator uses the standard US sizing method:
- Band Size: Measure snugly around your ribcage (under your bust).
- Bust Size: Measure around the fullest part of your breasts.
Enter your measurements in inches or centimeters, and we’ll instantly generate:
- Your US bra size (e.g., 34C).
- Sister sizes for flexibility.
- Personalized brand recommendations, including options for moisture-wicking sports bras or cold-weather workouts.
Bra Sizing 101: What Most Women Get Wrong
1. Band Fit
A too-loose band offers no support, while a tight one digs into your skin. The band should sit level around your torso—no riding up!
2. Cup Confusion
Cup sizes aren’t static! A 34D isn’t the same as a 36D. Learn about sister sizes in our results to find alternatives.
3. Activity-Specific Needs
Your everyday bra might not work for the gym. Check out our guides to the best winter sports bras or bras for tweens for specialized support.
Key Features of Our Calculator
- Sister Sizes: Get alternative sizes (e.g., smaller band/larger cup) for better fit options.
- Brand Recommendations: Filtered results based on your size, linked to Amazon for easy shopping (affiliate partnerships).
- Disclaimer: Sizes are estimates—always try bras on for the best fit.
Common Bra Fitting Issues Solved
- Bulging or Gapping: Indicates an ill-fitting band or cup. Use our calculator to refine your size.
- Strap Digging: A sign your band is too loose. Explore Best Bras for Tweens for youth-friendly options with adjustable straps.
- Bouncing During Workouts: Opt for high-support bras like those in our Best Winter Sports Bras guide for cold-weather activities.
How We Source Our Recommendations
Our database includes over 100 brands, from luxury labels like Chantelle to budget-friendly options like Skims. Each recommendation is filtered by your calculated size, ensuring relevance. For cotton-focused comfort, see our 100% Cotton Sports Bra Guide.