US Bra Size Calculator – Guide, Suggestions and Tips
Whether you’re shopping US bra brands or trying to confirm your fit, this guide helps you find your correct size using real measurements. Our US Bra Size Calculator is simple, accurate, and designed for every stage of life.
US Bra Size Calculator
Enter your measurements below for your US bra size.
🎯 Your US Bra Size
Not sure if your bra really fits the way it should? You’re not the only one. Over 80% of women wear the wrong bra size. That means millions struggle daily with discomfort and poor support. Finding a bra that actually feels good can change everything how you move, how you feel, even how you stand. Our US Bra Size Calculator takes the guesswork out of sizing so you can find your best fit quickly, privately, confidently and in under a minute. It supports you and boosts your confidence without even trying.
Why Use US Bra Size Calculator?
- Get fast, accurate results tailored to US bra sizing.
- Enjoy an easy-to-follow, visual step-by-step process.
- Designed for every shape, every age, and every stage of life.
- No awkwardness. No pushy ads. Just real help when you need it.
- Trusted by many users to check, recheck, and track size changes privately and without guesswork.
How to Measure Your Bra Size: Simple Steps for Success
Step One: Get Ready
Find a comfortable, non-padded bra to wear while you measure. Stand in front of a mirror if you can and relax your shoulders. Grab a soft measuring tape and get started.
Step Two: Measure Your Band Size
Wrap the tape snugly around your ribcage, just beneath your bust. Keep the tape straight and even all the way around. Write down the number of inches you see.
⚠️ Important: In US bra sizing, an even under bust number adds 4 inches, while an odd adds 5 inches to get your band size. This is unique to the US method and may differ from UK/EU rules.
Step Three: Measure Your Bust Size
Now, gently wrap the tape around the fullest part of your chest. Make sure the tape is evenly level, keeping it snug, but do not pull it too tight. Take a natural breath and note the number of inches.
Step Four: Find Your Cup Size
Subtract your band size from your bust measurement. The difference gives you your cup size.
- One inch difference is an A cup.
- Two inches is a B cup.
- Three inches is a C cup.
- Four inches is a D cup.
- Five inches is a DD or E cup.
- Add another letter for each extra inch.
This method works well for most popular US brands like Victoria’s Secret, Third Love, Aerie, and Soma.
Try Our US Bra Size Calculator Tool
Enter your measurements above in our US Bra Size Calculator, hit ‘Calculate,’ and we’ll show you your best-fitting US bra size super-fast! You’ll also get helpful tips for choosing the most comfortable bra for your body type and lifestyle needs.
US Bra Size Chart for Quick Reference with US Bra Size Calculator Results
| Band Size (inches) | Underbust Measurement (inches) |
|---|---|
| 30 | 26 to 27 |
| 32 | 28 to 29 |
| 34 | 30 to 31 |
| 36 | 32 to 33 |
| 38 | 34 to 35 |
| 40 | 36 to 37 |
| Cup Size | Difference (inches) |
|---|---|
| A | 1 |
| B | 2 |
| C | 3 |
| D | 4 |
| DD or E | 5 |
| DDD or F | 6 |
| G | 7 |
Signs Your Bra Might Not Be The Right Size
Not sure if you need a new size? Here are some telltale signs your current bra isn’t working:
- The band rises up in the back
- You experience pain or discomfort throughout the day
- You’re spilling out of the cups or have empty space in them
- Red marks or indentations remain after removing your bra
- Your straps dig in or slide off even when adjusted.
- You feel unsupported or sore at the end of the day.
- The center gore (middle of the bra) doesn’t sit flat against your sternum.
If you notice any of these signs, it’s definitely time to remeasure for that you can rely on our US Bra Size Calculator!
Common Fit Issues and Simple Solutions
Band riding up? Try a smaller band size.
Cups wrinkling or gaping? Go down a cup size.
Straps digging in? Your band might be too loose or your cup too small. Adjust or try a different size.
Center of your bra not lying flat? You may need a bigger cup size for more coverage and support.
Experiencing side spillage? Look for styles with wider side panels or consider going up a cup size.
Bra Care to Extend the Life of Your Perfect Fit
Once you’ve found your ideal size, make it last longer with these care tips:
- Hand wash when possible, or use a lingerie bag on a gentle cycle
- Air dry instead of using a dryer
- Rotate between at least 3-4 bras to give the elastic time to recover
- Store bras with cups stacked together to maintain their shape
- Check out our detailed Bra Washing Frequency Calculator for personalized care recommendations
Tips from Real People, for Real Life
- Double-check your measurements for the best results.
- If you’re between two sizes, start with the larger size and see how it feels.
- Remember, US sizes are different from UK and European sizes. This US Bra Size calculator works great for most popular US brands just measure and go!
- Bodies change with time, so measure yourself every few months or after any big life changes.
- Don’t be afraid to try different sizes and styles until you find what feels best for you.
- Consider getting professionally fitted at least once to confirm your measurements.
Special Considerations for Different Life Stages
Teenagers
Growing and changing bodies may need more frequent measuring. Check our Teen First Bra Guide for supportive advice.
Pregnancy and Nursing
Expect to change sizes multiple times. Our Maternity Bra Size Tracker can help you stay comfortable through these changes.
Menopause
Hormonal changes often affect breast tissue and size. The Menopause Bra Finder offers specialized recommendations.
Post-Surgery
If you’ve had breast surgery of any kind, consult with your doctor about when to remeasure and what styles might work best for your recovery and comfort.
Expert Resources We Trust
- American Cancer Society’s Breast Health Resources – Learn about breast health and proper self-exams
- The Bra Recyclers – A textile recycling organization that gives bras a second life and helps women in need
If you shop online for US bra brands, sizing can vary a bit. Check each brand’s fit reviews before buying, especially for styles like T-shirt bras or plunges. To check your size, you can use our US Bra Size Calculator.
Related Tools and Helpful Guides on BraCalculators.com
- Sister Size Calculator – Find alternative sizes that might work for your unique shape
- Bra Lifespan Tracker – Know exactly when it’s time to replace your favorites
- Bra Washing Frequency Calculator – Determine the optimal cleaning schedule
- Best Strapless Bra Selector – Find supportive options without straps
- Sports Bra Impact Level Finder – Match your activity level to the right support
- Bra Budget Calculator – Plan your lingerie spending wisely
- Bra Style Personality Quiz – Discover which styles suit your preferences and lifestyle
Our Promise to You
At bracalculators.com, our only goal is to help you feel your best. We offer friendly, expert advice and easy-to-use tools like us bra size calculator for everybody, every day.
Conclusion
You deserve a bra that fits and feels just right. Use our US Bra Size Calculator any time you want to check your size or shop for new bras. Your comfort and confidence are what matter most.
Remember: the perfect bra isn’t just about looking good—it’s about feeling good in your own skin, all day long.
Frequently Asked Questions
Written by: The BraCalculators.com Editorial Team
We specialize in creating accurate bra size tools like US Bra Size Calculator, comfort-first product education, and guidance for parents and individuals seeking reliable, age-appropriate sizing support.
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