Have you ever wondered if your bra fits the way it should? You are not alone. Wearing a bra that fits just right can help you feel comfortable, supported, and even more confident daily. Our US Bra Size Calculator makes it easy for you to find your true size, no confusing charts or guesswork required. Let us walk you through it step by step.
US Bra Size Calculator
Enter your measurements below for your US bra size.
🎯 Your US Bra Size
Why Use This 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 embarrassment, no sales pitch, just genuine help.
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. If your measurement is an even number, add four inches. If it is odd, add five inches. This is your band size. For example, if you measure 31 inches, your band size is 36.
Step Three: Measure Your Bust Size
Now, gently wrap the tape around the fullest part of your chest. Make sure the tape is level, 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.
Try Our US Bra Size Calculator Tool
You can type your measurements into the calculator below and select US sizing. Just hit “Calculate” and see your best fit in seconds. You’ll also get helpful tips for choosing the most comfortable bra for your body type and lifestyle needs.
A Visual Guide to Measuring
![Bra Size Measuring Diagram] This image shows how to use a measuring tape around the band and bust. The tape should be straight and flat for both steps.
US Bra Size Chart for Quick Reference
| 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:
- Straps constantly slip down your shoulders
- The band rises up in the back
- You experience pain or discomfort throughout the day
- The center gore (middle part) doesn’t lie flat against your sternum
- You’re spilling out of the cups or have empty space in them
- Red marks or indentations remain after removing your bra
If you notice any of these signs, it’s definitely time to remeasure!
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. Use this calculator for all your favorite American brands.
- 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
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 for every body, 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.