International Bra Size Converter

Convert bra sizes across 20 international sizing systems with live visual fitting guide

📏
Select Your Size
Choose your country, band size, and cup size








Selected Size
—
Band: — | Cup: —
✨
Realistic Visual Simulator
Detailed anatomical profile based on selected size
Size: —
Band–“
Bust–“
Cup Diff—

🌍 Your Size in 20 Countries

👯 Sister Sizes & Recommendations

Sister sizes have the same cup volume but different band fits – try these if your usual size isn't
available.

Medical & Fitting Disclaimer

This tool is for informational and educational purposes only. Bra sizing varies significantly between
brands, manufacturers, and styles. A professional fitting is always recommended for the most accurate
results. The visual representation is a generalized illustration and may not reflect individual body
proportions perfectly. If you experience discomfort or skin irritation, discontinue use of any
ill-fitting bra immediately and consult a professional.


How It Works

Convert your bra size in 3 simple steps

Step 1: Select Country

Choose your current country or region from 20+ options

Step 2: Enter Your Size

Input your band size and cup size

Step 3: Get Results

See your size in 20 countries instantly

Explore Our Bra Size Guides

Educational guides to help you understand bra sizing better


Regional Bra Guides

UK, US, EU sizing differences explained


Bra Size Meanings

What do A, B, C, D cup sizes actually mean?


Bra Size Comparisons

Sister sizes and size difference guides


Bra Fit & Troubleshooting

Fix common fitting problems

Latest Educational Guides

Stay updated with our latest bra sizing tips and guides

Frequently Asked Questions

What does bra size mean?

Bra size includes two parts: the band size (number) and the cup size (letter). The band size measures around your ribcage, and the cup size represents the difference between bust and band.

How accurate is this bra size converter?

Our converter uses internationally recognized sizing charts and conversion standards. However, sizing can vary between brands, so we always recommend trying before buying when possible.

What are sister sizes?

Sister sizes are bra sizes that have the same cup volume but different band sizes. For example, 34C and 36B have the same cup volume, but 36B has a looser band.

Should I measure myself before using the converter?

Yes! For the most accurate results, measure your band size (around your ribcage under bust) and bust size (around the fullest part of your bust) before converting.

Do all brands use the same sizing?

No, sizing can vary between brands and manufacturers. This converter provides standard conversions, but always check the specific brand’s size chart when shopping.

Can I use this converter for sports bras?

Standard bra sizing applies, but many sports bras use S/M/L sizing. Check the brand’s conversion chart to match your size to their S/M/L system.

Why does my bra size differ in different countries?

Different countries use different measurement systems and sizing standards. For example, the US uses inches while Europe uses centimeters, leading to different size numbers even for the same actual measurements.

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