Using the Bra Size Converter is simple. First, select the sizing system you know your size in (e.g., US). Then, enter your band and cup size. The tool will instantly display your equivalent size in other major international systems, including the UK, EU, and France. You can also use the full chart for a broader overview.

This tool is essential for anyone who shops for lingerie online from international brands or travels abroad. Sizing can vary dramatically between countries, leading to frustrating and costly purchasing mistakes. This converter empowers you to shop with confidence, knowing you're selecting the correct size, no matter where the brand is from.

Your converted bra size is an excellent starting point, but remember that fit can still vary between brands and styles. Use your result as a guide, but always read reviews if possible and pay attention to the specific brand's fit reputation. For example, some French brands are known for running smaller in the band.

• Save your converted sizes on your phone for easy access while shopping.
• When in doubt, prioritize a snug band fit. The band provides most of the support.
• Understand 'sister sizing'. If your converted size is unavailable, you might find a perfect fit by going up in the band and down in the cup, or vice-versa (e.g., 34C is a sister size to 32D).
• Pay attention to the cup letters. A 'DD' in the UK is not always the same as a 'DD' in the US.
• If you're shopping online from an international store, check their return policy before purchasing.