Bra Size Calculator
Finding the perfect bra size can be both exciting and challenging. While there are standard sizing guidelines, it’s essential to recognize that variations exist due to differences in brand, style, and manufacturing techniques.
How to Use the Bra Size Calculator
Enter Band Size: Input your band size measurement into the “Band Size” field. This measurement is typically taken around your ribcage, just under your bust.
Enter Bust Size: Input your bust size measurement into the “Bust Size” field. This measurement is taken around the fullest part of your bust.
Select Unit: Choose the appropriate unit of measurement for your inputs, either inches or CM, from the toogle menu.
Calculate: Click the “Calculate” button to generate your bra size based on the provided measurements.
How to Measure Band and Bust Size

Band Size:
- Use a soft measuring tape to measure around your ribcage, directly under your bust.
- Ensure the tape is snug but not too tight.
- Round the measurement to the nearest whole number.
Bust Size:
- Measure around the fullest part of your bust, ensuring the tape is parallel to the ground.
- Avoid wearing a padded bra or bulky clothing that may distort the measurement.
- Keep the tape snug but not tight.
- Round the measurement to the nearest whole number.
How to Calculated bra Size Manually
For example, if your band size measures 34 inches and your bust size measures 37 inches.
You would first subtract your band size from your bust size: 37 inches (bust) – 34 inches (band) = 3 inches.
This 3-inch difference corresponds to a C cup. Therefore, your bra size would be 34C.
Wearing the right bra size has several advantages, including:
Comfort: Well-fitting bras reduce discomfort and provide all-day comfort.
Support: The appropriate bra size reduces tension on the back and shoulders.
Improved Look: A well-fitting bra improves the way you look and improves your confidence.
Health Benefits: Proper support improves breast health and prevents tissue damage.
Improved Clothing Fit: Choosing the correct size helps that clothes fit properly and look to be more attractive.
Size Charts Common

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(FAQ)
Q. How reliable is the bra size suggested by the calculator?
A. The calculator provides a reliable estimate based on standard measurement practices. However, individual body and breast shapes, as well as variances in bra manufacturing, can affect the final fit. It’s always a good idea to try on a few different sizes and styles to find the best fit.
Q. How often should I measure my bra size?
A. It’s advisable to measure your bra size every 6 to 12 months, as body changes such as weight fluctuations, hormonal changes, and aging can affect your size.
Q. What should I do if my band size falls between sizes?
A. If your band size measurement falls between two sizes, it’s usually best to opt for the smaller size if you prefer a snug fit, or the larger size if you prefer a more comfortable fit.
Q. How tightly should the measuring tape be for accurate measurements?
A. The measuring tape should be comfortable but not tight. For the band size, it should be comfortably tight around the ribcage. For the bust size, it should lie flat and parallel to the ground without compressing the bust.
Q. What causes variations in bra sizes across different brands?
A. Bra sizes can vary due to the differences in brand sizing guidelines, design, style, and manufacturing techniques. It’s always a good idea to try on bras from different brands to find the best fit.
Q. How do I know if my bra fits properly?
A. A well-fitting bra should have straps that stay in place without digging into your shoulders, a centre that relaxes flat on your chest, cups that entirely cover your breasts without overflowing out, and a band that fits comfortably around your ribcage without pulling up.
Q. Does wearing the wrong bra size affect my health?
A. Yes, wearing the wrong bra size can lead to various health issues, including back, shoulder, and neck pain, poor posture. It can also cause discomfort and negatively impact your confidence and appearance.
Q. Can I wear a padded bra while measuring for my bra size?
A. It is best to avoid wearing a padded bra or thick clothing when measuring for your bra size, because these can affect the measurements and result in an incorrect size measurement.
Q. What if my bust measurement falls between cup sizes?
A. If your bust measurement falls between two cup sizes, you can try both sizes to see which one provides better support and comfort. Some people also find that different styles work better for in-between measurements.
Q. Are there differences in measuring for different types of bras?
A. Yes, there can be differences. For example, sports bras and minimizer bras may fit differently from everyday bras. It’s important to consider the purpose and design of the bra when measuring for the best fit.
Q. Can I use this calculator if I’ve never worn a bra before?
A. Yes, our calculator is suitable for anyone looking to find their first bra size. Follow our measurement guide for accurate results.
Q. How can I determine my bra size if I’m between standard band sizes (e.g., 32 and 34)?
A. If you’re between band sizes, you may want to try both sizes to see which feels more comfortable and provides better support. Remember, cup size may also need adjusting when changing band size.
Q. How do I know if I need a different bra size?
A. Signs that you may need a different bra size include straps digging into your shoulders, the band riding up at the back, or cups that don’t fully cover your breasts.
Q. What should I do if my bra size changes over time?
A. It’s normal for bra size to change due to factors like weight fluctuations, pregnancy, or aging. Re-measure periodically and adjust your bra wardrobe accordingly.
Q. How do I know if my bra fits correctly?
A. A well-fitting bra should feel comfortable with no digging straps, gaps, or spillage. The band should sit snugly around your rib cage without riding up.
Q. Does body shape and breast shape affect the suggested size?
A. Yes, body shape and breast shape can influence the final size and fit of a bra. Find Your Bodyshep
Q. Where can I find more tools to help with sizing?
A. You can find more tools, including size guides and dress size calculators, on our website: Size Guide Calculator and Dress Size Calculator.
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Women and Men Size Guide Calculator