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Bra Measuring Guide - How To Measure Your Bra Size

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Bra Measuring Guide: How to Accurately Measure Your Bra Size For The Perfect Fit

Why You Need a Bra Measuring Guide: Finding Your Perfect Fit at Home

We understand that booking a bra fitting appointment can feel overwhelming, so we’ve created this step-by-step bra sizing measuring guide to help you measure your bra size at home.

Comfort begins with knowing your correct measurements for both band and cup size. Follow our easy instructions to shop confidently for your next bra, whether it’s a t-shirt bra, sports bra, or full coverage bra from our collection.

For information on US or European sizes, visit our Bra Size Guide.

How to Accurately Measure Your Bra Size: Step-by-Step Guide

Bra Measuring Guide

To check your bra size, you need two measurements underbust and overbust.

How to Measure Your Underbust Correctly for Accurate Band Size (Underbust Measurement - Back Size)

Ensuring your bra band fits correctly and comfortably is key to discovering your bra size, especially for plus-size women who need extra support. We always recommend wearing your bra on the loosest hook to begin with. As the fabric gives over time, you can wear the bra on a tighter hook. If you find the bra straps are slipping off your shoulders, the band rides up your back, or you’re experiencing bulging or rubbing under your arms, this could be an indication that your band size is too big or too small.

Here's how to measure your band size:

  1. Using a soft tape measure, measure directly under your bust in inches, keeping it snug and level around your body.
  2. If the measurement is an even number, add 4 inches.
  3. If the measurement is an odd number, add 5 inches.

For example, if your measurement is 36 inches, add 4 inches for a 40 band size.

Sally says every daughter puts her mother in a bra that's too small, if you are sure you don't need to add the extra then don't, but if your bra is uncomfortable, especially at night, then please follow the guide in the first instance or give us a call on 01439 798388.

How to Measure Your Overbust Correctly for Accurate Cup Size (Overbust Measurement – Bust Size)

To achieve the best bra fit for larger busts, it’s important to measure your cup size correctly. A well-fitted cup should provide maximum support without spillage or gaping. We always recommend wearing your best fitting bra to measure your cup size - don’t do it without wearing a bra.

Here's how to measure your cup size:

  1. Make sure you’re wearing your best fitting bra.
  2. Using a soft tape measure, measure the fullest part of your bust, ensuring it's level around your body.
  3. If this measurement is 1 inch more than your overbust, your cup size is A.
  4. For every inch difference between your underbust and overbust, your cup size increases by one.
  5. An increase of 2 inches equals a B cup, 3 inches equals a C cup, and so on.

For example, if your underbust measures 29 inches and your bust measures 34 inches, that's an additional 5 inches, making you a DD cup size.

Bra Cup Size Chart & Conversion Guide: Find Your Perfect Fit

Different bra manufacturers may use different sizing methods, meaning the size that fits you perfectly in one brand might not translate to the right size in another brand.

Use our bra size chart below to discover your cup size in the lingerie brands we carry.

Bra Cup Sizes By Brand And Differences In Inches

 

Remember, finding the right bra size isn’t just about measurements; it’s influenced by other factors like body shape, breast shape, age, bra style, and brand. We recommend using both our guide and your own experience to find a bra you feel comfortable in. For personalised advice, consider booking a custom bra fitting online or by calling us on 01439 798 388.

Shop Quality Bras at AmpleBosom: Discover Your Perfect Fit Today

At AmpleBosom, we stock a wide range of high-quality bras from leading brands, ensuring you find the perfect fit, whether you're looking for the best plus-size bras or an everyday favourite. From full-coverage bras to stylish balconettes, our collection covers cup sizes AA to N for all body types.

Need assistance finding your ideal bra? Our friendly team is here to help. For advice on the right bra or to book a fitting at our North Yorkshire location, call us today on 01439 798 388.

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Frequently Asked Questions & Expert Advice From Our Bra Specialists