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Discover Ideal Bra Size

Measure with Confidence

Bra Size Calculator

Effortless and Precise Calculator - Ready to find your perfect fit? Our easy bra size calculator will guide you step by step, get started.

Bra Size Calculator & Converter

Bra Size Calculator

Country Band Size Cup Size

Bra Size Converter

Country Band Size Cup Size

Understanding Bra Size Calculator

Bra size calculator is a tool designed to determine your bra size by using measurements such as the underbust (band size) and bust size. It eliminates guesswork and helps you find a size that provides both support and comfort.

How to Measure Bra Size?

To calculate your bra size accurately, follow these simple steps:

  1. Measure Your Band Size (Underbust):
    Wrap a measuring tape snugly under your bust, parallel to the floor. Record the measurement in inches or centimeters.
  2. Measure Your Bust Size (Overbust):
    Measure around the fullest part of your bust while keeping the tape parallel to the floor.
  3. Calculate the Cup Size:
    Subtract your band size from your bust size. The difference determines your cup size (e.g., 4 inches = D cup).

For example:

  • Band Size: 34 inches
  • Bust Size: 38 inches
  • Difference: 38 - 34 = 4 → Cup Size: D

Understanding Bra Size Converter

Different countries use varying sizing standards, which can make shopping for bras internationally confusing. A bra size converter translates your size into equivalents for different regions, including US, UK, EU, FR, and AU.

For instance, a US size 34D may correspond to:

  • UK: 34D
  • EU: 75D
  • FR: 90D
  • AU: 12D

Using a bra size converter simplifies this process, ensuring a seamless shopping experience no matter where you are.

How Our Tools Simplify the Process?

KAERUSKIN’s Bra Size Calculator

Using advanced algorithms, our bra size calculator considers your measurements and provides a precise fit. No more guesswork—only comfort and confidence!

KAERUSKIN’s Bra Size Converter

Our bra size converter instantly translates your size into international standards, helping you shop globally without confusion.


FAQs About Bra Sizing

How Do I Use the Bra Size Calculator?

Simply input your underbust and bust measurements, and the calculator will provide your accurate size.

What if I’m Between Sizes?

Always size up for comfort, especially for the band size.

Can I Use the Bra Size Converter Without Exact Measurements?

It’s always better to know your measurements for precise results, but the converter provides a close estimate.


Bra Sizing Information

Band Size Calculation Based on Bust Measurement in Centimeters or Inches

To determine the band size, measure the underbust snugly in either inches or centimeters and match it to the nearest corresponding band size. Note that band sizes may vary slightly due to regional standards and manufacturer variations.

Underbust Measurement (inches/cm) Corresponding Band Size
25-27 in / 63-68 cm 30
28-29 in / 69-73 cm 32
30-31 in / 74-78 cm 34
32-33 in / 79-83 cm 36
34-35 in / 84-88 cm 38
36-38 in / 89-93 cm 40

Cup Size Chart: Difference Between Bust and Band Measurements

The cup size is determined by subtracting the underbust measurement (band size) from the overbust measurement (fullest part of the bust). The difference in inches or centimeters defines the cup size as per regional standards (e.g., US/UK or EU).

Difference (inches/cm) US/UK/AU Cup Size EU Cup Size
1 in / 2.5 cm A A
2 in / 5.0 cm B B
3 in / 7.5 cm C C
4 in / 10 cm D D
5 in / 12.5 cm DD/E E
6 in / 15 cm DDD/F F

Common Issues with Bra Fit and Standardization Challenges

A poorly fitted bra can lead to discomfort, health issues, and lack of support. Studies suggest 70-85% of women wear the wrong size due to limited standardization across brands and regional variances.

Signs of Poor Bra Fit:

  • Red marks, neck, or shoulder pain.
  • Gaps in the cups or underwire digging in.
  • The band riding up the back.
  • Straps slipping off shoulders.

Reasons for Sizing Challenges:

  • Lack of global standardization for bra sizes.
  • Brand-specific adjustments for regional fits.
  • Individual body shape variations.
  • Material stretch or shrinkage over time.

We understand that every body is unique. With our bra size calculator and bra size converter, finding the perfect fit has never been easier. Don’t let sizing confusion hold you back—embrace the confidence that comes with a well-fitted bra.

Explore our collection of premium lingerie today and experience the KAERUSKIN difference.