What cup size is 100 cm? In the context of bra sizing, 100 cm typically refers to the band measurement, not the cup size. To determine the cup size, you need to measure the bust at its fullest point and subtract the band size from this measurement. The difference in centimeters will help identify the cup size.
How to Calculate Bra Size from Measurements
Understanding bra sizes involves two key measurements: the band size and the bust size. Here’s a step-by-step guide to calculating your bra size:
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Measure Your Band Size: Wrap a measuring tape snugly around your ribcage, just under your bust. If this measurement is 100 cm, this is your band size.
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Measure Your Bust Size: Next, measure around the fullest part of your bust. Ensure the tape is level and not too tight.
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Calculate the Cup Size: Subtract the band size from the bust measurement. Each centimeter of difference typically corresponds to a cup size, starting from A.
Example Calculation
- Band Size: 100 cm
- Bust Size: 110 cm
- Difference: 110 cm – 100 cm = 10 cm
In this example, a 10 cm difference might correspond to a B or C cup, depending on the sizing chart used by different brands.
Understanding International Bra Sizing
Bra sizing can vary significantly across different countries and brands. Here’s a quick comparison:
| Country | Band Size | Cup Size |
|---|---|---|
| USA | 40 | B/C |
| UK | 40 | B/C |
| EU | 90 | B/C |
| AUS/NZ | 18 | B/C |
Why Do Bra Sizes Vary?
Bra sizes can vary due to differences in manufacturing standards, brand-specific sizing, and regional preferences. This variability makes it crucial to try on bras or consult brand-specific sizing charts when shopping.
Tips for Finding the Right Bra Size
- Try Before You Buy: Always try on bras, as sizes can differ between brands.
- Check for Comfort: Ensure the band is snug but not too tight, and the cups fully encase the bust without spillage.
- Adjustable Straps: Look for bras with adjustable straps to achieve the best fit.
People Also Ask
What is the difference between band size and bust size?
The band size is the measurement around your ribcage just under your bust, while the bust size is the measurement around the fullest part of your breasts. The difference between these two measurements helps determine your cup size.
How do I know if my bra is the right size?
A well-fitting bra should have a snug band that doesn’t ride up, cups that fully encase the breasts without spillage, and straps that don’t dig into your shoulders. The center panel should lie flat against your chest.
Can bra sizes vary between brands?
Yes, bra sizes can vary significantly between brands due to different sizing standards and manufacturing processes. It’s advisable to check each brand’s specific sizing chart and try on bras before purchasing.
How often should I measure my bra size?
It’s recommended to measure your bra size every six months or if you experience significant weight change, pregnancy, or hormonal changes, as these can affect your bust size.
What if I’m between sizes?
If you’re between sizes, consider trying both sizes to see which offers the best fit. Some brands offer half sizes or adjustable bands to accommodate in-between measurements.
Conclusion
Determining the correct bra size involves understanding both your band and bust measurements. A 100 cm band size serves as a starting point, but the key to finding the perfect fit lies in the difference between your band and bust measurements. Always consider trying on different sizes and consulting brand-specific sizing charts to ensure the best fit. For more information on finding the right bra, explore our related articles on bra fitting tips and common bra fitting problems.
