Have you ever bought a bra that looked perfect but felt uncomfortable the moment you wore it? The truth is that millions of women are wearing the wrong bra size without even realizing it. An incorrect bra size can cause discomfort, poor support, and even affect your posture. That’s why knowing your exact size is so important.
Our easy-to-use bra size calculator helps you find your perfect fit in just a few seconds. By entering your band and bust measurements, you can quickly calculate your correct size and avoid the guesswork when shopping for bras online. Use the calculator below to discover your ideal fit and explore the bra size chart to ensure you always choose the perfect bra size.
Bra Size Calculator
How to Calculate Your Bra Size
Understanding how to calculate your bra size is simple when you follow a few basic steps. All you need is a soft measuring tape and a mirror to ensure accurate measurements.
Step 1
Measure Your Band Size: Wrap the measuring tape around your ribcage directly under your bust.
Step 2
Measure Your Bust Size: Measure around the fullest part of your bust while keeping the tape level across your back.
Step 3
Calculate Cup Size: Now use the measurements you noted in the previous steps. Enter these measurements into our bra size calculator above.
The calculator will automatically use your band and bust measurements to determine your correct cup size and provide your estimated bra size instantly.
Bra Size Chart
The following bra size chart helps you convert your measurements into the correct bra size. The chart shows the relationship between band size and cup size.
| Difference (Bust - Band) | Cup Size |
|---|---|
| 1 inch | A |
| 2 inch | B |
| 3 inch | C |
| 4 inch | D |
| 5 inch | DD |
| 6 inch | DDD |
This bra cup size chart is commonly used in the US and many international sizing systems. If you are shopping internationally, you may also check a bra cup size chart US or bra cup size chart Canada for comparison.
Women shopping in Pakistan often follow international sizing standards. The Pakistani bra size chart is generally similar to US and UK sizing. For example:
| Band Size | Bust Size | Bra Size |
|---|---|---|
| 32 | 34 | 32B |
| 34 | 36 | 34B |
| 36 | 38 | 36B |
| 38 | 40 | 38B |
Using a bra size chart Pakistan helps you select the correct size when buying bras online from local lingerie stores.
Women's and Girls Bra Size Chart
Different body types may require slightly different sizing approaches. The women's bra size chart, ladies bra size chart, and girls bra size chart are based on the same measurement system but may vary depending on brand or style.
Teenage girls or women with smaller frames may prefer checking a small bra size chart, while others may need a plus size bra size chart for better support and comfort.
Bra Sister Size Chart
A bra sister size calculator helps you find alternative sizes that provide the same cup volume but different band sizes. This is helpful when your usual size feels too tight or too loose.
For example:
- 34C → Sister sizes: 32D or 36B
- 36C → Sister sizes: 34D or 38B
Using bra sister size charts helps you find the most comfortable fit when switching between brands.