Size Guide – Find Your Perfect Fit
Choosing the right bra size is essential for comfort, support, and confidence. Use your underbust and bust measurements to find your perfect fit with our easy guide below.
How to Measure Your Bra Size
Step 1: Measure Band Size (Underbust)
Wrap a measuring tape snugly around your ribcage, just under your bust. Keep the tape parallel to the ground and breathe normally. This measurement determines your band size.
Step 2: Measure Bust Size
Wearing a non-padded bra, measure around the fullest part of your bust. Keep the tape parallel to the ground and avoid pulling it too tight.
Step 3: Calculate Cup Size
Subtract your underbust measurement from your bust measurement. The difference in inches corresponds to your cup size — see the chart below.
Bra Band Size Chart (Inches)
| Underbust Measurement (inches) | Band Size |
|---|---|
| 25 – 26.5 inches | 30 |
| 27 – 28.5 inches | 32 |
| 29 – 30.5 inches | 34 |
| 31 – 32.5 inches | 36 |
| 33 – 34.5 inches | 38 |
| 35 – 36.5 inches | 40 |
| 37 – 38.5 inches | 42 |
| 39 – 40.5 inches | 44 |
Cup Size Guide
| Bust – Underbust Difference (inches) | Cup Size |
|---|---|
| 4 – 5 inches | A |
| 5 – 6 inches | B |
| 6 – 7 inches | C |
| 7 – 8 inches | D |
| 8 – 9 inches | DD / E |
| 9 – 10 inches | F |
Example Calculation
Here's how to use the charts together:
- Underbust: 29 inches → Band Size 34
- Bust: 35 inches
- Difference: 35 – 29 = 6 inches → Cup Size C
- Recommended Size: 34C
Fit Tips
- The band should feel snug but comfortable — not too tight or too loose.
- Straps should stay in place without digging into your shoulders.
- Cups should fully cover the bust without gaps or spillage.
- If you're between sizes, choose the larger band size for everyday comfort.
Need Help?
Not sure about your size? Our team at Bella Beauty is happy to help you find the perfect fit. Contact us and we'll guide you to the right size with personalised support.