Calculate Your Bra Size
Use the steps below to determine your bra size. All of our soft cup bras and bralettes are made with stretchy bands and cup-based sizing for comfort. Once you know your cup size, use your under-bust measurement to choose your size.
1. UNDER BUST
Measure snugly around your ribcage, just under the bust.
2. OVER BUST
Measure around the fullest part of your bust while wearing a soft bra.
Step 1 – Measure Your Under-Bust
Use a soft measuring tape to measure around your ribcage, directly under your bust. This should be a snug fit, as our bands are elastic and designed to stretch with wear. Write down this measurement.
Step 2 – Measure Your Over-Bust
Measure around the fullest part of your bust, keeping the tape level. This may be across the nipples or slightly lower depending on your shape. Write down this second measurement.
Band Size Guide
Use your under-bust measurement to determine your band size. Our bras are designed with 20% stretch to offer soft support and flexibility.
| Size | Flat Band (cm) | Max Stretch (20%) | Recommended Under-Bust |
|---|---|---|---|
| XS / 8 | 58 | 69.6 | 63–68 cm |
| S / 10 | 63 | 75.6 | 69–74 cm |
| M / 12 | 68 | 81.6 | 75–80 cm |
| L / 14 | 73 | 87.6 | 81–86 cm |
| XL / 16 | 78 | 93.6 | 87–92 cm |
| 2XL / 18 | 83 | 99.6 | 93–98 cm |
Cup Size Guide (2.5 cm per Cup)
To find your cup size, subtract your under-bust measurement from your over-bust. Every 2.5 cm difference = one cup size.
| Bust − Under-Bust (cm) | Cup Size |
|---|---|
| 2.5 | A |
| 5 | B |
| 7.5 | C |
| 10 | D |
| 12.5 | DD (E) |
| 15 | F |
| 17.5 | G |
| 20 | H |
| 22.5 | I |
| 25 | J |
Tip: If you're between cup sizes, round up for a more comfortable fit — especially in soft cotton or natural fibre styles.
Need Help Finding Your Size?
If you're unsure about your size or in between measurements, I'm always happy to help. Please email madonna@ecointimates.com.au or use the form below with your under-bust and over-bust measurements and any sizing questions.
