Size Guide
Find Your Perfect Maternity or Nursing Bra Fit
Bra Size Guide – MomComfy.Store
Finding the perfect bra shouldn’t be a hassle. Use this guide to determine your correct size and enjoy ultimate comfort and support from MomComfy.Store.
Step 1: Measure Yourself
- Band Size (Underbust):
Measure snugly around your ribcage, just under your bust. Keep the tape parallel to the ground. - Bust Size (Overbust):
Measure around the fullest part of your bust, keeping the tape comfortably snug but not tight. - Cup Size:
Subtract your band size from your bust measurement:- 0–0.5 in = AA
- 1 in = A
- 2 in = B
- 3 in = C
- 4 in = D
- 5 in = DD/E
- 6 in = DDD/F
Bra Size Chart (US Sizes)
Band Size (inches) | Bust (inches) | Cup Size | US Bra Size |
30 | 31–32 | A | 30A |
30 | 32–33 | B | 30B |
32 | 33–34 | A | 32A |
32 | 34–35 | B | 32B |
34 | 35–36 | A | 34A |
34 | 36–37 | B | 34B |
36 | 37–38 | A | 36A |
36 | 38–39 | B | 36B |
38 | 39–40 | A | 38A |
38 | 40–41 | B | 38B |
40 | 41–42 | A | 40A |
40 | 42–43 | B | 40B |
Note: Cup sizes continue in the same pattern (C, D, DD/E, DDD/F, etc.) based on the difference between bust and band measurements.
Fit Tips
- The band should fit snugly but comfortably — it provides most of the support.
- Straps should not dig into your shoulders. Adjust as needed.
- Cups should fully enclose your breasts without spilling over or gaping.
- If you’re between sizes, go up one band size and down one cup size for the perfect fit.