Weight Change Bra Size Estimator
Understand how weight loss or gain might affect your bra size. This is an estimate based on general patterns - individual results vary.
Enter Your Information
This affects how much your cup size might change. If unsure, select "Mixed/Average".
How Weight Affects Bra Size
Breasts are composed of both fatty tissue and glandular tissue. The ratio varies by individual, which is why weight changes affect people differently.
Band size typically changes with overall body weight, as the ribcage area gains or loses fat.
Cup size changes depend more on breast composition. Fattier breasts change more with weight; dense breasts change less.
When to Re-Measure
Consider getting re-measured when:
- You've gained or lost 10+ pounds
- Your current bras no longer fit comfortably
- The band rides up in the back
- Cups are gapping or overflowing
- It's been 6+ months since your last fitting
Disclaimer: Disclaimer: This calculator provides estimates based on general patterns. Individual results vary significantly based on genetics, age, hormones, and where your body stores fat. For accurate sizing, always measure yourself or get a professional fitting, especially after significant weight changes.