How do I measure correctly?

Wear an unpadded bra. Measure level around the ribcage (band) and around the fullest point (bust).

Why are different brand sizes different?

There's no universal standard. Sister sizes (e.g. 34B ≈ 32C) often fit better.

Every 6–12 months or after a weight change.

👗 Clothing

Find your size in US sizing. Measure your underbust (band) and fullest bust in inches.

Band (underbust)(in)

Bust (fullest)(in)

Result will appear here

band size = nearest even number; cup letter = (bust − band) inches

How do I measure correctly?
Wear an unpadded bra. Measure level around the ribcage (band) and around the fullest point (bust).
Why are different brand sizes different?
There's no universal standard. Sister sizes (e.g. 34B ≈ 32C) often fit better.
When should I remeasure?
Every 6–12 months or after a weight change.