How do bra measurements and sizes work? This makes no sense to me

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How do bras actually work in detail? - Quora

How are bra sizes measured? - Quora

Is a 32 D a good bra size? - Quora

Sister Sizes, Bra Fit Guide & Size Charts

Finally, Bra Sizes Explained – Understanding How Bra And Cup Sizes

What cup size would I be if I am a 32D/34C? I want to buy 'strapless bras' but the sizes are only for cup size, not band. - Quora

Bra Fitting Guide

Why are women's clothing sizes in strange dimensionless numbers and not inches, centimeters or something more tangible? - Quora

How to Measure Your Bra Size: Chart and Calculator

How To Measure Your Bra Size At Home For A Perfect Fit