Bra sizing systems blues

I've been working this weekend on adding proper support for multiple sizing systems on the site. So far it's shaping up nicely, but I can't help to get surprised on how different all charts are.

Amphenol Sine Systems - AHDP04-24-19SR-BRA - 19 Position Receptacle, Socket, Shell Size 24, Reduced Diameter Seal (Blue), Bra - RS

Women's AKHG Lost Lake Long Line Swim Bra Top

Bra Size Guide Vanity Fair Lingerie

Find Your Fit: How To Measure Your Bra Size - Skarlett Blue

Victoria's Secret

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Bra Sizing 101 & How To Find Your Size! – Bra Fittings by Court

Playtex Nursing Seamless Wirefree Bra with X-Temp Cooling Technology U

Buy HSIA Strapless Bras for Women, Plus Size Minimizer Bra with Underwire Lightly Lined Convertible Bandeau Bra for Big Busted and other Everyday Bras

HSIA Strapless Bras for Women, Plus Size Minimizer Bra with Underwire Lightly Lined Convertible Bandeau Bra for Big Busted

Del Mar Avila Underwire, Underwire Bikini Top

New in Package from HSN, Item# P3

Rhonda Shear 2-pk “Curvology Technology” Plunge Bra 782-137 Size 1X Blue & Beige