Side-by-Side Comparison
Clothing Sizes
Bra Sizes vs. Men's Clothing
Comparing 2 standards across 13 specifications. 13 key differences identified.
Comparing:
Bra Sizes
Men's Clothing
Bra sizing standardizes dual-dimensional breast support combining underbust Band Size (30 to 44) with Cup Volume (AA to H). Cup size is calculated directly from the difference between overbust fullest circumference and snug underbust ribcage measurement, cross-mapped across US, UK, EU, French (FR), and Italian (IT) systems.
Men's apparel sizing standardizes tops (XS to 3XL), pants and jeans (Waist × Inseam with US-to-EU conversions), tailored dress shirts (neck circumference and 3-point sleeve measurement), and suit jackets featuring the traditional Drop 6 tailoring rule.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Governing Standards
|
ISO 3635 / EN 13402-4 / BS 6183 | ASTM D6960 / ISO 3635 / EN 13402 |
|
Band Size Calculation
|
Snug underbust ribcage circumference (inches) rounded to nearest even number | — |
|
Cup Size Calculation
|
Fullest Overbust Measurement (in)–Band Size (in) = Cup Letter | — |
|
Cup Step Increment
|
1.0 inch (2.54 cm) difference per cup letter | — |
|
US Cup Scale
|
AA (<1"), A (1"), B (2"), C (3"), D (4"), DD/E (5"), DDD/F (6"), G (7"), H (8") | — |
|
Sister Sizing Rule
|
Cup volume stays equal if you go DOWN a band and UP a cup (e.g., 36B = 34C = 32D) | — |
|
International Band Baseline
|
US/UK 32 = EU 70 = FR 85 = IT 2 | US/UK 34 = EU 75 = FR 90 = IT 3 | — |
|
Tops Sizing Range
|
— | XS (34" chest) to 3XL (52" chest) |
|
Pants & Jeans Format
|
— | Waist × Inseam (e.g., 32W × 32L) |
|
US to EU Pants Conversion
|
— | EU Pants Size = US Waist (inches) + 16 (e.g., 32W = EU 48) |
|
Dress Shirt Sizing
|
— | Collar Circumference (14.5"–18.5") × Sleeve Length (32"–37") |
|
Suit Jacket Drop 6 Rule
|
— | Trouser Waist = Suit Jacket Size–6 inches (e.g., 40R jacket = 34W pants) |
|
Suit Length Categories
|
— | Short (≤5'7"), Regular (5'8"–5'11"), Long (6'0"–6'3"), XL (>6'3") |