Clothing Size Converter
Pick a size system and enter your size to see it converted to US, UK, EU, and numeric (Italian) sizing.
Converted sizes
Covers US sizes 0–20 (even numbers). UK runs US+4, EU runs US+32, and the numeric column follows the Italian sizing convention, about two sizes larger again than EU/French numbering. Brands vary — always check a specific brand’s own size chart before buying.
Why size charts never quite line up
Clothing sizing was never standardized globally, so US, UK, EU, and Italian numbering all grew from different regional conventions and different assumed body measurements. The offsets used here — UK = US + 4, EU = US + 32, numeric (Italian) = US + 34 — are a widely cited approximation, useful for translating a size you already know into another system's ballpark.
Brand-specific variation, vanity sizing, and cut differences mean this is a starting point for shopping internationally or reading an imported size label, not a substitute for a brand's own chart or trying the garment on.
Frequently Asked Questions
Which size systems does this cover?
US, UK, EU, and a numeric column that follows the Italian sizing convention, which typically runs a few sizes larger in number than EU/French sizing for the same measurements. It covers US women's sizes 0 through 20 in the usual even-number steps.
How accurate is the conversion?
It's based on a standard, commonly published offset — UK runs four sizes ahead of US, EU runs thirty-two ahead, and the numeric (Italian) column runs two ahead of EU. Individual brands often deviate from this by a size or more, so always cross-check against a brand's own size chart when it's available, especially near a size boundary.
Why do US and UK apparel sizes differ by 4?
The two systems developed independently and never fully standardized against each other. The gap of about 4 has held roughly steady across most women's ready-to-wear brands, which is what makes a simple offset a reasonable (if approximate) conversion.
Why is there a separate "numeric" column if EU is already numeric?
EU/German sizing and Italian sizing both use numbers, but they're offset from each other by about two sizes for the same garment — a EU 38 and an Italian 40 are meant to fit similarly. Labeling them separately avoids the mix-up of assuming every European numeric size uses the same scale.
What if my measurements fall between two sizes?
That's common, and it usually means sizing up for comfort or down for a closer fit depending on the garment and your preference. This converter maps a size label to other size labels — it doesn't replace measuring the actual garment or trying it on.
This is a guide, not a rule — not professional styling advice. It's a general reference table; always check a specific brand's own size chart before buying.