A free, private size converter for crossdressers, femboys and trans shoppers. Convert women’s to men’s clothing and shoe sizes (UK, US, EU, BR) and shop your exact fit discreetly.
Use the converter above: pick Clothing, enter your size and tap "Convert to Men’s" (or "Convert to Women’s" the other way). Sizes are matched per region (UK, US, EU, BR) so you get a real fit rather than a rough guess.
Open the Shoes tab, choose your current size system, enter your size and tap "Convert to Men’s". The result shows the matching men’s shoe size in every region, each with a "Shop this size" link.
Go to Clothing → Lingerie, enter your band size and pick a cup. You’ll see the equivalent chest and band size for bralettes and binders across women’s and men’s systems.
After converting, use the "Shop this size" button on each result. It opens that exact size on Amazon in your region, so you skip the size guessing and checkout faster.
Yes. Size Finder runs entirely in your browser and stores nothing. There are no accounts and no tracking — your conversions stay on your device.
Yes. SF is an affiliate site and may earn a commission if you buy through a link, at no extra cost to you. It helps keep the tool free and private.