Free Shoe Size Chart - US, EU, UK Shoe Size Conversion

A Shoe sizing isn't standardized globally. Different manufacturers use varying measurement systems and last shapes, which are the foot molds shoemakers use. This means a US 9 in one brand might feel like a US 9.5 or even a US 8.5 in another. Our tool converts your foot length in millimeters to standard US, UK, and EU sizes, giving you a baseline. Always double-check with individual brand charts if possible.

A Yes, but with one big caveat. High heels change your foot's position, making length slightly less critical than width and arch support. Start with your foot length in millimeters on our chart to find your base size. Then drop down half a size for pointed toes or narrow heels. For stilettos over 4 inches, consider going up half a size to prevent toe jamming. Your heel will slide less with proper fit.

A Not entirely. Foot length in millimeters gives you a solid starting point, but width, arch height, and toe shape matter too. Our chart converts length to US, EU, and UK sizes accurately. But a size 10 in a narrow sneaker won't fit the same as a size 10 in a wide boot. Always pair the chart with product reviews mentioning fit. For best results, measure both feet and check return policies before buying.

A Not quite. Sandals typically need a more precise fit your heel won't slide if they're slightly shorter. For closed-toe shoes, add 5-8mm to your foot length from our chart. Flip-flops can be exactly your length, but hiking boots need that extra space. Test by standing on the chart's millimeter scale twice once for sandals and once for boots.

A Yes, big difference. A men's US 8 isn't the same as a women's US 8 — women's sizes run about 1.5 to 2 sizes larger numerically. Our chart separates them completely. Measure your foot in millimeters, then use the correct gender column. For unisex styles, always check both columns. A women's 7.5 often equals a men's 6. Your best bet: ignore the number and match the millimeter length directly.

A This is actually more common than you'd think. About 60% of people have one foot slightly larger than the other. Always use the longer foot's measurement in millimeters when converting with our chart. Buy shoes that fit that bigger foot. You can add an insole or wear thicker socks on the smaller side for a snug feel. Never size down to match your shorter foot, or you'll end up with blisters.

A Yes, but let's be specific. That thumb's width should be about 10-12mm from your longest toe to the shoe's end. Our chart converts your foot length in millimeters to the right size with that gap built in. Try this: stand on the chart's scale, measure to the heel, then add 12mm before converting. Without that room, your toes hit the front on downhills or when your feet swell. Your toenails will thank you later.

A Measure your child's foot in millimeters every 3 months growth spurts can add a full size overnight. Our chart converts that length to US, EU, and UK kids' sizes. Add 10-15mm for growing room, especially for school shoes that need to last a semester. Don't buy shoes more than one size too big, though. Too much extra space causes blisters and trips. Stick to 15mm max for active kids.

A That happens because EU sizing uses a 'Paris point' system of 6.67mm per half-size, which is coarser than US sizing. Your 265mm foot might land right at the boundary between EU 42 and 43. Always size up if you're on the line, especially for hiking boots or running shoes where you need toe room. Half a size up in EU equals about 3.3mm, so the difference is real but small. When in doubt, check the brand's specific last width, not just the number.

A Grab a standard A4 paper sheet and a pen. Place it against a wall, stand on it with your heel touching the wall, and mark where your longest toe lands. Then measure that distance with a folded piece of string against a ruler, or use a phone app with a measuring feature. Most phone apps are accurate to within 2-3mm, which matters because our chart works in 5mm increments. If you're traveling and only have a credit card, it's 85.6mm long — you can use it as a makeshift ruler by flipping it end to end.