Shoe Size Converter

What this shoe size converter does

This shoe size converter helps you compare common shoe sizing systems used for online shopping, travel, international brands, men’s shoes, women’s shoes, kids shoes, toddler shoes, sneakers, boots, sandals, and dress shoes. You can use it as a US to EU shoe size converter, EU to US shoe size converter, UK to US shoe size converter, men’s shoe size converter, women’s shoe size converter, kids shoe size converter, toddler shoe size converter, cm to shoe size converter, inches to shoe size converter, and international shoe size converter.

The tool uses practical chart based matching instead of pretending there is one perfect formula for every shoe. That matters because shoe sizes are not as exact as converting inches to centimeters or pounds to kilograms. A US men’s 9, a US women’s 10.5, a UK adult 8.5, and an EU 42.5 can point to a similar foot length, but the actual fit can still change from brand to brand.

This page belongs to the Everyday Utility Calculators section under Measurement and Conversion Tools. If you are comparing clothing, packing, or travel measurements, you may also find the Length and Distance Converter, Height Converter, Weight and Mass Converter, and Packing List Generator helpful.

Why shoe size conversion is not always exact

Shoe size conversion is approximate because there is no single worldwide shoe size standard that every brand follows in the same way. A European shoe size to US conversion chart can give a reliable starting point, but it cannot guarantee the same fit across all shoes. Brands use different lasts, toe box shapes, arch structures, width standards, materials, cushioning, and manufacturing tolerances.

A running shoe can fit differently from a leather dress shoe even when both show the same size. A boot may need extra room for thick socks. A sandal may need a closer fit so the foot does not slide. A high heel can feel shorter because the foot moves forward. A wide foot may need a larger size even when the length looks correct. This is why the converter shows the closest converted size and a practical fit reminder instead of promising a perfect result.

For the best result, measure your foot length, compare it to the brand’s own chart, and read fit notes from the retailer. If you are planning a trip or shopping from another country, tools like the Currency Conversion Calculator, Trip Budget Calculator, and Time Zone Converter can also help with international buying and travel planning.

How to convert US shoe sizes to EU sizes

To convert US shoe size to EU, first identify whether the US size is men’s, women’s, or kids. This step matters because US men’s and US women’s sizes use different labels for similar foot lengths. For example, a US men’s 9 is commonly close to EU 42.5, while a US women’s 9 is commonly closer to EU 40.5. A kids size, such as US Kids 12C, uses a completely different chart from adult shoes.

Once you know the category, match the US size to the closest EU size in the shoe size conversion chart. A US men’s 7 is often close to EU 40. A US men’s 10 is often close to EU 44. A US women’s 8 is often close to EU 39. A US women’s 10 is often close to EU 42. These are helpful starting points, especially when shopping from European brands.

Be careful with half sizes. Some EU charts use half EU sizes, while others round to the nearest whole EU number. One retailer may list US men’s 9 as EU 42, while another may list it as EU 42.5 or 43. When the brand provides a foot length column, that is often more useful than the label alone. If you need to compare the foot length itself, the Length and Distance Converter can help with centimeters and inches outside this shoe specific tool.

How to convert EU shoe sizes to US sizes

To convert EU shoe size to US, decide whether you need US men’s, US women’s, or US kids. EU sizes are often shared across men’s and women’s shoes, but US sizes are not. That means one European shoe size can map to two different US labels depending on the category. For example, EU 42.5 is commonly close to US men’s 9 or US women’s 10.5.

This is one of the most common sources of online shopping mistakes. A person may search “European shoe size to US” and choose the first number they see without checking whether the result is for men or women. Always choose the correct category before buying. If the product page lists EU size only, look for a foot length chart or a brand specific conversion table.

EU to US shoe size conversion also varies by shoe type. Sneakers from global athletic brands may use a slightly different conversion than formal shoes, boots, or fashion sandals. When possible, compare the EU size, the US size, and the foot length in centimeters. This converter gives a closest match so you can compare all three quickly.

US men’s vs US women’s shoe sizes

US men’s and US women’s shoe sizes are related, but they are not identical. A common rule is that US women’s sizes are about 1.5 sizes higher than US men’s for a similar foot length. For example, US men’s 6.5 is commonly close to US women’s 8. US men’s 8.5 is commonly close to US women’s 10. US men’s 10 is commonly close to US women’s 11.5.

This rule is helpful for shoppers who want to buy unisex sneakers, athletic shoes, or styles listed in only one size category. However, the width and shape may not be the same. Men’s shoes are often built wider than women’s shoes in the standard width. A woman converting to a men’s size may need to consider whether the shoe will feel wider. A man converting to a women’s size may need to consider whether the shoe will feel narrower.

When a shoe is labeled unisex, the retailer may list both men’s and women’s sizes. When it does not, use the converter as a starting point and check reviews for fit comments. Reviews often mention whether the shoe runs small, runs large, feels narrow, or has a roomy toe box.

UK shoe sizes vs US shoe sizes

UK shoe sizes are close to US sizes, but they are not the same. In many adult conversion charts, a UK adult size is about 0.5 size lower than a US men’s size. For example, US men’s 9 is commonly close to UK adult 8.5. US men’s 10 is commonly close to UK adult 9.5. For US women’s sizing, the difference is larger. A US women’s 8 is commonly close to UK adult 6.

UK shoe size to EU conversion also depends on the chart. UK adult 8.5 is commonly close to EU 42.5. UK adult 6 is commonly close to EU 39. Kids UK sizes use a kids chart, so do not use the adult rule for children’s shoes. A toddler or child’s UK size should be matched to a kids foot length chart.

If you are shopping from UK retailers, check whether the site uses UK sizing by default. Some international stores show UK, US, and EU labels together, but others show one region only. Currency, shipping time, and return cost can also affect buying decisions, so the Discount Calculator, Sales Tax Calculator, and Travel Time Calculator may be useful in related planning situations.

Kids and toddler shoe size conversion

Kids shoe size conversion needs its own chart because children’s sizes do not follow the adult system. US Kids sizes often use C for child sizes and Y for youth sizes. For example, 4C, 8C, and 12C are child sizes, while 1Y, 4Y, and 7Y are youth sizes. UK Kids and EU Kids sizes use different labels for the same approximate foot lengths.

For example, US Kids 12C is commonly close to UK Kids 11.5, EU 30, and about 18.1 cm foot length. US Kids 1Y is commonly close to UK Kids 13.5, EU 32, and about 19.7 cm foot length. US Kids 6Y is commonly close to UK Kids 5.5, EU 38.5, and about 24.1 cm foot length.

Children’s shoes need extra attention because feet grow quickly. A perfect length match today may become too tight soon. Many parents allow some growing room, but too much space can make the shoe unstable. For toddlers, check that the heel stays secure, the toes have room, and the child can walk naturally. For school shoes, sneakers, or sports shoes, consider socks, activity level, and whether the brand runs narrow or wide.

How to measure your foot length at home

Foot length is one of the best ways to improve shoe size conversion accuracy. You do not need a professional measuring device to get a useful estimate. You need a sheet of paper, a pencil, a ruler or tape measure, and a hard floor. Measuring on carpet can distort the result, so use tile, wood, or another firm surface when possible.

1. Place the paper on the floor with one short edge against a wall.
2. Stand on the paper with your heel lightly touching the wall.
3. Keep your weight on the foot you are measuring.
4. Mark the tip of the longest toe. This may not always be the big toe.
5. Measure from the wall edge of the paper to the mark.
6. Repeat with the other foot and use the longer measurement.

Measure your feet later in the day if possible because feet can swell slightly after standing or walking. Wear the type of socks you plan to wear with the shoes. Thick socks can change the fit of boots, sneakers, and walking shoes. If your feet are different lengths, choose based on the longer foot and adjust with insoles or lacing if needed.

Centimeters and inches to shoe size

A foot length to shoe size converter is especially useful when the shoe listing includes centimeters, inches, Japan sizing, or a size chart with foot length. If you know your foot length in centimeters, you can match it to the closest adult or kids size. For example, 25 cm foot length is commonly close to US men’s 7.5, US women’s 9, UK adult 7, or EU 40.5. A 24 cm foot length is commonly close to US men’s 6.5, US women’s 8, UK adult 6, or EU 39.

Inches can also be converted to a closest size. For example, 10 inches is about 25.4 cm, which is commonly close to US men’s 8, US women’s 9.5, UK adult 7.5, or EU 41. If you are switching between centimeters and inches often, this converter does the shoe specific matching, while the Height Converter and Length and Distance Converter can help with broader measurement needs.

When measuring foot length, remember that the foot length is not always the same as the inside length of the shoe. Shoes usually need extra room in front of the toes. The amount of room depends on shoe type, brand, activity, and personal preference.

Adult international shoe size chart

Use this shoe size conversion chart as a practical reference for adult sizes. The converter above uses this type of chart based approach to find the closest match.

Kids and toddler shoe size chart

Use this kids shoe size conversion chart for toddlers, children, and youth sizes. Kids sizing varies by brand, and growing room may be needed.

Shoe sizing tips for online shopping

Online shoe shopping is easier when you compare more than one detail. Start with your usual size, then convert it to the target system. Next, compare the foot length in centimeters or inches. Then check the brand’s own chart. If the product page includes customer reviews, look for comments such as runs small, runs large, narrow, wide, true to size, roomy toe box, stiff upper, or needs break-in time.

For sneakers, many shoppers prefer a little toe room, especially for running, walking, gym workouts, and long days on foot. For boots, socks matter. A winter boot worn with thick socks may need more space than a fashion boot worn with thin socks. For sandals, too much length can look awkward or cause sliding. For dress shoes, the shape of the toe box and the stiffness of the material can matter as much as the size label.

When comparing prices across stores, the Discount Calculator, Split Bill Calculator, Tip Calculator, VAT Calculator, and Loan and Interest Calculator can support everyday spending decisions. For travel shopping, the Fuel Cost Calculator and Jet Lag Calculator may also be useful.

Common mistakes when converting shoe sizes

One common mistake is using a men’s chart for women’s shoes or a women’s chart for men’s shoes. Another is using an adult chart for kids shoes. A third is treating EU sizes as perfectly universal across every brand. These mistakes can lead to shoes that are too short, too long, too narrow, or uncomfortable.

Another mistake is ignoring width. A person with a wide foot may feel tightness even when the length is correct. A person with a narrow heel may experience slipping even when the size is technically right. Foot shape also matters. Some people have longer second toes, high arches, flat feet, bunions, or different left and right foot measurements.

Finally, do not assume every shoe type should fit the same way. Sneakers, boots, sandals, heels, dress shoes, hiking shoes, and children’s shoes all have different fit expectations. Use the converted size as a starting point, then adjust based on shoe type, brand guidance, socks, width, and return policy.

Fit tips by shoe type

Sneakers and running shoes

Sneakers often feel better with a little space in front of the toes. This helps when walking, running, or standing for long periods. If your foot length falls between two sizes, the larger size may be more comfortable, especially for athletic shoes.

Boots

Boots may need extra room for socks and foot movement. Hiking boots, work boots, and winter boots should not crush the toes. At the same time, the heel should not lift too much when walking.

Sandals

Sandals usually need a secure fit because the foot is less enclosed. Too much extra length can cause sliding. Check whether the sandal has adjustable straps, arch support, and enough width.

Dress shoes and heels

Dress shoes and heels can feel tighter because of narrow toe shapes and firm materials. A size conversion may match the length but still feel tight in the toe box. Width and shape are especially important here.

Children’s shoes

Children’s shoes should allow movement and some growing room, but they should not be so large that the child trips or slides. Check fit often because children’s feet can grow quickly.