Shoe Size Calculator

Convert shoe sizes between US, UK, EU, and CM for men, women, and children. Find your perfect fit with accurate size conversions and detailed size charts.

Shoe Size Converter

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Shoe Size Charts

Find your shoe size using these comprehensive size charts. Measure your foot length in centimeters or inches and find the corresponding US, UK, and EU sizes.

👨 Men's Shoe Size Chart

US	UK	EU	CM	Inches
6	5.5	39	24.1	9.5
6.5	6	39.5	24.6	9.7
7	6.5	40	25.1	9.9
7.5	7	40.5	25.4	10.0
8	7.5	41	26.0	10.2
8.5	8	42	26.3	10.4
9	8.5	42.5	27.0	10.6
9.5	9	43	27.3	10.7
10	9.5	43.5	28.0	11.0
10.5	10	44	28.3	11.1
11	10.5	45	29.0	11.4
11.5	11	45.5	29.3	11.5
12	11.5	46	30.0	11.8
13	12.5	47.5	31.0	12.2
14	13.5	49	32.0	12.6
15	14.5	50	33.0	13.0

👩 Women's Shoe Size Chart

US	UK	EU	CM	Inches
5	3	35.5	22.2	8.7
5.5	3.5	36	22.6	8.9
6	4	36.5	23.0	9.1
6.5	4.5	37	23.5	9.3
7	5	38	24.1	9.5
7.5	5.5	38.5	24.5	9.6
8	6	39	25.0	9.8
8.5	6.5	39.5	25.4	10.0
9	7	40.5	25.9	10.2
9.5	7.5	41	26.3	10.4
10	8	42	27.0	10.6
10.5	8.5	42.5	27.4	10.8
11	9	43	28.0	11.0
11.5	9.5	44	28.5	11.2
12	10	44.5	29.0	11.4
13	11	46	30.0	11.8

👶 Children's & Youth Shoe Size Chart

US	UK	EU	CM	Inches
1C	0.5	17	9.5	3.7
2C	1.5	18	10.5	4.1
3C	2.5	19	11.0	4.3
4C	3.5	20	12.0	4.7
5C	4.5	21.5	12.5	4.9
6C	5.5	22.5	13.5	5.3
7C	6.5	23.5	14.5	5.7
8C	7.5	24.5	15.0	5.9
9C	8.5	26	16.0	6.3
10C	9.5	27	17.0	6.7
11C	10.5	28	17.5	6.9
12C	11.5	29.5	18.5	7.3
13C	12.5	30.5	19.5	7.7
1Y	13.5	32	20.5	8.1
2Y	1.5	33	21.0	8.3
3Y	2.5	34	22.0	8.7
4Y	3.5	35.5	22.5	8.9
5Y	4.5	36.5	23.0	9.1
6Y	5.5	38	24.0	9.4

C = Child sizes (toddler/preschool), Y = Youth sizes (grade school)

How to Measure Your Foot at Home

📏 Step-by-Step Measuring Guide

Prepare: Place a piece of paper on a hard floor against a wall. Tape it down so it doesn't move.
Stand: Stand on the paper with your heel against the wall. Wear the type of socks you'll wear with the shoes.
Mark: Mark the longest part of your foot (usually the tip of your longest toe) on the paper.
Measure: Use a ruler to measure the distance from the edge of the paper (where your heel was) to the mark. This is your foot length.
Repeat: Repeat for the other foot — they may be different sizes. Use the larger measurement.
Find Your Size: Use the measurement (in CM or inches) with our size charts above to find your correct size.

💡 Important Measuring Tips

Measure in the afternoon or evening — feet naturally swell during the day and are largest later in the day.
Measure both feet — most people have one foot slightly larger than the other. Always buy shoes for the larger foot.
Wear appropriate socks — measure with the type of socks you plan to wear with the shoes (thin socks for dress shoes, thicker socks for boots).
Check both length and width — a shoe that's the right length but too narrow can be just as uncomfortable as one that's too short.
Leave a thumb's width — there should be about a thumb's width (roughly 1 cm or ½ inch) of space between your longest toe and the end of the shoe.

🌍 Understanding International Shoe Sizing

US Sizing: Used primarily in the United States and Canada. Men's and women's sizing are on different scales — a women's US 8 is different from a men's US 8.
UK Sizing: Used in the United Kingdom, Ireland, Australia, New Zealand, and parts of Asia. UK sizes are typically one size smaller than US men's sizes.
EU / European Sizing: Used across Europe and many other parts of the world. EU sizes are based on the Paris point (2/3 cm per size) and don't distinguish between men's and women's.
CM (Centimeter): Foot length measured in centimeters. This is the most objective measurement and is often used by athletic shoe brands for precision fitting.

⚠️ Common Sizing Mistakes to Avoid

Assuming brand consistency — sizes vary between brands. Always check the specific brand's size chart.

Buying shoes that are too tight — shoes should fit comfortably from day one. Don't rely on them "stretching out."

Ignoring width — if you have wide feet, look for wide-width options (D, E, EE, or W) rather than sizing up.

Skipping the try-on — even with accurate measurements, try shoes on when possible, especially for the first time with a new brand.

Shoe Size & Fitting Tips

👟 Choosing the Right Shoe Size

Try shoes at the end of the day — your feet swell throughout the day, so evening fittings give the most accurate size. Shoes that fit in the morning may feel tight by afternoon.
Check the toe box — there should be enough room to wiggle your toes. Cramped toes can lead to blisters, corns, and long-term foot problems.
Walk around in the shoes — stand, walk, and even jog in place to test comfort. Your heel should not slip, and there should be no pressure points.
Consider the shoe type — different activities require different fits. Running shoes need more room in the toe box, while dress shoes should fit more snugly.
Don't size up for width — if the shoe is too narrow, go up in width (D → E → EE) rather than length. A longer shoe will be too loose and cause blisters.

🔄 How Shoe Sizes Differ by Brand

Athletic brands (Nike, Adidas, New Balance) typically run true to size but may differ between models. Always check the brand's specific size chart.
European luxury brands (Gucci, Prada, Ferragamo) often use EU sizing, which is consistent across styles but may fit narrower than US brands.
Boots and work shoes (Timberland, Dr. Martens, Red Wing) frequently require sizing down ½ to 1 full size, especially when made of stiff leather.
Sandals and open footwear often require different sizing — many people size down in sandals since there's no toe constraint.
Children's brands vary significantly. Always remeasure children's feet every 3-4 months as they grow rapidly.

📊 How to Read a Shoe Size Conversion

Men's US → UK: UK men's sizes are typically ½ to 1 size smaller than US men's sizes. A US men's 10 is roughly a UK 9.5.
Women's US → UK: Women's UK sizes are about 2 sizes smaller than US. A US women's 8 is approximately a UK 6.
US Men's → Women's: Women's US sizes are typically 1.5 to 2 sizes larger than men's. A US men's 8 is about a US women's 9.5-10.
EU sizes are unisex — EU sizing doesn't differentiate between men's and women's, making it the most consistent system across genders.
CM is absolute — foot length in centimeters doesn't change between sizing systems and is the most reliable reference point.

👶 Children's Shoe Sizing Tips

Check sizing every 2-3 months for toddlers and preschoolers, and every 3-4 months for school-aged children.
Press the toe — feel for the tip of the longest toe through the shoe. There should be about a thumb's width of space.
Watch for signs of too-tight shoes — redness, blisters, complaints of foot pain, or reluctance to walk/run.
Don't buy shoes "to grow into" — shoes that are too large can cause tripping and improper gait development.
Let children try on shoes themselves — they can feel when shoes are uncomfortable even if they can't articulate it.

🩹 Dealing with Common Fit Issues

Heel slipping: If your heel lifts out of the shoe while walking, try a half-size smaller or a different style. Heel grips can also help.
Pinched toes: Look for shoes with a wider toe box or go up half a size. Pointed-toe shoes should be avoided if you have wider feet.
Arch pain: Insufficient arch support can cause pain. Consider orthotic inserts or look for shoes with better arch support.
Blisters: Often caused by friction from poorly fitting shoes. Try different sock thicknesses or apply anti-friction balms to problem areas.
Numbness or tingling: This indicates the shoe is too tight or laces are too tight. Loosen laces or try a wider width option.

Why Accurate Shoe Sizing Matters

Finding the correct shoe size is essential for both comfort and foot health. Wearing shoes that are too small can lead to painful conditions like blisters, corns, calluses, ingrown toenails, and bunions. On the other hand, shoes that are too large cause friction and instability, which can result in blisters, heel pain, and even falls or ankle injuries.

Your feet are complex structures containing 26 bones, 33 joints, and over 100 muscles, tendons, and ligaments. Each foot absorbs enormous impact — approximately 1.5 times your body weight with every step. Wearing properly fitted shoes helps distribute this force evenly and supports the natural mechanics of your feet, ankles, knees, hips, and spine.

Beyond health, correct sizing also extends the life of your shoes. When shoes fit properly, the materials wear evenly and the structural integrity of the shoe is maintained. Ill-fitting shoes develop uneven wear patterns, break down faster, and need to be replaced more frequently.

Understanding Shoe Size Systems Around the World

Navigating international shoe sizes can be confusing, as different regions use different measurement systems. The three primary systems are US (United States), UK (United Kingdom), and EU (European). Each system uses different increments and starting points, which is why a US size 8 is different from a UK size 8 or an EU size 8.

📏 US Sizing System

The US system uses barleycorn units (1 barleycorn = ⅓ inch or about 8.5 mm). Men's sizes start at approximately size 1 (7⅔ inches), and each full size represents one barleycorn. Women's sizes are shifted about 1.5 sizes larger than men's — a women's US 9 roughly equals a men's US 7.5.

📏 UK Sizing System

The UK system also uses barleycorn units but starts one size smaller than US men's sizing. This means a UK men's size is typically ½ to 1 full size smaller than the equivalent US men's size. Women's UK sizes are about 2 sizes smaller than US women's sizes.

📏 EU / European Sizing System

The European system uses the Paris point, which is ⅔ of a centimeter (6.67 mm) per size. EU sizing is consistent across genders — a men's EU 42 and a women's EU 42 are the same size. This makes EU sizing the most straightforward system for international shoppers.

📏 CM (Centimeter) Measurement

Many modern athletic and premium shoe brands provide sizing based on actual foot length in centimeters. This is the most objective measurement because it doesn't depend on regional conventions. Simply measure your foot from heel to toe in centimeters, and compare it to the brand's CM size chart for the most accurate fit.

Frequently Asked Questions (FAQ)

How do I convert my shoe size between US, UK, and EU?

Use our converter above by selecting your gender, the system you know, and entering your size. For a rough estimate: US men's to UK men's subtract ½ to 1 size; US women's to UK women's subtract about 2 sizes; US men's to EU multiply by 1.5 and add 33. Our calculator handles all these conversions instantly and accurately.

What's the difference between men's and women's shoe sizes?

In the US system, women's sizes are typically 1.5 to 2 sizes larger than men's. For example, a men's US 7 is approximately a women's US 8.5-9. In EU sizing, there is no difference between men's and women's sizes — a EU 40 is the same regardless of gender. UK sizing follows a similar pattern to US, with women's sizes running about 2 sizes larger than men's.

How do I measure my foot size at home?

Place a piece of paper against a wall, stand on it with your heel touching the wall, and mark the longest part of your foot (usually the tip of your longest toe). Measure the distance from the wall to the mark in centimeters or inches. Repeat for both feet and use the larger measurement. Then refer to our size charts above to find your corresponding US, UK, or EU size.

Why do my shoe sizes vary between brands?

Different brands use different lasts (the mold shape around which shoes are constructed), resulting in size variations. A brand that targets a narrower foot profile may label sizes differently than one designed for wider feet. Additionally, materials matter — leather stretches over time while synthetic materials don't. Always try shoes from a new brand or carefully check their specific size chart before purchasing.

How often should I measure my feet?

Adults should measure their feet at least once a year, as feet naturally flatten and spread with age, pregnancy, and weight changes. Children should be measured every 3-4 months due to rapid growth. If you notice shoes becoming uncomfortable, it's a good idea to remeasure, as your foot size can change even in adulthood.

Is a US men's size the same as a US women's size?

No, US men's and women's sizing are on different scales. A US men's size 7 is approximately a US women's size 8.5-9. The difference is about 1.5 sizes for standard widths. However, the actual foot length in centimeters is the same — a men's size 7 and women's size 8.5 both fit a foot measuring approximately 25.1 cm. Use our converter for precise cross-gender conversions.

How much space should I leave at the end of a shoe?

There should be approximately one thumb's width (about 1 cm or ½ inch) of space between your longest toe and the end of the shoe. This allows for natural foot swelling during the day and prevents your toes from hitting the front of the shoe when walking downhill or during activities. Dress shoes can be slightly closer-fitting, while athletic shoes should have more generous toe room.

About This Shoe Size Calculator

Our comprehensive Shoe Size Calculator helps you convert between US, UK, EU, and CM sizes for men, women, and children. Whether you're shopping from an international website, preparing to buy shoes abroad, or simply trying to understand how different sizing systems compare, this tool provides accurate conversions based on standardized size charts.

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Accurate Conversions

Precise size conversions based on official shoe size standards for US, UK, EU, and CM systems.

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All Categories

Support for men's, women's, and children's sizes with separate conversion tables for each.

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Fully responsive design that works perfectly on all devices and screen sizes.

Important Disclaimer: While we strive to ensure the accuracy of all shoe size conversions, sizing can vary between brands, manufacturers, and shoe types. This calculator provides standardized conversions and should be used as a reference. For the best fit, always try shoes on when possible or check the specific brand's size chart. We are not responsible for sizing issues resulting from reliance on these conversions.