Global Size Chart

Convert shoe and clothing sizes between US, UK, EU, Japan, China, and CM measurements. Free, accurate, and easy to use.

Built on standardized international sizing frameworks.

Size Converter

Converted Sizes

This tool converts standardized size systems. Fit may vary by brand, width, and foot shape. Shoe width guide →

Regional Size Conversion Tools

Choose your region to see localized size guidance and defaults.

Quick Converters

Shoe Size Converter

Convert shoe sizes between US, UK, EU, Japan, China, and CM measurements.

Clothing Size Converter

Convert clothing sizes for tops, pants, and dresses across all regions.

US to EU Size

Convert US sizes to European Union sizes for shoes and clothing.

UK to US Size

Convert UK sizes to US sizes for accurate international shopping.

CM to US Shoe Size

Convert foot measurements in centimeters to US shoe sizes.

How to Measure Shoe Size Accurately at Home

Finding your correct international shoe size starts with one simple rule: measure your feet in centimeters (CM). Size labels like US, EU, or UK vary between brands, but actual foot length remains consistent worldwide.

Step-by-Step Foot Measurement Guide

  1. Place a sheet of paper against a wall on a hard floor.
  2. Stand with your heel touching the wall.
  3. Keep your weight evenly distributed.
  4. Mark the tip of your longest toe.
  5. Measure the distance from the wall to the mark in centimeters.
  6. Repeat with the other foot — use the longer measurement.

Once you have your measurement, use our 👉 international shoe size converter to find equivalent sizes across regions.

Why Centimeters Are the Most Reliable Measurement

  • CM measurements are consistent worldwide.
  • Shoe size numbers differ between countries.
  • Brands frequently adjust sizing standards.
  • CM helps eliminate guesswork when shopping online.

Common Shoe Measurement Mistakes

  • Measuring in the morning (feet expand during the day)
  • Wearing thick socks unintentionally
  • Ignoring foot width
  • Assuming both feet are identical

Width Matters Too

Some brands offer:

  • Narrow (N)
  • Regular (M)
  • Wide (W)

If you fall between sizes, consider trying a half size up.

How to Measure Clothing Size Correctly

To buy clothes that fit—especially from international brands—you need reliable body measurements. This guide covers what to measure, what to use, and how to avoid common errors. Once you have your numbers, use our clothing size converter to see your equivalent size in US, UK, EU, and other regions.

Tools You Need

  • Soft measuring tape. A cloth or plastic tape that wraps around the body is best. Avoid a stiff metal ruler for chest, waist, and hips.
  • Flat surface and mirror (optional). Stand on a hard floor. A mirror helps you check that the tape is level and not twisted.
  • Light, close-fitting layers. Measure over undergarments or one thin layer. Bulky clothes will make your measurements too large.

How to Measure Properly: Posture and Clothing

Stand in a relaxed way: feet slightly apart, arms at your sides. Do not suck in your stomach or stand extra straight. Breathe normally when you take the measurement. The tape should sit snug against your body but not dig in. If the tape leaves a mark or feels tight, it’s too tight. If it slides down, it’s too loose.

Chest Measurement

For tops, jackets, and dresses, measure your chest at the fullest point. For most people this is at or just below nipple level. Wrap the tape around your chest, under your arms, and keep it parallel to the floor. The tape should be snug but not tight—you should be able to take a normal breath. Record the number in centimeters or inches.

Waist Measurement

Your natural waist is the narrowest part of your torso, usually 1–2 inches above your belly button. To find it, bend to the side; the crease that forms is your waist. Wrap the tape around your waist and keep it level. For pants that sit on your hips, also measure where you usually wear the waistband; that may be lower than your natural waist.

Hips Measurement

Stand with your feet together. Wrap the tape around the fullest part of your hips and bottom—often about 7–9 inches below your waist. Keep the tape parallel to the floor. This measurement is used for pants, skirts, and fitted dresses.

Inseam Measurement

Inseam is the length from your crotch to where you want the hem to sit (e.g. ankle or floor). Easiest method: take a pair of pants that fit the way you like and measure from the crotch seam to the bottom of the leg. Or have someone measure from your crotch to your ankle bone (or desired length) while you stand straight. Record in inches or centimeters.

Sleeve Length

For shirts and jackets, sleeve length helps get the right fit. Start at the center of the back of your neck, run the tape over your shoulder and down the outside of your arm to your wrist (or to where you want the cuff to sit). Keep your arm slightly bent. This gives a “center-back to cuff” measurement that many size charts use.

Differences for Men, Women, and Kids

Men’s sizing usually focuses on chest and waist; shirts may use neck and sleeve. Women’s sizing often uses bust, waist, and hip, and the same size number can mean different things in different countries. Kids’ sizes are often based on age or height (e.g. 110 cm, 120 cm). When you use our clothing size converter, choose the right category (Men, Women, Kids) and garment type (tops, pants, dresses) for accurate results.

Common Measurement Mistakes

  • Too tight tape: The tape should rest on your skin without compressing it. Indentations mean the measurement is too small.
  • Wrong posture: Stand normally. Sucking in or standing unnaturally leads to numbers that don’t match how you’ll wear the clothes.
  • Measuring over bulky clothing: Measure over one thin layer or undergarments only.
  • Tilted tape: Keep the tape level all the way around. A slant gives a larger measurement than your true size.
  • Guessing instead of measuring: Don’t assume your size in a new brand or region. Measure or use the brand’s size chart.

Why Size Labels Differ Across Brands

There is no single global standard. Brands use different fit models and design goals. Some use “vanity sizing” (smaller size labels for the same measurements). Others run true to size or small. After converting your measurements with our clothing size converter, always check the brand’s own size chart when you can.

Fit & Garment Guide: Slim, Regular & Oversized Explained

Understanding garment fit is just as important as knowing your size number.

Slim Fit

  • Tailored and close to the body
  • Narrow shoulders and waist
  • Often requires sizing up if between sizes

Regular Fit

  • Balanced cut for everyday wear
  • Moderate room through chest and waist
  • Typically matches standard size charts

Oversized Fit

  • Intentionally loose and relaxed
  • Designed with extra room
  • Do NOT size up unless recommended

Regional Fit Differences

  • Asian brands often run smaller
  • European brands lean toward slim tailoring
  • US brands frequently offer relaxed fits

Why Sizes Vary by Brand

Manufacturers use different sizing models. Some apply “vanity sizing,” where labels become larger but measurements remain similar.

Always prioritize body measurements over labels.

Why Sizes Differ Between US, EU, UK & Asia

Understanding why sizing systems differ helps you make better conversion decisions. These differences stem from historical standards, manufacturing practices, and cultural preferences.

Historical Sizing Systems

Each region developed its sizing system independently based on local manufacturing standards and average body measurements of their populations. The US system evolved from English measurements but diverged over time. The EU adopted metric-based sizing in the 1970s, creating a more standardized system. UK sizing maintained closer ties to historical English measurements, while Asian sizing systems developed separately based on different average body proportions.

Manufacturing Standards

Different regions have different manufacturing standards and quality control measures. European manufacturers often follow stricter sizing standards, leading to more consistent sizing across brands. US manufacturers have more flexibility, which can lead to greater variation. Asian manufacturers typically produce for smaller average body sizes, which is why their sizes run smaller than Western equivalents.

Vanity Sizing

Vanity sizing is the practice of labeling clothing with smaller sizes than the actual measurements would suggest. This is most common in US women's clothing, where a size 8 might actually measure like a traditional size 10. The practice is less common in men's clothing and European/Asian markets, where sizing tends to be more consistent with actual measurements.

Cultural Fit Preferences

Cultural preferences influence sizing. European and Asian markets often prefer closer-fitting, more tailored clothing, while US markets have historically favored more relaxed fits. This cultural difference affects not just the size labels but the actual cut and fit of the garments.

Metric vs Imperial Systems

The fundamental difference between metric (EU, Asia) and imperial (US, UK) measurement systems creates conversion challenges. While conversions exist, they're not always perfect because the underlying measurement standards differ. This is why centimeter-based measurements (CM) provide the most accurate conversion reference.

Frequently Asked Questions

What is EU shoe size 42 in US?

An EU 42 typically converts to a US men's size 8.5–9, but sizing varies between brands. Use our 👉 shoe size converter for accurate comparisons.

Why do sizes differ between countries?

Sizing systems were developed independently, using different measurement models and manufacturing standards.

How accurate is CM measurement?

Centimeter measurements are the most reliable method because they represent the actual physical length of your foot or body.

Are clothing sizes universal?

No. Clothing sizes vary significantly across regions and brands, even when labeled the same.

Why does my size change by brand?

Brands use different sizing charts and fits. Factors include fabric stretch, target audience, and regional manufacturing norms.

GlobalSizeChart.com is an independent utility for size conversion. Our content is educational and our sizing data is compiled from public standards.

  • Independent Utility Tool — Free converters and charts, not affiliated with any retailer or brand.
  • No brand affiliation — We are not owned by or paid by any clothing or shoe brand.
  • Educational content — Guides and explanations are for information only; always check the brand's size chart when possible.
  • Sizing data compiled from public standards — Conversions are based on widely published international sizing standards; individual brands may differ.