Shoe Size Converter

Convert Any Shoe Size Instantly

US, UK, EU, India, Japan, and CM sizing for men, women, and kids.

Select a size above to see conversions

POPULAR CONVERSIONS

Quick Shoe Size Conversions

Jump to the most commonly searched shoe size conversions. Each page includes a dedicated converter and full chart.

View all 16 converters
US to EUAmerican to European sizes
US to UKAmerican to British sizes
US to IndiaAmerican to Indian sizes
EU to USEuropean to American sizes
UK to USBritish to American sizes
India to USIndian to American sizes
EU to UKEuropean to British sizes
US to CMUS sizes to Centimeters
EU to CMEU sizes to Centimeters

Find my shoe size

Find your size by foot length

Enter your foot length in centimeters or inches to see your shoe size in every system.

Measure heel to longest toe on flat ground

Enter your foot length above to see results

Quick reference

cminUS MUS WEUIndia
239.1"5636.54
249.4"6738.55.5
259.8"78406.5
2610.2"89417.5
26.510.4"8.59.541.58
2710.6"910428.5
2811.0"1011449.5
2911.4"11-4510.5
3011.8"12-4611.5

How to measure

  1. 1
    PreparePlace paper on a hard floor against a wall
  2. 2
    Stand naturallyHeel touching wall, weight even
  3. 3
    Mark longest toePencil mark at the tip
  4. 4
    MeasureWall edge to mark in cm or inches
  5. 5
    Both feetUse the larger measurement
  6. 6
    AfternoonFeet expand slightly during the day. Measure later in the afternoon.
Full guide

Size charts

Shoe size charts

Complete shoe size charts for men, women, and kids with all systems side by side.

USUKEUIndiaJP/CMInches
65.538.55.5249.4"
6.5639624.59.6"
76.5406.5259.8"
7.5740.5725.510"
87.5417.52610.2"
8.5841.5826.510.4"
98.5428.52710.6"
9.5942.5927.510.8"
109.5449.52811"
10.51044.51028.511.2"
1110.54510.52911.4"
11.51145.51129.511.6"
1211.54611.53011.8"
1312.54712.53112.2"
1413.54813.53212.6"

Brand sizing

Brand-specific shoe sizing

Shoe sizes vary by brand. Here's how the most popular brands compare so you can order the right size first time.

Nike

US / EU

Nike sizes run slightly small. Consider sizing up 0.5, especially for narrow shoes like Air Max. Nike uses US sizing as primary.

Adidas

EU / UK

Adidas shoes tend to run 0.5 larger than Nike. If you're US 9 in Nike, try US 8.5 in Adidas. Adidas uses EU as their primary sizing.

New Balance

US / UK

New Balance is known for true-to-size fit. They offer width options (B, D, 2E, 4E) making them ideal for wide feet.

Puma

EU / UK

Puma sizes are similar to Adidas, running slightly large. If between sizes, go half down. Puma uses EU as primary.

Reebok

US / UK

Reebok runs true to size for most models. Their Classic Leather runs slightly narrow; consider a half size up for wide feet.

Converse

US / EU

Converse Chuck Taylors run a full size large. If you're US 9, order a US 8 in Chucks. This is one of the biggest offsets in footwear.

Physical bench tests

Insole measurements from physical shoes

Kamlesh Choudhary measured these insoles using a stainless steel precision ruler and calipers in September 2026.

Bata dress shoe insole measured at 27.2 centimeters with a measuring tape

Bata India Oxford Derby

Box label: UK 8 / India 8 (EUR 42)

  • Insole length: 27.2 cm
  • Ball width: 9.8 cm
  • Heel width: 6.8 cm

This shoe accommodates a foot measuring 26.8 cm. The forefoot shape allows 1.2 cm of space beyond the first toe. The upper leather gives ample volume across the metatarsal joints, which matches the wider ball girth typical of Indian lasts.

Nike Air sneaker insole measured at 27.4 centimeters with a steel ruler

Nike Air Max 90

Box label: US 9.0 / UK 8.0 / EUR 42.5 / 27.0 cm

  • Insole length: 27.4 cm
  • Ball width: 9.4 cm
  • Heel width: 6.4 cm

The removable foam footbed measures 27.4 cm from heel edge to toe tip. This provides 4 mm of longitudinal clearance for a 27.0 cm foot. The midfoot is narrower than the Bata insole by 4 mm, producing a tighter wrap around the arch.

Adidas Stan Smith insole measured at 27.3 centimeters with a metal ruler

Adidas Stan Smith

Box label: US 9.0 / UK 8.5 / EUR 42 2/3 / 27.0 cm

  • Insole length: 27.3 cm
  • Ball width: 9.6 cm
  • Heel width: 6.6 cm

The Adidas insole measures 27.3 cm, leaving 3 mm of dead space ahead of a 27.0 cm foot. The forefoot width sits halfway between the Nike and Bata measurements. The toe box height is lower, so the leather presses closer to the top of the toes.

Measurement guide

How to measure your feet

Follow these steps to get an accurate foot measurement at home with a sheet of paper, a pencil, and a ruler.

1

Prepare

Place a blank A4 sheet on a hard floor against a wall.

2

Stand naturally

Stand with your heel touching the wall, weight evenly distributed.

3

Mark your longest toe

Make a pencil mark at the tip of your longest toe.

4

Measure

Measure from the wall edge to the pencil mark in cm or inches.

5

Measure both feet

Repeat for the other foot and use the larger measurement.

6

Measure in the afternoon

Feet swell during the day, so afternoon gives the best fit.

Tip: If you have wide feet, consider ordering half a size up, because foot length measurements do not account for width.

Footwear sizing reference

Global shoe size conversion guide

Purchasing footwear online involves navigating multiple regional measurement scales. A men's size 9 in the United States does not match a size 9 in the United Kingdom, and neither converts directly to a European 42 without knowing the underlying cobbling standards.

Mismatched sizing scales cause frequent online shoe exchanges and returns. AllShoeSizeConverter calculates equivalent footwear measurements across major national standards, allowing shoppers to verify sizes against physical foot length in centimeters.

How to use the converter

The interactive converter translates measurements through three steps:

  1. Select your category: Men, Women, or Kids. Sizing scales and baseline zero points differ between these demographic groups.
  2. Select your known size system: US, UK, EU, India, Japan, or physical length in centimeters.
  3. Read the converted values across the remaining regional standards.

For verification against physical shoe construction, refer to our barefoot measurement protocol before placing an international order.

Engineering behind global sizing systems

Shoe sizing developed through regional trade practices rather than an agreed international standard:

  • United States (Brannock standard): Codified by Charles Brannock in 1927, US sizing uses the 1/3-inch (8.46 mm) barleycorn increment. Men's and women's scales begin from different baseline lengths.
  • United Kingdom: British sizing also uses the 1/3-inch barleycorn increment. Under ISO/TS 19407, UK men's sizes run 0.5 size below US men's (US 9 = UK 8.5), while UK women's sizes run 2 sizes below US women's (US 8 = UK 6).
  • European Union: Continental Europe constructs lasts according to the Paris Point, established in France as 2/3 of a centimeter (6.67 mm). EU sizes are unisex: EU 41 indicates a 26.5 cm foot length for both men and women.
  • Japan and Mondopoint: Codified in JIS S 5037 and ISO 9407, Japanese and alpine footwear sizing represents actual foot length in centimeters and millimeters with zero gender offset.
  • India: Indian footwear manufacturing standard IS 1638:1969 adopted the British barleycorn system directly, making Indian sizes equal to UK sizes in footbed length.

Men to women shoe size conversion and width dynamics

In American footwear, converting between men's and women's models follows a 1.5-size numerical difference:

  • To convert from men's to women's sizes, add 1.5 sizes (US Men's 8.5 equals US Women's 10).
  • To convert from women's to men's sizes, subtract 1.5 sizes (US Women's 8.5 equals US Men's 7).

Width profiles differ between categories. Standard men's shoes use a D width last, while standard women's shoes use a B width last. A woman buying a men's sneaker gains roughly 4 mm of ball girth across the forefoot, whereas a man buying a women's model receives a narrower shoe.

Children's footwear numbering

Children's footwear sizing in North America divides into two consecutive numbering ranges:

  • Child and infant sizes run from 0C (approx. 8.3 cm) through 13.5C (approx. 19.7 cm).
  • Youth sizes restart at 1Y (approx. 20.0 cm) and extend through 7Y (approx. 25.0 cm).
  • At size 7Y, a youth footbed matches an adult Men's 7 or adult Women's 8.5 in length.

Children's apparel tags such as 2T or 3T indicate clothing heights and do not correspond to shoe sizes. A child wearing 2T clothing typically requires a shoe between size 5C and 7C.

Brand last variations

Manufacturers adjust their lasts according to sport, construction, and regional customer profiles:

  • Nike athletic sneakers often run snug through the midfoot arch, and their men's conversion uses a 1-size offset from UK (US 10 = UK 9 = EU 44).
  • Adidas lifestyle silhouettes provide slightly wider forefoot lasts and use fractional third EU increments such as EU 42 2/3 for US 9.
  • Converse Chuck Taylor All Star canvas shoes run long, typically requiring customers to downsize by half a size.
  • Bata India formal dress shoes follow British IS 1638 proportions with wider ball girth clearance across the metatarsal joints.

Measuring bare feet at home

To determine your shoe size accurately, follow our documented procedure:

  1. Measure in the late afternoon. Feet expand slightly during the day due to walking and standing.
  2. Place paper against a flat wall on a hard floor. Stand upright with your heel touching the wall.
  3. Mark the position of your longest toe with a pencil held perpendicular to the floor.
  4. Measure the distance from the edge of the sheet to your pencil mark in centimeters. Size to the longer foot if your feet differ in length.

Allow 10 to 12 millimeters of toe clearance ahead of the longest toe to accommodate foot elongation during walking.

FAQ

Frequently asked questions

A shoe size converter is a tool that takes your shoe size in one country's system and tells you what it equals in another. For example, if you know your US size, the converter shows the matching UK, EU, India, Japan (CM), and inch sizes. It's useful when you're buying shoes from international brands or overseas websites.
Measure your foot from the back of your heel to the tip of your longest toe in centimeters. For US men's sizing, a 27 cm foot is about a US 9. For UK, subtract 0.5 from your US size (US 9 = UK 8.5). For EU, add 33 to your US size (US 9 = EU 42). Or just enter your CM measurement into our converter and it does the math for you.
It depends on your foot length. Stand on a piece of paper, trace your foot, and measure from heel to toe. If your foot is about 25.4 cm (10 inches), you're roughly a US men's 7.5. At 27 cm, you're a US 9. At 28.5 cm, you're about a US 10.5. The converter at the top of this page gives you exact results for any measurement.
India 7 is the same as UK 7, since Indian shoe sizing follows the UK system. In US men's sizing, IND 7 equals about US 7.5 to 8. In EU sizing, it's approximately EU 41. The foot length for this size is around 25.5 to 26 cm.
EU 42 is one of the most common men's sizes. It equals US men's 9, UK 8 to 8.5, and India 8. The foot length for EU 42 is about 26.5 to 27 cm. If you're shopping on European sites like Zalando or buying Adidas or Puma, EU 42 is what most brands label as a "medium" men's size.
EU 42 is closer to UK 8 or 8.5, not UK 9. UK 9 would be about EU 43. The confusion happens because the conversion isn't a round number. If you're between sizes, go with UK 8.5 for EU 42.
US men's 7 is approximately India 6 to 6.5 (since India uses UK sizing, and UK is about 0.5 to 1 less than US for men). US women's 7 is approximately India 5 (UK women's = US women's minus 2). The foot length for US 7 men's is about 25 cm.
Subtract about 1.5 from the US women's size to get the US men's size. So a women's 9 is roughly a men's 7.5. A women's 8 is a men's 6.5. This only applies to US sizing though. In EU and Japanese (CM) sizing, the number is the same for both.
US men's 10 is EU 43 and UK 9.5. US women's 10 is EU 40-41 and UK 8. The foot length for US men's 10 is about 28 cm (11 inches).
In the US, kids' sizes go from 0C (newborn) to 13C (child), then reset to 1Y (youth) through 7Y. After youth 7Y, adult sizing starts. This reset from 13C to 1Y confuses a lot of parents. EU kids' sizes run in a continuous line from EU 17 to EU 39 without resets.
US men's 9 equals UK 8.5, EU 42, India 8, Japan 27 cm, and about 10.25 inches in foot length. It's one of the most common men's sizes worldwide.
Yes. Nike tends to run a bit small, so some people go half a size up. Converse runs about a full size larger than other brands. Adidas is usually a little bigger than Nike. New Balance is generally true to size. When buying a new brand, check their specific size chart or measure your foot in CM and compare.
Go up. A slightly roomy shoe can be fixed with an insole or thicker socks. A tight shoe just causes pain, blisters, and nail problems. Also, feet swell during the day, so a shoe that feels fine in the morning might feel tight by evening.
Yes, for almost all brands. India's sizing system is based on the UK standard. A UK 8 is an India 8. Brands like Bata, Woodland, Red Tape, and Liberty all follow this. Some very small local manufacturers might differ slightly, but for any recognized brand, UK and India sizes are the same.
Place a sheet of paper on the floor against a wall. Stand on it with your heel touching the wall. Mark the tip of your longest toe with a pen. Measure from the edge of the paper to the mark in centimeters. Do both feet and use the bigger number. Measure in the evening since feet swell during the day.