Boys’ to Men’s Shoe Size Conversion Charts, Measuring Guide

Whether you’re a new parent putting your baby boy in booties for the first time or the longtime guardian of a growing adolescent on the verge of transitioning to men’s shoes, your next step starts right here! On this page, we’ll introduce you to the full spectrum of boys’ shoe sizes and tackle the basics of boys’ to men’s shoe size conversion. You’ll also find clear, easy-to-understand and even-easier-to-use boys’ shoe size charts.

Boys’ to Men’s Shoe Size Conversion

Want to learn how to do your own boys’ to men’s shoe size conversion? All you have to do is let your fingers do the walking to our mind-bogglingly easy-to-understand chart.

US Kids/Youth Shoe SizeFoot length (inches)US Men Shoe Size
13C7 3/8
13.5C7 1/20.5
1Y7 5/80.5-1
1.5Y7 7/81-1.5
2.5Y8 1/42-2.5
3Y8 3/82.5-3
3.5Y8 1/23-3.5
4Y8 5/83.5-4
4.5Y8 7/84-4.5
5.5Y9 1/45-5.5
6Y9 1/25.5-6
6.5Y9 2/36-6.5
7Y9 5/66.5-7
8Y10 1/67.5-8
8.5Y10 1/38-8.5
9Y10 1/28.5-9
Boys to Men Shoe Size Conversion

As you can see, the boys’ shoe sizing scale is identical to the men’s. The sole difference is that occasionally sizes 1–7 are designated as youth sizes with a “Y” following the number. Consequently, all you need to know for a boys’ to men’s shoe size conversion or youth to men’s shoe size conversion is there is no break in the continuum from youth sizes to men’s. However, this is only true for the youth shoe sizes. Shoe sizes for smaller kids follow a different logic, running from 1C to 13C. For these sizes, conversion is unnecessary, since adult males are almost never able to wear them.

Boys’ Shoe Size Chart

Consult this boys’ shoe size chart to find the exactly right fit in shoe size.

Kids US Shoe SizeFoot length in InchesWorn by
1C3 5/8"Baby
3C4 3/8"Baby
4C4 3/4"Toddler
6C5 1/4"Toddler
7C5 5/8"Toddler
8C6"Small Kids
9C6 1/4"Small Kids
10C6 5/8"Small Kids
11C6 7/8"Small Kids
12C7 1/8"Small Kids
13C7 3/8"Small Kids
1Y7 5/8"Big Kid/Youth
2Y8"Big Kid/Youth
3Y8 3/8"Big Kid/Youth
4Y8 5/8"Big Kid/Youth
5Y9"Big Kid/Youth
6Y9 3/4"Big Kid/Youth

How Do Boys’ Shoes Sizes Work?

Good to know: Youth shoe sizes are the same as men’s shoe sizes!

How boys’ shoe sizes work depends on the age of your boy. When he is a toddler, your boy will wear “small kids’ shoes,” which run from size 0-13. Most boys will wear toddler shoes all the way up to 4 or 5 years of age. Some 4-year-old boys, for example, will wear a size 11 toddler shoe. Toddler sizes are often marked with a “T”, so a size “11T” would simply translate to a size 11 in toddler shoes.

Next come the “youth” shoe sizes. These range from 1 to 7 and, as previously mentioned, are often labeled with a “Y,” so a size 1Y would be a size 1 in youth shoes. Youth sizes are for bigger boys – a size 1Y shoe is bigger than a size 13T shoe. After your child outgrows the largest 7Y shoes, it’s time to move onto adult shoe sizes.

When to Start Buying Men’s Shoe Sizes for Boys

This is a common question and literally a big step. Unfortunately, there’s no one clear-cut, universal answer. There is some overlap between the biggest youth sizes and smaller men’s shoes, even more so between brands. Your boy could very well wind up wearing some shoes in youth sizes, while wearing men’s shoes in the same sizes.

As a rule, your boy should start considering purchasing men’s shoes around the age of 12, when he will typically be wearing a size 6Y-7Y shoe and can fit into a man’s size 6-7. It’s pretty difficult to find men’s shoes under size 6 in most men’s stores and men’s sections, so this is the right time to make the switch.


How do you convert men’s to kids’ shoe sizes?

Youth shoe sizes range from 1 through 7 and are often labeled with a “Y”. A size 1Y would be a size 1 youth shoe. This youth scale is identical to men’s shoe sizes 1 to 7. As a result, the conversion is seamlessly easy, often amounting to nothing more than dropping the Y. See the Boys to Men Shoe size conversion table here.


What is a Youth Size 7 in Men’s Shoes?

Since youth shoe sizes and men’s shoe sizes follow the same scale, a youth size 7 (often denoted as a size 7Y) is the same size as a men’s shoe size 7. See the Boys to Men Shoe size conversion table here.


What is Youth Shoe Size 6 converted to Men’s?

Youth shoe sizes and men’s shoe sizes follow the same scale. Therefore, a youth size 6 (sometimes labeled 6Y) will be the same size as a men’s shoe size 6. See the Boys to Men Shoe size conversion table here.


What is the difference between size 13C and 1(Y)?

In the US, the kids’ shoe size system switches to youth sizes immediately following size 13C in kids’ shoes. Then it begins counting at 1(Y) again. In terms of sizing, there is only approximately ½” difference between 13C and 1Y. See the Boys to Men Shoe size conversion table here.