What is the difference in length between two shoe sizes?

It’s not uncommon for people to want to know the difference in size between two shoe sizes. We all need shoes that fit well, and sometimes it can be challenging to find a good match if you’re shopping online. This article will explain what the difference is between one US size and the next.

The most common difference in length between shoe sizes

Men & Women’s shoe sizes: The difference between two US shoe sizes is usually between 0.16-0.20in (4-5 mm). Meaning that e.g. a US size 8.5 is normally 0.16-0.20in longer than a US size 8. If you go a full size up this means the difference between a US size 8 and a US size 9 will be around 0.32-0.40in (8-10 mm)

Kid’s shoe sizes: The same rule applies for kids. The difference in length between sizes is approximately 0.16-0.20in (4-5 mm).

Is there a big difference between half a shoe size?

As mentioned above the difference for half a shoe size is usually 0.16-0.20in (4-5 mm). It may not sound as much but it can make a big difference to whether the shoe fits or not.

Differences between two shoe sizes by brand

Nike – New Balance – adidas – Converse – Asics – Vans – Reebok

What is the difference in length between two Nike shoe sizes?

For women, men & kids the difference between two Nike US shoe sizes is usually 0.16-0.20in, meaning that for example a Nike US size 7.5 is 0.16-0.20in longer than a Nike US size 7.

Try our online shoe size calculator for Nike here.

What is the difference in length between two New Balance shoe sizes?

Men, women & kids: the difference between New Balance’s shoe sizes is 0.20in. meaning that e.g. a New Balance US size 9 is 0.20in. longer than their US size 8.5.

Try our online shoe size calculator for New Balance here.

What is the difference in length between two adidas shoe sizes?

Men & women: the difference between two adidas US shoe sizes is usually 0.16 to 0.20 inches, implying that a adidas US size 7.5 is 0.16-0.20 longer than a adidas US size 7.

Kids: the difference between two adidas kid’s US shoe sizes is is 0.20in.

Try our online shoe size calculator for adidas here.

What is the difference in length between two Converse shoe sizes?

Men, women & kids: the difference between two Converse US shoe sizes is usually 0.16 to 0.20 inches, implying that a Converse US size 7.5 is 0.16-0.20 longer than a Converse US size 7.

Try our online shoe size calculator for Converse here.

What is the difference in length between two Vans shoe sizes?

Men, women and kids: the difference between Vans’ shoe sizes is 0.20in. meaning that e.g. a Vans US size 9 is 0.20in longer than their US size 8.5. If you go a full size up, for example, from a US size 9 to a US size 10 then the difference will be 0.20in.

Try our online shoe size calculator for Vans here.

What is the difference in length between two Reebok shoe sizes?

Men: the difference between two Reebok men’s US shoe sizes is usually 0.16 to 0.20 inches, meaning that a Reebok US size 7.5 is 0.16-0.20in. longer than a Reebok US size 7.

Women: the difference between two Reebok women’s US sizes is 0.20 inches.

Kids: the difference between two adidas kid’s US shoe sizes is 0.16 – 0.20in.

Try our online shoe size calculator for Reebok here.

What shoe size should I buy if they don’t have my size?

If the size your are looking for is not available we recommend you buy the next size up. In that way, you can always buy a pair of extra insoles to make the shoes fit better.