ON Shoes Size Chart for Men and women

This post was last updated on March 6th, 2022 at 11:12 pm

On-Running is Swiss origin shoe brand, founded by engineers and backed by Roger Federer. Real technical running shoes and outdoor hikers for men and women are their core products. Aside of technical features ON running shoes fit true to size, no doubt about that. Discover your perfect size in the below ON Shoes size chart with size conversion in UK, US and EU sizes. Like in all Shoe size charts, we recommend measuring your foot length. When you fall in between sizes in the below size tables, pick the larger one.

If you already have a pair of AsicsSauconyBrooks, or New Balance, Hoka running shoes that fit you well, go with the same size for your On Running shoes. Compared with Nike and Adidas shoes it’s best to take one size down

On Shoes Sizing Table of content

ON Running shoes size chart for women
ON Running shoes size chart for women

On men’s size chart

On Men’s shoe sizes in 1 complete and easy to understand size table with size conversion between foot length (in cm and inches) and International sizes like CN, JP, Mondo, US, UK and EU sizing

How to measure your foot?

Foot length in CM
(CN, JP, Mondo)
Foot length in
ON US SizeON UK SizeON EU Size
25 cm9.84 “740
25.5 cm 10.04 ” 740½
26 cm 10.24 ” 841
26.5 cm 10.43 ” 842
27 cm 10.63 ” 942½
27.5 cm 10.83 ” 943
28 cm 11.02 ” 1044
28.5 cm 11.22 ” 10½1044½
29 cm 11.42 ” 1110½45
29.5 cm 11.61 ” 11½1146
30 cm 11.81 ” 1211½47
30.5 cm 12.01 ” 12½1247½
31 cm 12.2 ” 1312½48
31.5 cm 12.4 ” 1413½49

On women’s size chart

On shoe women’s sizes in 1 complete and easy to understand size table with size conversion between footlength (in cm and inches) and International sizes like CN, JP, Mondo, US, UK and EU sizing

How to measure your foot?

Foot length in CM
(CN, JP, Mondo)
Foot length in
ON US Size ON UK Size ON EU Size
22 cm8.66 ” 5336
22.5 cm 8.86 “36½
23 cm 9.06 ” 6437
23.5 cm 9.25 ” 37½
24 cm 9.45 ” 7538
24.5 cm 9.65 ” 38½
25 cm 9.84 ” 8639
25.5 cm 10.04 ” 40
26 cm 10.24 ” 9740½
26.5 cm 10.43 ” 41
27 cm 10.63 ” 10842
27.5 cm 10.83 ” 10½42½
28 cm 11.02 ” 11943

On-running shoe sizes compared to other brands

Size Comparison Chart

BrandOn size
AdidasGo the same
ASICSGo half a size smaller
BrooksGo the same
HOKA ONEGo the same
NikeGo the same
Nike FlyknitGo half a size smaller
MizunoGo the same
SauconyGo the same

On-Running shoes size by model

It’s a myth that sizing is the same in 1 brand overall models. In shoe-making factors like design elements and shoe construction have an impact on fit and sizing.

On-Running recommends sizing up or down, depending on the model:

  • On Cloud – go US 0.5 bigger
  • On Cloud X – go true to size
  • On Cloudflow – go true to size
  • On Cloudswift – go US 0.5 bigger

Measure your feet for the right size of your ON shoe

How do I know my ON shoe size?

You will need: your running socks, a piece of paper or cardboard, a tape measure or ruler, and a pen

Time needed: 3 minutes.

How should ON Running shoes fit and how to define the perfect fitting running ON shoe Size?
10 easy steps to measure your feet correctly:

  1. Measure your feet in the afternoon.

    Your feet swell during the day, it’s best to measure your feet at their fullest

  2. Stand When Measuring

    When in a wheelchair there’s no pressure on the feet, so it’s unnecessary to stand up.

  3. Wear socks

    When you run, you wear socks. Make sure you wear socks when you measure your feet.

  4. Be precise

  5. Measure both feet

    Measure your left and right foot separately as they’re not the same length. Take the biggest measurement to determine your running shoes Size

  6. Stand on your piece of paper

    Keeping your body weight over your foot, trace a thin line around the outside of your entire foot.

  7. Start drawing

    When drawing the line, hold the pen perpendicular to the ground.

  8. Measure the length of your feet

    Measure vertically down the length of your foot tracing. This is your foot length.

  9. Find your width fitting by drawing or with measuring tape

    Measure horizontally across the widest part of your foot tracing. This is your foot width.

  10. Determine your running shoe size in the conversion charts

    Start from the measurement in inches or centimeters and define your size in the charts for men or women

On Running shoe sizing explained

On Shoes Size by Chari Hawkins

Frequently asked questions about On Running Shoes?

Are on-running shoes true to size?

In its US size chart, most On-Running shoes run true to size compared to other popular brands.

What’s my size in on running shoes?

In general, Running shoe size is typically a half size larger than your typical shoe size. You always start with measuring the length and width and your true shoe size and take it from there. Most of the time, you will end up with a running shoe that’s about a half size bigger than your regular shoe size.

Brands, ON Running Size Charts, Running Size Charts, Shoe Size Chart, Sports Size Chart

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