Cycling Shoe Size Guide – Which Size Do I Need?

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Buying your cycling shoes online… It’s a continuous struggle because of the many different fits and lasts used by various brands. So we thought: how can we make this a better experience? In order to make it easier for you to determine the correct cycling shoe size for every brand, we’ve taken a trip down to our warehouse and looked at all our various brands of shoes to see how they compare, how long each shoe is, and what kind of fit they have. From that research comes this size guide, which helps you find the right size of cycling shoe for any brand.

We measured the shoes on the inside of the shoe, measuring from the heel all the way to the front of the toes. This quickly showed us that identical sizes can vary hugely in length and width between different brands of cycling shoes. This is why we’ve done an extensive write-up to help you find the right shoe size!

In order to determine your correct shoe size, you first need to know your foot length. This tells you, in centimeters, which shoe size you’ll need. You can then check what shoe size you need per brand.

Shoe Size Guide - Place your foot against the wall with your heel.
Place your foot straight against the wall with your heel.

It might sound a little complicated, but if you follow the steps listed below, you’ll know your size in no time. Want to jump straight to the size table of your favourite brand? Click on it in the list below.

Cycling shoe size split by brand

Sidi Cycling Shoe Sizes
Shimano Cycling Shoe Sizes
Northwave Cycling Shoe Sizes
Bontrager Cycling Shoe Sizes
Lake Cycling Shoe Sizes
Mavic Cycling Shoe Sizes
Five Ten Cycling Shoe Sizes
Width in Relation to the Length of your Foot

Step 1, Measure your Foot

Take a piece of A4 paper and place this on the floor, right against the wall. Place your foot on the paper and ensure your heel is properly pushed against the wall. Draw a line at the end of your big toe (or the one next to that if that’s longer). Measure the length, and you know the length of your foot in centimeters.

Just to be sure, measure both of your feet. More often than not, they differ in length ever so slightly. When selecting your new shoes, always use the larger of the two measurements.

Shoe Size Recommendation - Use a pen to draw a line at the toe which sticks out the most at the front.
Use a pen to draw a line at the toe which sticks out the most at the front.

Since you want to have a little breathing room in your shoe, add approximately 5 millimeters to your measurement. The length you add to your measured foot length can vary from person to person, since one might prefer a little tighter fit than the other…

Shoe Size - Taking Measurements
Taking measurements…

We recommend you maintain that 5 millimeters of clearance, as this enables you to walk on the shoes. Your feet will also expand a little as you ride, so a little extra room to take this into consideration is welcome.

If you increase this margin, then there’s a chance you’ll start sliding around in your shoes. This is the last thing you’d want when pushing for the line against your friends!

Step 2: Find the Matching Shoe Size with Your Favourite Brand

Now that you know the length of your feet + the additional space required inside the shoes, you have the number of centimeters matching the shoe size in centimeters we display on our website underneath the EU shoe size.

The lists below clearly shows that the EU/UK shoe size differs from brand to brand with the same amount of centimeters you measured. Start looking for your dream shoes and see which size in centimeters matches your feet. These shoes should fit perfectly then!

Step 3: Check the Width of the Shoes

Cycling Shoe Size - Taking Measurements - Determine the width of your feet
Determine the width of your foot

Just to make sure, check the width of the shoes. We’ve listed the shoes as narrow, medium, or wide. In order to determine your shoe width, simply measure the circumference of your foot.
Do so by measuring the widest part of your foot as shown in the image above. Now look up the length of your foot in the table, without adding the 5 mm. Noted behind the foot lengths are the corresponding widths. This instantly shows you whether you’ve got a narrow, medium, or wide foot. It’s now time to start looking for the right shoes!

Do you have wider feet? Then it’s probably best not to go for shoes which are more narrow in their design. Chances are they’ll cause pressure points, meaning you’ll have to return the shoes because they’re not comfortable. We have noticed that medium shoes tend to be suitable for almost everyone.

Step 4: Order your Shoes and Don’t Forget your Cleats!

Taken all the measurements you need, double checked everything, and have you found the right cycling shoes for you? Then simply order them in our webshop and have them delivered to you in just a few days. All you have to do is mount the cleats (not included with the shoes) and hop onto your bike!

Cycling Shoe Sizes per Brand

Sidi Cycling Shoe Sizes

Sidi Foot Length
36 21,5 cm
37 22 cm
38 23 cm
39 23,5 cm
40 24,5 cm
41 25,5 cm
42 26 cm
43 26,5 cm
44 27 cm
45 27,5 cm
46 28,5 cm
47 29 cm
48 30 cm
49 30,5 cm
50 31 cm

Shimano Cycling Shoe Sizes

Shimano Foot Length
37 23,2 cm
38 23,8 cm
39 24,5 cm
40 25,2 cm
41 25,8 cm
42 26,5 cm
43 27,2 cm
44 27,8 cm
45 28,5 cm
46 29,2 cm
47 29,8 cm
48 30,5 cm
49 31,2 cm
50 31,8 cm

Northwave Cycling Shoe Sizes

Northwave Foot Length
34 21,7 cm
35 22,2 cm
36 22,7 cm
37 23,7 cm
38 24,2 cm
39 24,7 cm
40 25,7 cm
41 26,3 cm
42 27 cm
43 27,5 cm
44 28,3 cm
45 29 cm
46 29,7 cm
47 30,2 cm
48 31,1 cm

Bontrager Cycling Shoe Sizes

Bontrager Foot Length
36 22,4 cm
37 23,1 cm
38 23,7 cm
39 24,3 cm
40 25 cm
41 25,9 cm
42 26,2 cm
43 26,9 cm
44 27,4 cm
45 28,1 cm
46 28,8 cm
47 29,3 cm
48 29,9 cm
49 30,6 cm

Lake Cycling Shoe Sizes

Lake Foot Length
37 23,2 cm
38 23,9 cm
39 24,5 cm
40 25,2 cm
41 25,9 cm
42 26,5 cm
43 27,2 cm
44 27,9 cm
45 28,5 cm
46 29,2 cm
47 29,8 cm

Mavic Cycling Shoe Sizes

Mavic Foot Length
36 22,7 cm
36 2/3 23,1 cm
37 1/3 23,5 cm
38 23,9 cm
38 2/3 24,4 cm
39 1/3 24,8 cm
40 25,2 cm
40 2/3 25,6 cm
41 1/3 26,1 cm
42 26,5 cm
42 2/3 26,9 cm
43 1/3 27,3 cm
44 27,8 cm
44 2/3 28,2 cm
45 1/3 28,6 cm
46 29 cm
46 2/3 29,5 cm
47 1/3 29,9 cm
48 30,3 cm
48 2/3 30,7 cm

Five Ten Cycling Shoe Sizes

Five Ten Foot Length
37 23 cm
38 24 cm
39 24,5 cm
39 1/2 25 cm
40 25,5 cm
41 26 cm
41 1/2 26,5 cm
42 27 cm
42 1/2 27,5 cm
43 28 cm
44 28,5 cm
44 1/2 29 cm
45 29,5 cm
46 30 cm
47 31 cm

Width in Relation to your Foot Length

Length measured in cm Narrow Medium Wide
22,9 < 20,1 20,2 – 22,0 > 22,1
23,4 < 21,3 21,4 – 22,8 > 22,9
23,8 < 21,5 21,6 – 22,9 > 23,0
24,1 < 21,7 21,8 – 23,1 > 23,2
24,3 < 21,9 22,0 – 23,3 > 23,4
24,7 < 22,1 22,2 – 23,5 > 23,6
25,1 < 22,3 22,4 – 23,7 > 23,8
25,3 < 22,6 22,7 – 24,1 > 24,1
25,4 < 22,8 22,9 – 24,2 > 24,3
25,8 < 23,0 23,1 – 24,4 > 24,5
26,3 < 23,2 23,3 – 24,6 > 24,7
26,5 < 23,4 23,5 – 24,8 > 24,9
26,7 < 23,7 23,8 – 25,0 > 25,1
27,1 < 23,9 24,0 – 25,3 > 25,4
27,6 < 24,1 24,2 – 25,5 > 25,6
27,8 < 24,3 24,4 – 25,7 > 25,8
28 < 24,5 24,6 – 25,9 > 26,0
28,4 < 24,7 24,8 – 26,1 > 26,2
28,9 < 24,9 25,0 – 26,3 > 26,4
29,1 < 25,1 25,2 – 26,5 > 26,6
29,3 < 25,3 25,4 – 26,7 > 26,8
29,7 < 25,6 25,7 – 27,0 > 27,1
30,1 < 25,8 25,6 – 27,2 > 27,3
30,3 < 26,0 26,1 – 27,4 > 27,5
30,5 < 26,2 26,3 – 27,6 > 27,7
30,7 < 26,4 26,5 – 27,8 > 27,9
30,9 < 26,6 26,7 – 28,0 > 28,1
31,1 < 26,8 26,9 – 28,2 > 28,3
31,3 < 27,0 27,1 – 28,4 > 28,5
31,6 < 27,2 27,3 – 28,6 > 28,7
31,9 < 27,4 27,5 – 28,8 > 28,9
32,1 < 27,6 27,7 – 29,0 > 29,1
32,4 < 27,8 27,9 – 29,2 > 29,3
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Agnes Ronner

Agnes Ronner

Track-, road-, or mountain bike. Whatever it is, I love it. Cycling started out as an alternative to skating in the summer. I then moved to track cycling at the highest level, and rode my mountain bike on rainy days and during the winter. I currently have a Giant TCR Advanced 1 LTD and a Sensa Merano SFB Pro. I might just get a racing licence next year, and start competing again!

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17 thoughts on “Cycling Shoe Size Guide – Which Size Do I Need?”

    1. Hi Delvin,

      We currently don’t offer Fizik shoes, so they are not included in our Shoe Size Guide. If we add Fizik cycling shoes to our collection we will off course update this article.

    1. My foot is 29.5 cm long and width is 29cm ? That means i shoud wear 32cm long shoes to fit my widith ?

  1. A friend recommends Sidi. But my size is 39. Sidi does not list shoes under size 40. Do you know something I don’t?

  2. What, other than style, is the difference between men’s and women’s cycling shoes? Are there differences in width or something of that nature?

  3. Thanks for this article. I already made a mistake once and they sent me shoes, which in the end didn’t fit me at all. I will try your method and think that it will turn out to fit the right shoes and I can ride my bike normally https://bikesist.com otherwise it’s quite uncomfortable in ordinary shoes.

  4. Found that Sidi’s Eagle 7 MTB 46 is too big for me, while all my Shimano are 45. So Sidi 45 or 45.5 should be much closer to Shimano 45 (but haven’t tried yet).

    PS Huh, chainreactioncycles recommend even 47 sidi for my 28.5cm. WHAT?))

  5. Are those size charts for both men and women? I’m male. Asked around a few online shops like wiggle, competitive cyclist, evans cycles, etc., and some local shops here, which shimano shoe fits me right. I got size 10.5 US, about 27 cm. Most advise i got was to go one size up, get size 46. Shimano size charts say 10.5 should be 45 eu, a size up makes it 46 eu. Your chart here has me at 44 (27cm + 5mm). Now i’m a bit confused.

  6. This article was really helpful when I ordered my Shimano shoes. Now I’m considering to grab a second pair, probably a Specialized or Fizik. Are you planning to make a chart for those brands as well? Thanks a lot!

    1. What’s your foot size? I’m 10 US (10.5 inches or 26.9 cm) but i always use 10.5 US on Nike running and basketball shoes. And i’m not sure if it’s 44 or 45 i should get. Here it’s 44. But i’ve been advised to size up and i don’t know if it should be 45.

  7. Now I’m really confused. My foot length is 27.3cm which makes me a size 44 in the Northwave shoes that I already own. Only thing is that I’m wearing size 46. I just put my foot on the insole, and there is a 2.5 cm gap in front of my toe which makes sense as the 46 should be 29.7 cm long, which it is. But I can’t go any smaller or they will be too narrow.
    My foot width is just on the top end of medium, so a bit big but nothing remarkable. But you don’t say which brands come up wide or narrow, just to pick one that doesn’t look narrow. I prefer narrower road shaped style MTB shoes, so that I don’t get heel rub on the chain stays. Is there a narrow style shoe that fits a wide foot so that I can get one the correct size/ length?

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