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Bike Size Charts – For Women, Men & Kids

Jeff Balton

Choosing the right size bicycle
Getting the right bike size is crucial, there’s no doubt about that.

When you are lucky enough to test ride a bike, then the process is quite straightforward – it feels good or it doesn’t. It’s as simple as that.

But what can you do when you’re shopping online (bike shops, marketplace, Craigslist and so on)?

The answer is simple – use bike size charts!

We have various methods on how to find the right bike size based on your height and/or inseam, so let’s take a closer look at these below.

Method One: Bike Height Chart – The Easiest

This method requires your height and provides you with the proper frame size measured in inches. If you need the results in centimeters, then jump to step 2.

Mountain Bike Size Chart

Your height / Frame Size / Marker

  • 4’11″ – 5’3″ = 13 – 15 inches = X-Small
  • 5’3″ – 5’7″  = 15 – 16 inches = Small
  • 5’7″ – 5’11” = 16 – 17 inches = Medium
  • 6’0″ – 6’2″ = 17 – 19 inches = Large
  • 6’2″ – 6’4″  = 19 – 21 inches = X-Large
  • 6’4″ and taller  = 21+ inches = XX-Large

Road Bike Size Chart

Height / Frame Size (seat tube height) / Marker

4’10”- 5’2” = 47 cm – 48 cm = XX-Small
5’2″- 5’6” = 49 cm – 50 cm = X-Small
5’3”- 5’6” = 51 cm – 53 cm = Small
5’6”- 5’9” = 54 cm – 55 cm = Medium
5’9”- 6’0” = 56 cm – 58 cm = Large
6’0”- 6’3” = 58 cm – 60” cm = X-Large
6’3”- 6’6” = 61 cm – 63 cm = XX-Large


These two are very generic charts, so we recommend always seeking more information from brands that you’re interested in.

Method Two: Calculating the bike size

  1. Take off your shoes and stand with your legs about 6″ – 8″ (15 – 20 cm) apart. Measure the height from the ground to your crotch.
  2. Be sure of the type of bicycle you want: Mountain bike, city bike or road bike. You can read about the different bike types from here.
  3. Now you can take your calculator and calculate the right size:
    Leg Inseam method


City bike – Leg inseam (cm) x 0,685 = Your frame size
Mountain bike –  Leg inseam (cm) x 0,66 = Your frame size
Road bike – Leg inseam (cm) x 0,70 = Your frame size

(If your leg inseam is 76cm, then your right mountain bike size is 50 cm (20”), road bike 53 cm and city bike 52 cm)


Method Three: Bike Size Chart (Advanced):

Mountain bike size chart

Rider height Leg inseam                                                Suggested Frame Size
Feet/Inches Centimeters Inches Centimeters Inches Size
4’10” – 5’1” 148-158 cm 24-29” 61-73 cm < 14″ XS
5’1″ – 5’5″ 158-168 cm 25-30” 63-76 cm 15″ / 16″ S
5’5″ – 5’9″ 168-178 cm 26-31” 66-78 cm 16″ / 17″ M
5’9″ – 6’0″ 178-185 cm 27`-32` 68-81 cm 17″ / 18″ L
6’0″ – 6’3″ 185-193 cm 28`-33` 71-83 cm 18″ / 19″ XL
6’1″ – 6’6″ 193-198 cm 29`-34` 73-86 cm 19″ + XXL


City bike (Also commuter/hybrid bikes) size chart


Rider height Leg inseam Suggested Frame Size
Feet/Inches Centimeters Inches Centimeters Inches Size
4`10” – 5`1” 147-155 cm 24″-29″ 61-73 cm 14″ XS
5`1″ – 5`5″ 155-165 cm 25″-30″ 63-76 cm 15″ S
5`5″ – 5`9″ 165-175 cm 26″-31″ 66-78 cm 16″ M
5`9″ – 6`0″ 175-183 cm 27″-32″ 68-81 cm 17″ L
6`0″ – 6`3″ 183-191 cm 28″-33″ 71-83 cm 18″ XL
6`1″ – 6`6″ 191-198 cm 29″-34″ 73-86 cm 19″ XXL

Road bike size chart

Rider height Suggested frame size
Feet/Inches Centimeters Centimeters Size
4`10”-5`0” 148-152 cm 47-48 cm XXS
5`0″-5`3″ 152-160 cm 49-50 cm XS
5`3″-5`6″ 160-168 cm 51-52-53 cm S
5`6″-5`9″ 168-175 cm 54-55 cm M
5`9″-6`0″ 175-183 cm 56-57-58 cm L
6`0″-6`3″ 183-191 cm 58-59-60 cm XL
6`3″-6`6″ 191-198 cm 61-62-63 cm XXL

To make it simple – Bicycle Guiders’ bike size graph.

Bike size graph by bicycle Guider

Open me!

Got the right size?


And now go cycling!

*Please note that frame sizes from XXS – XXL don’t have the same meaning for every manufacturer. Those sizes (like on clothing) show current model sizes.


Kids Bike Size Chart

Let’s consider several methods all at once of how to size a bike for a kid with more certainty.

If you want to make sure to choose the right kids’ bike size, you should take into consideration 1) Age, 2) Height, 3) Inseam, and 4) Tire Size.

We tried to gather all of this data into one kids’ bike size chart that you can see below. It should work for most kids, except for some exceptions.

Age Height Leg Inseam Tire Size
Inch cm Inch cm
2 2’9″ – 3’1″ 85-90cm 12″–14″ 85-90cm 10″
3-4 3’1″ – 3’3″ 90-100cm 14″-17″ 35-42cm 12″
4-5 3’3″ – 3’7″ 100-110cm 16″-20″ 40-50cm 14″
5-6 3’7″ – 3-8″ 110-115cm 18″-22″ 45-50cm 16″
6-8 3’8″ – 4’0″ 115-120cm 20″-24″ 50-60cm 18″
7-9 4’0″ – 4’5″ 120-135cm 22″-25″ 55-63cm 20″
9-11 4’5″ – 4’9″ 135-145cm 24″-28″ 60-72cm 24″
11-14 5’+ 145cm + 28″+ 72cm+ 26″

As a result: You can double-check the results. If you’re satisfied, you can choose the right bike based on these results.

If you find that some numbers don’t match and you’re getting different results based on different criteria, keep in mind that all kids are different. As they get older, the discrepancies between individuals become even larger. 


Right Saddle Height (vs Standover Height) For Kids

Choosing the right saddle height is extremely important for all riders, especially for kids. If you place the saddle too low or high, your child is likely to feel a lack of control and lack of confidence.

So, let’s make it clear.

Kids saddle height




Read next: How to fit a bike


The right saddle height has a very important role. If it’s too low, you won’t have enough power in your feet. In mountain bike racing, I have experienced that when the saddle falls one inch down from normal, I lose about 25-50% of my force. I better stop and let the group go, then fix it and lose 15 seconds but I do catch the group and can even get the next group ahead. So the right saddle height plays a big role!

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Right Saddle Height

The easiest way is to

  1. Lean to the wall with your elbow sitting on the bike (or let someone help you as shown on the picture)
  2. Put your leg to lowest point but parallel to the ground.
  3. Move your saddle up or down until you have a nice bend behind your knee. It should be something around 30 ° but don’t waste too much energy finding that exact angle.


Go out and ride. Does it feel good? If not, then adjust. Also, you can adjust the seat to front and rear. 

But… which brand to buy? See our Best Bike Brands

TIP: If you got the right height, mark it down with some sharp object. That’s the best size chart ever 🙂 Some bikes have centimeters marked there, then keep this in mind.


What If I Got My Bike Size Wrong?

Then ask your merchant, if you can send your bike back to get the right one. If you don’t want to do that, then you can do the following things:

  • Move your saddle to the front or rear
  • Buy a longer or shorter stem. It changes your body position
  • Buy a longer seat post


Give it time to get the feeling right. I remember when I got my first 29er mountain bike. It felt like a ship and seemed difficult to ride in narrow trails of the forest. Now I start laughing when I sit on a 26″ mountain bike because it looks so tiny.


Read Next:


  • Kaushik says:

    Hello, I am 5ft 10 inches and 108 kg weight.
    Please suggest me the cycle that suits my height and weight

    • Editor says:

      Hey Kaushik,

      Considering you are 5’10” tall, consider these bike sizes: 54-56 cm for road bikes, 17-18 inches for mountain bikes, and 17-19 inches for hybrid bikes. These are general guidelines, so definitely make sure to check the manufacturer’s size charts and try the bike out if possible.

  • Angela says:

    I am 5’4″, 30″inseam, 57 years old and 140 lbs. What size mountain bike would I need? I want to ride for leisure.

    • Editor says:

      Hey Angela, the best size mountain bike for you would be a 15″ or 16″ frame size, also labeled as Small (S) by some brands. Cheers!

  • Hasan kosa says:

    Hello, two years ago I bought a bike size 52 and the frame size was 28, but recently I started to feel tired, especially after I replaced the handlebars on the bike. Now I feel tired from the lower part of the neck and also at the knee joints. My height is 174 cm and my leg length is 80 cm. Is my bike a good fit and what is causing the pain I’m having?

    • Editor says:

      Hello Hasan, if the only thing you changed on your bike is the handlebar and you felt good riding it before, then the handlebar seems to be the problem.

      You should check that your new handlebar is the same length as the previous one, I suspect the new one is longer which is causing you to stretch more and leads to neck pain. This could also lead to knee pain if it’s causing you to sit more forward on the saddle to compensate for the longer reach.

      Also, if your previous handlebar was a riser type and your new one is flat, this could also cause you to be more stretched out while riding.

      Hope this helps!

  • Osama shaikh says:

    Hello.. please,i need help to choose the right hybrid cycle for me. I am 6.2 foot (188cm) tall, What is suitable bike size for me? Thank you

    • Editor says:

      Hi Osama, you should get an XL or 20″ or 58 cm bike, whatever method is used to measure the bike you’re interested in. But make sure to check the manufacturer’s size chart (if available) and choose based on that.

  • William says:

    Hello, I am 158 cm tall
    I am currently using a 26 rim bicycle, with a frame size of 16 inches.
    I do XC tours, and I would like to switch to using a 29er bike.
    My question is, what would you recommend? Is it a good idea to go to hoop 29?
    In my country it is difficult to find
    Or would a size S with a 27.5 underwire be better?
    I wait your answer
    thank you so much .

    Hola, mido 158 cm
    Actualmente estoy usando una bicicleta aro 26 , con medida del cuadro de 16 pulgadas.
    hago recorridos de XC , y quisiera pasarme a usar una bicicleta aro 29.
    Mi pregunta es, que me recomendarías , es una buena idea ir al aro 29?
    En mi país es difícil encontrar bicicletas XS para aro 29, lo que si e podido ver son bicicletas talla S (15.5 pulgadas) de aro 29, esta medida seria buena para mi?
    O sariá mejor una talla S con aro 27.5?
    Espero tu respuesta
    muchas gracias .

    • Editor says:

      Hey William, in my opinion, a 27.5″ bike would be a better choice for you based on your height because there is a larger selection of models with sizes that fit you. You may struggle to find a 29er with the right frame size, but if you do find one, you will be able to ride it. So wheel size is not an issue, but the range of frame sizes could be.

  • Dewi says:

    Hello.. please,i need help to choose the right bike for my daugther birthday. She is 140cm tall, inseam 67cm. What is suitable bike size for her? Is it from measuring tire or frame? Thank youu

  • Tina says:

    Hello, my height is 152-154 CM. Which frame size would be good. As I just ordered a cycle with 45 frame size.. But confused.
    It’s a hybrid bike.

    • Editor says:

      Hey Tina, if your hybrid bike is 17-18″ in size, then it’s likely to big for your height. An XS or S (14″ for example) frame size would be a better fit. Hope this helps.

  • Louise says:

    Hello! Please can you help? I’ve been driving myself mad trying to find the right mountain bike size for my daughters birthday as a surprise…she is 141cm tall, inseam of 66cm? I have seen 24” bikes but some are 13” frame and some 14” frame, im so confused 🙁 thanks! Louise

    • Editor says:

      Hi Louise, considering your daughter’s inseam and height, I’d recommend a 24″ or even a 26″ bike.

      For example, both Prevelo Zulu 5 (26″) and Woom 5 (24″) would fit her reasonably well.

      If she is a confident rider, you can go with 26″ wheels, but if she is still insecure when riding, she’ll feel more confident on a 24″ bike. Hope this helps!

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