Speedo Size Charts for Adults and Kids
Speedo size charts consider the body in stages. Development of the body will determine the events the clothing will be used for, the stress the clothing will go through, and the desired performance benefits.
Chemical damage from pool chemicals and oil residues is the greatest deterrent to swimwear. Long-distance events pose more damage and therefore swimwear for younger children is safer.

To reduce the damage, soak the swimwear in clean water for 2-3 minutes. Cold water is best because it replicates the temperature at which the swimwear will be used in. Use soapy water only if there is a physical stain.
Jump right into the Frequently Asked Questions
Related: Swimwear Plus Size Fitting Guide for kids, men and women, How to Measure Your Body for Clothing Sizes
Speedo Size Charts Table of Contents
- Speedo Size Chart For Boy’s (4-7 years) Swimwear
- Speedo Size Chart For Boy’s (8-20 years) Swimwear
- Speedo Size Chart For Men’s Swimwear
- Speedo Size Chart For Girls (4-18 years) Swimwear
- Speedo Size Chart For Women’s Swimwear
- Frequently Asked Questions
Speedo Size Chart For Boy’s (4-7 years) Swimwear
Related: Boys Growth Chart – A Useful Size Guide For boys Shoes And Clothing
For decent performance benefits, the leg openings for children’s swimwear should not be too tight to obstruct motion and not too loose to allow water resistance to cause noticeable friction.
Global | Chest (In) | Chest (Cm) | Waist (In) | Waist (Cm) | Hip (In) | Hip (Cm) |
S | 22 | 55.9 | 22 | 55.9 | 23 | 58.4 |
M | 23 | 58.4 | 22.5 | 57.2 | 23.25 | 59.1 |
L | 24 | 61 | 23 | 58.4 | 24 | 61 |
XL | 25.5 | 64.8 | 23.5 | 59.7 | 25 | 63.5 |
Speedo Size Chart For Boy’s (8-20 years) Swimwear
Related: Arena Swimwear Sizes for Adults and Kids
Competitive age-group swimmers usually begin at this age. Competitive swimmers undergo a wide range of motion in a typical swimming event. From breaststroke events to freestyles, you can count on your Speedo to be effective.
Global | Chest (In) | Chest (Cm) | Waist (In) | Waist (Cm) | Hip (In) | Hip (Cm) |
XS | 25.5 | 64.8 | 23.5 | 59.7 | 25 | 63.5 |
S | 27.5 | 69.9 | 24 | 61 | 27.25 | 69.2 |
M | 29.5 | 74.9 | 25.5 | 64.8 | 30 | 76.2 |
L | 32.5 | 82.6 | 27.5 | 69.9 | 34 | Â 86.4 |
XL | 35.5 | 90.2 | 29.5 | 74.9 | 37 | 94 |
Speedo Size Chart For Men’s Swimwear
Related: European men’s clothing size – European sizes into US, UK,… sizes
A correct Speedo size chart for men differs from that for boys mainly in the measurements for chest size. Men’s swimwear needs to provide enough body compression as there is a possibility that they might end up in a race event involving distance swimmers.
They are also designed to work with accessories. There is no point in swim goggles slipping off regularly because of the swimsuit.
Global | Chest | Waist | Hip |
0S | 29 In 73.7 Cm | 23 In 58.4 Cm | 27 In 68.9 Cm |
4XS | 31 In 78.7 Cm | 25 In 63.5 Cm | 29 In 73.7 Cm |
XXXS | 33 In 83.8 Cm | 27 In 68.9 Cm | 31 In 78.7 Cm |
XXS | 35 In 88.9 Cm | 29 In 73.7 Cm | 33 In 83.8 Cm |
XS | 37 In 94 Cm | 31 In 78.7 Cm | 35 In 88.9 Cm |
S | 38 In 96.5 Cm | 32 In 81.3 Cm | 36 In 91.4 Cm |
M | 40 In 101.6Cm | 34 In 86.4 Cm | 38 In 96.5 Cm |
L | 42 In 106.7 Cm | 36 In 91.4 Cm | 40 In 101.6 Cm |
XL | 44 In 111.8 Cm | 38 In 96.4 Cm | 42 In 106.7Cm |
Speedo Size Chart For Girls (4-18 years) Swimwear
Related: Girls Growth Size chart – A Useful Guide For Shoes And Clothing
Fitting garments for growing women can be quite tricky. Apart from body height, the manufacturer also needs to cater to a changing chest-bust ratio.
With the aid of 4-way flat seams, Speedo uses these measurements for young ladies.
Global | Chest | Waist | Hip | Torso |
4 | 22 In 55.9 Cm | 22 In 55.9 Cm | 23 In 58.4 Cm | Â 38â…ś In 97.5 Cm |
5 | 23 In 58.4 Cm | 22.5 In 57.2 Cm | 24 In 61 Cm | 40.5 In 102.9 Cm |
6 | 24 In 61 Cm | 23 In 58.4 Cm | 25 In 63.5 Cm | 42â…ś In 107.6Cm |
6X | 24.75 In 62.9 Cm | 23.5 In 59.7 Cm | 25.75 In 65.4 Cm | 43 In 109.2 Cm |
7 | 26 In 66.0 Cm | 23.5 In 59.7 Cm | 27.5 In 69.9 Cm | 44â…ť In 113.3 Cm |
8 | 27 In 68.6 Cm | 24.75 In 62.9 Cm | 28.5 In 72.4 Cm | 46ÂĽ In 117.5 Cm |
10 | 28.5 In 72.4 Cm | 25 In 63.5 Cm | 30 In 76.2 Cm | 48â…› In 122.2 Cm |
12 | 30 In 76.2 Cm | 26 In 66.0 Cm | 32 In 81.3 Cm | 50⅝ In 128.6 Cm |
Speedo Size Chart For Women’s Swimwear
Related: Plus Size Shapewear Sizing Guide, Skims size chart for underwear or shapewear for women
First things first, your dress size is not necessarily your Speedo size. Depending on body type, the right size waist plays an important size in typical waist hip Speedo size ratios.
US | Global | Chest | Waist | Hip | Torso |
4 | 32 | 35 In 88.9 Cm | 27 In 68.6 Cm | 37.5 In 95.3 Cm | 60.5 In 153Cm |
6 | 34 | 36 In 91.4 Cm | 28 In 71.1 Cm | 38.5 In 97.8 Cm | 62 In 157.5Cm |
8 | 36 | 37.5 In 95.3 Cm | 29.5 In 74.9 Cm | 40 In 101.6 Cm | 63.5 In 160.5 Cm |
10 | 36 | 39 In 99.1 Cm | 31 In 78.7 Cm | 41.5 In 105.4Cm | 65 In 165.1 Cm |
12 | 38 | 40.5 In 102.9Cm | 32.5 In 82.6 Cm | 43 In 109.2 Cm | 66.5 In 169 Cm |
14 | 40 | 42 In 106.7Cm | 34 In 86.4 Cm | 44.5 In 113.0 Cm | 68 In 172.7 Cm |
16 | 42 | 43.5 In 110.5Cm | 35.5 In 90.2 Cm | 46 In 116.8Cm | 69.5 In 176.5 Cm |
18 | 42 | 45.5 In 115.6Cm | 37.5 In 95.3 Cm | 48 In 121.9Cm | 71 In 180.3 Cm |
20 | 44 | 47.5 In 120.7Cm | 39.5 In 100.3 Cm | 50 In 127 Cm | 72.5 In 184.2 Cm |
22 | 44 | 49.5 In 125.7Cm | 41.5 In 105.4Cm | 52 In 132.1 Cm | 74 In 188 Cm |
Learn more about Speedo Sizing in this video
Frequently Asked Questions
How do I know my Speedo size?
For the perfect size, measure focus on your body loop measurement and bust measurements. High contrast between your chest and bust measure is good enough reason for you to skip on to the next size.
If you are a man, things are pretty straightforward, measure yourself and pick your size. If your measurements fall between sizes, pick the larger size.
How do I buy the right size tech suit?
The difference between tech suits and “non-tech” suits (forgive the term), is not in size but in fabric and intended use. Speedo tech suits are popular tech suits that are known for maximizing the speed and effort of the swimmer by reducing drag.
To buy a better one, just consort the size charts after measuring yourself as accurately as possible. For best accuracy, measure in a physical store. If that is not possible, then let a friend measure you.
As long as your measurements are correct, your tech suit will most likely be a great fit.
Is Speedo true to size?
Yes, but with a twist. Speedos are designed to be snug. Previous flagship tech suits and budget tech suits are known for being so streamlined that swimmers who don’t appreciate a body-tight water-resistant fabric usually size up.
Should I size up or down for a Speedo?
If you don’t want tight-fit suits, especially their advanced tech suits and flagship suits, then it is advisable to size up. But if you are buying regular swimwear, there is really no need to buy any other size than your size.
What size is a 12 in Speedo?
Ladies size 12 in Speedo is global size 38. It is made for a chest of 40.5 inches, a waist of 32.5 inches, a hip measurement of 43 inches, and a torso length of 66.5 inches.
In metric units, all these translate into: 102.9 cm for the chest, 82.6 cm for the waist, 109.2 cm for the hip, and a torso of 169 cm.
What size is 20 in Speedo?
US size 20 is global size 44. If the measurements are in inches then the size is meant for a chest of 47.5, a torso of 72.5, a waist of 39.5, and a hip of 50 inches.
Meanwhile, metric measurements go as follows chest of 120.7 Cm, the torso of 184.2 Cm, waist of 100.3 Cm, and hip of 127 Cm.
Conclusion
Speedo policies allow retailers to consider customer objectives when designing their customer service. In other words, retailers are allowed to use their discretion to decide what they plan to do with the customers.
This is so as to allow retailers to tailor their actions to the needs of the particular market they are dealing with. Some retailers are fun and returns due to sizing are easy, while others are more difficult. The best case scenario is to not get the size wrong to begin with.
Speedo does enhance speed and performance, but before you go cutting through the ripple please do us a speedy favor and leave a comment. If you could find it in your heart to share the article, we will be very delighted.
Picture in this post is by Malik Skydsgaard on Unsplash
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