Not every child grows up at the same rate, which is what makes shopping for clothes for kids a hassle. However, if you know the exact height and weight measurements, as well as your child’s age, then shopping for clothes—even online—can be less of a struggle.
In this guide, I’ll help moms and dads find clothes for their kids. Below, you’ll find different charts describing the correct size clothing for small, medium, and large clothing for US youth.
Clothing Size Charts for Babies and Toddlers
| Size | Height (inches) | Weight (pounds) |
| Preemie | < 17 | > 5 |
| Newborn | 17.5-20 | 5.5-7.5 |
| 0-3 Months | 20.5-23 | 6.5-12 |
| 3-6 Months | 23.5-26 | 12.5-16 |
| 9-9 Months | 26.5-27.5 | 16.5-19 |
| 12 Months | 28-29.5 | 19.5-22 |
| 18 Months | 30-31.5 | 22.5-26 |
| 2T | 32-33.5 | 26.5-30 |
| 3T | 34-37.5 | 30.5-34 |
| 4T | 38-41.5 | 34.5-38 |
| 5T | 42-44.5 | 38.5-42 |
Note: Sizes 2T through 5T refer to toddler sizes aged 1 through 5 years old
Clothing Size Charts for Girls
Shirts for Young Girls (5-14 years old)
| Size | Height (inches) | Chest (inches) | Waist (inches) | Hip (inches) |
| Number | Letter |
| 4 | XS | 39-41.5 | 23 | 21 | 23 |
| 5 | XS | 42-44.5 | 24 | 21.5 | 24 |
| 6 | S | 45-46.5 | 25 | 22 | 25.5 |
| 6X | S | 47-48.5 | 26 | 23 | 26.5 |
| 7 | M | 49-50.5 | 27 | 24 | 28 |
| 8 | M | 51-53 | 28 | 25 | 29.5 |
| 10 | L | 53.5-55 | 29 | 26 | 30.5 |
| 12 | L | 55.5-57.5 | 30.5 | 27 | 32 |
| 14 | XL | 58-60 | 31.5 | 28 | 33 |
| 16 | XL | 60-62 | 33 | 29 | 34.5 |
| 18 | XXL | 62-64 | 34 | 30 | 35.5 |
| 20 | XXL | 64-66 | 35.5 | 31 | 37 |
Pants for Young Girls (2-7 years old)
| Size | Age (years) | Length (inches) | Weight (pounds) |
| Number | Letter |
| 2T | 2T | 2 | 33-35 | 24-29 |
| 3T | 3T | 3 | 35-38 | 29-33 |
| 4T | 4T | 4 | 39-41 | 33-37.5 |
| 4 | S | 3-4 | 42-44 | 37.5-42 |
| 5 | M | 4-5 | 45-47 | 42-46 |
| 6 | L | 5-6 | 48-49 | 46-53 |
| 6X | XL | 6-7 | 50-52 | 53-58 |
Pants for Teen Young Women (7-14 years old)
| Size | Age | Height (inches) | Waist (inches) | Hips (inches) |
| Number | Letter |
| 7-8 | S | 6-7 | 51-52 | 22.5 | 28 |
| 7-8 | S | 7-8 | 53-54 | 23.5 | 29 |
| 10-12 | N | 8-9 | 55-56 | 24.5 | 30 |
| 10-12 | M | 10-11 | 57-59 | 25.5 | 31.32 |
| 14 | L | 11-12 | 60-62 | 26.5 | 33-34 |
| 16 | XL | 13-14 | 27.5 | 27.5 | 35-36 |
Clothing Size Charts for Boy
Shirts for Young Boys (5-14 years old)
| Size | Height (inches) | Chest (inches) | Waist (inches) | Hip (inches) |
| Number | Letter |
| 4 | XS | 39-41.5 | 23 | 21 | 23 |
| 5 | XS | 42-44.5 | 24 | 21.5 | 24 |
| 6 | S | 45-47.5 | 25 | 22.5 | 25 |
| 7 | S | 48-49.5 | 26 | 23.5 | 26 |
| 8 | M | 50-52 | 26.5 | 24.5 | 27.5 |
| 10 | L | 52.5-55.5 | 27 | 25.5 | 28.5 |
| 12 | L | 56-58 | 28 | 26.5 | 30 |
| 14 | XL | 58.5-60.5 | 29.5 | 27.5 | 30.5 |
| 16 | XL | 58.5-60.5 | 30 | 28 | 31.5 |
| 17 | XXL | 61-64 | 30.5 | 28.5 | 32 |
| 18 | XXL | 64.5-66.5 | 31 | 29 | 33 |
| 20 | XXXL | 64.5-66.5 | 32.5 | 30 | 34 |
Pants for Young Boys (2-14 years old)
| Size | Age (years) | Length (inches) | Weight (pounds) |
| Number | Letter |
| 2T | 2T | 2 | 33-35 | 24-29 |
| 3T | 3T | 3 | 35-38 | 29-33 |
| 4T | 4T | 4 | 39-41 | 33-37.5 |
| 4 | S | 3-4 | 42-44 | 37.5-42 |
| 5 | M | 4-5 | 45-47 | 42-46 |
| 6 | L | 5-6 | 48-49 | 46-53 |
| 7 | XL | 6-7 | 50-52 | 53-58 |
Pants for Teen Young Men (5-14 years old)
| Size | Age | Height (inches) | Waist (inches) | Hips (inches) |
| Number | Letter |
| 8 | S | 5-8 | 50-53 | 23-24 | 28 |
| 10-12 | M | 8-9 | 54-57 | 24-25 | 29 |
| 10-12 | M | 10-11 | 58-60 | 25.5-26.5 | 30 |
| 14-16 | L | 11-12 | 61-63 | 26.5-28 | 31-32 |
| 14-16 | L | 12-13 | 64-65 | 28-29 | 33-34 |
| 18-20 | XL | 13-14 | 65-66 | 29-30 | 34-35 |
| 18-20 | XL | > 14 | 66-67 | 30-31 | 35-36 |
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