Kids’ Tennis Apparel Size Charts
Kids’ tennis apparel will vary slightly in size according to the cut and manufacturer of the garment. However, the general sizing rules below will help you get the perfect fit.
Infants Size Charts
| U.S. Size | U.K. Size | EU Size | Weight | Height |
| X-Small 0-3 months | 60 | 60 | to 13 lbs. | to 24” |
| Small 3-6 months | 67 | 67 | 13 1/2 to 17 lbs. | 24 1/2” to 27 1/2” |
| Medium 6-12 months | 74 | 74 | 17 1/2 to 23 lbs. | 28” to 30 1/2” |
| Large 12-18 months | 81 | 81 | 23 1/2 to 26 lbs. | 31” to 33” |
| X-Large 18-24 months | 86 | 86 | 26 1/2 to 29 lbs. | 33 1/2” to 35 1/2” |
Toddlers
| Age | U.S. Size | U.K. Size | EU Size |
| 18 - 24 months | 2T | 86 | 86 |
| 24 - 36 months | 3T | 94 | 94 |
| 36 - 48 months | 4T | 102 | 102 |
Girls Sizes 4x - 6x
| U.S. Size | U.K. Size | EU Size | Weight | Height |
| Small 4 | 102 | 102 | 35 to 39 lbs. | 39” to 41 1/2” |
| Medium 5 | 114 | 114 | 39 to 43 1/2 lbs. | 42” to 44 1/2” |
| Medium 6 | 120 | 120 | 43 1/2 to 48 lbs. | 45” to 47 1/2” |
| Large 6X | 126 | 126 | 48 to 54 lbs. | 48” to 50 1/2” |
Boys Sizes 4 - 7
| U.S. Size | U.K. Size | EU Size | Weight | Height |
| Small 4 | 102 | 102 | 38 to 43 1/2 lbs. | 40” to 42 1/2” |
| Medium 5 | 108 | 114 | 44 to 48 1/2 lbs. | 43” to 45 1/2” |
| Medium 6 | 120 | 120 | 49 to 55 1/2 lbs. | 46” to 47 1/2” |
| Large 7 | 126 | 126 | 56 to 58 1/2 lbs. | 48” to 49 1/2” |
Girls Sizes 7 - 16
| U.S. Size | U.K. Size | EU Size | Weight | Height
|
| Small 7 | 126 | 126 | 60 lbs. | 51” |
| Small 8 | 132 | 132 | 66 lbs. | 53” |
| Medium 10 | 138 | 138 | 74 lbs. | 55” |
| Medium 12 | 150 | 150 | 84 lbs. | 57 1/2” |
| Large 14 | 162 | 162 | 96 lbs. | 60” |
| Large 16 | 168 | 168 | 110 lbs. | 62 1/2” |
Boys Sizes 8 - 20
| U.S. Size | U.K. Size | EU Size | Weight | Height |
| Small 9 | 138 | 138 | 59 lbs. | 50” |
| Medium 10 | 150 | 150 | 73 lbs. | 54” |
| Medium 12 | 162 | 162 | 87 lbs. | 58” |
| Large 14 | 174 | 174 | 100 lbs. | 61” |
| Large 16 | 180 | 180 | 115 lbs. | 64” |
| X-Large 18 | 185 | — | 126 lbs. | 66” |
| X-Large 20 | 185 | — | 138 lbs. | 68” |
Fit Tips
- A size 18-24M (XL) in Infants is also a size 2T in Toddlers. The difference is that an Infant size garment will likely snap at the crotch.
- A size 4T and a size 4 are usually close in dimensions. The difference is the selection of styles in each.
- Generally, boys grow faster in their arms and legs before they start to gain weight (or “fill-out”). For this reason, measure your child’s inseam and check the garment’s measurement before selecting your child’s size.
- After a child outgrows a size 16 in Girl’s or 18 / 20 in Boy’s, the pre-teen or teen will move to Women’s or Men’s apparel.
Visit our Tennis Apparel Review section or return to the Tennis Apparel Size Chart main page for more helpful information.
