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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. SizeU.K. SizeEU SizeWeightHeight
X-Small 0-3 months6060to 13 lbs.to 24”
Small 3-6 months676713 1/2 to 17 lbs.24 1/2” to 27 1/2”
Medium 6-12 months747417 1/2 to 23 lbs.28” to 30 1/2”
Large 12-18 months818123 1/2 to 26 lbs.31” to 33”
X-Large 18-24 months868626 1/2 to 29 lbs.33 1/2” to 35 1/2”

Toddlers

AgeU.S. SizeU.K. SizeEU Size
18 - 24 months2T8686
24 - 36 months3T9494
36 - 48 months4T102102

Girls Sizes 4x - 6x

U.S. SizeU.K. SizeEU SizeWeightHeight
Small 410210235 to 39 lbs.39” to 41 1/2”
Medium 511411439 to 43 1/2 lbs.42” to 44 1/2”
Medium 612012043 1/2 to 48 lbs.45” to 47 1/2”
Large 6X12612648 to 54 lbs.48” to 50 1/2”

Boys Sizes 4 - 7

U.S. SizeU.K. SizeEU SizeWeightHeight
Small 410210238 to 43 1/2 lbs.40” to 42 1/2”
Medium 510811444 to 48 1/2 lbs.43” to 45 1/2”
Medium 612012049 to 55 1/2 lbs.46” to 47 1/2”
Large 712612656 to 58 1/2 lbs.48” to 49 1/2”

Girls Sizes 7 - 16

U.S. SizeU.K. SizeEU SizeWeightHeight
Small 712612660 lbs.51”
Small 813213266 lbs.53”
Medium 1013813874 lbs.55”
Medium 1215015084 lbs.57 1/2”
Large 1416216296 lbs.60”
Large 16168168110 lbs.62 1/2”

Boys Sizes 8 - 20

 
U.S. SizeU.K. SizeEU SizeWeightHeight
Small 913813859 lbs.50”
Medium 1015015073 lbs.54”
Medium 1216216287 lbs.58”
Large 14174174100 lbs.61”
Large 16180180115 lbs.64”
X-Large 18185126 lbs.66”
X-Large 20185138 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.