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Calvin Klein Size Charts

Calvin Klein Boys Underwear, Loungewear & Swim Size Chart

Measurement Unit: US (inch) | World (cm) | Both

Size	Age	Waist	Weight
XS	4 - 5 years	20 - 21 inch 51 - 53 cm	33 - 42 lb 15 - 19 kg
S	6 - 7 years	22 - 23 inch 56 - 58 cm	43 - 58 lb 20 - 26 kg
M	8 - 10 years	24 - 25 inch 61 - 64 cm	59 - 73 lb 27 - 33 kg
L	12 - 14 years	26 - 27 inch 66 - 69 cm	74 - 100 lb 34 - 45 kg
XL	16 - 18 years	28 - 30 inch 71 - 76 cm	101 - 126 lb 46 - 57 kg

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Length Conversion

Note: 1 inch = 2.54 cm, 1 cm = 0.394 inch, 1 foot = 30.48 cm, 1 cm = 0.033 foot, 1 foot = 12 inch, 1 inch = 0.083 foot

Essential Tools

If you do a lot of online apparel shopping, accurate body measurement using a tape measure is a must. The actual tape you choose doesn’t matter that much. This measuring tape set has two double-sided, 60-inch / 150 cm, durable tape measure in pink and black. They are small and light pocket-size measuring tapes, and they have accurate, large and clear markings in both inches and centimeters, which are very easy and convenient to read. They are also great for body measurement, sewing, tailoring, weight loss tracking, or measuring any curved surface.

How to measure without a ruler or tape measure?

If you don't have a ruler or tape measure handy, you can try to measure with a standard credit card, which has a width of 3 ⅜ inch or 8.56 cm and a height of 2 ⅛ inch or 5.4 cm.