How to Measure Your Toddler
Toddler Boy sizing (2T, 3T, 4T) is designed for boys who are transitioning out of diapers. The cut is slimmer through the seat and rise than infant sizing, with a bit more length through the body than toddler girl sizing. Take measurements over light clothing with the tape level and snug but not tight.
Height: Stand your child straight against a wall, heels flat and barefoot, and measure from the top of the head to the floor. At this age height is the single most reliable signal for a size that will fit today and still fit in a couple of months.
Weight: Use a home scale. Weight is most useful for one-pieces, pajamas, and swimwear, where a loose fit can slip.
Chest: Measure around the fullest part of the chest, keeping the tape level under the arms. Used for tops, rash guards, and outerwear.
Waist: Measure around the natural waistline, just above the belly button. Used for bottoms, shorts, and swim trunks.
Inseam: Measure from the crotch seam down to the ankle while your child stands straight. Useful for pants, especially if your toddler is tall or short for their age.
Pro tip: If your 2-year-old is still in diapers, 24M (infant cut) often fits better than 2T — it has more room in the seat and a shorter torso. Once potty trained, 2T is a cleaner fit.
Pro tip: Boys in this age range often outgrow length before width. If height puts him in the next size but chest and waist don't, size up for length — it's much easier to cuff a sleeve than to add one.
