Find your child’s clothing and shoe size.

How BabySizeFinder works

Choose a brand and what you’re buying, then enter your child’s measurements. BabySizeFinder matches them to that brand’s official size chart for that item and links to the brand’s own page. For clothing, the measurements depend on the brand and what you’re buying, such as height, weight, chest or waist (age is optional, for a growth forecast); shoes use foot length.

Find baby, toddler and kids sizes by brand

Children’s sizes aren’t the same everywhere. A 2T, 4T or size 6 label can mean different measurements at different brands, and shoe sizes can differ even for the same foot length.

Use the Clothing Size Calculator for baby, toddler and kids’ clothing, including slim, husky and plus fits where a brand offers them. Use the Shoe Size Calculator to match your child’s foot length to each brand’s shoe chart.

For reference measurements, see the Kids Size Chart, or explore the Size Index 2026 to compare how size ranges differ across 49 brands. Sizes come from each brand’s published chart, and How We Check Sizes explains where each chart comes from and when it was last checked.

How to measure your child for clothes and shoes

Height or length: measure babies lying down, from the top of the head to the heel. Measure children who can stand against a wall, without shoes.

Weight: use a recent check-up weight, or weigh your child undressed or in light clothes. For a baby, use a baby scale, or weigh yourself holding the baby and subtract your own weight.

Chest and waist: needed only when the chart you choose asks for them. Measure where the brand says to, with the tape level and snug but not pulled tight. The Clothing Size Calculator shows which measurements each chart uses.

Foot length: measure both feet from the heel to the longest toe and use the longer one. If your child stands steadily, measure standing, later in the day, in the socks they’ll wear. For a baby who isn’t standing yet, keep the foot flat and the toes straight. Enter it in the Shoe Size Calculator.

Using the measurements: enter the actual numbers in the units the calculator is set to, without adding growing room; some brand charts already include it. For a between-sizes result, read the calculator’s explanation and check the brand’s or product’s own size guide.