Choose what you're buying, then enter your baby's weight and height. See the matching size at every major US and Canadian baby brand side by side, plus how much room is left before the next size.
Leave blank to compare all brands.
Example values are filled in. Measure length lying down, from the top of the head to the heel.
Pick the baby's age when they'll actually wear it. Sizes are based on a typical baby of that age (WHO growth standard averages). If the baby runs big, go one size up.
With their age, we forecast from your baby's own growth. Leave it blank to use an average baby.
Choose a brand at the top to see its full size chart here.
These brands publish their size charts only as images or per product. We'll add them once the numbers are confirmed.
Each brand sets its own ranges. A 13 lb baby is a 6M at Carter's but a 3–6M at Gerber. Most American brands size by weight and height. European-style brands like H&M size by height in centimeters, so a size 68 fits a baby up to 68 cm long.
Yes. Choose the brand in "Which brand are you shopping for?" at the top. You'll get one clear answer, the sizes just above and below it, and that brand's full chart. Choose "Compare all brands" to see every brand side by side again.
Some brands publish separate charts for each kind of clothing. Carter's pants chart uses waist, and its jacket chart uses chest and allows for layers. When a brand has only one chart, we use it for all clothing and label the tag "General chart".
Check both. If they point to different sizes, choose the bigger one. A size that's too long is still wearable; one that's too short in the body won't close.
In the US, children's sleepwear must either be flame-resistant or fit snugly. Many brands, including Burt's Bees Baby and Gerber, make close-fitting cotton pajamas, so a snug fit is normal. Buy the size the chart gives rather than going bigger.
Have your child stand, then measure the longer foot from the back of the heel to the tip of the longest toe. Choose the size whose foot length is at or just above that number.
When the meter on a tag is near the top, or snaps start pulling across the belly or legs. Most babies move up a size every 2 to 3 months in the first year.