Baby Onesie Size Chart

Baby Onesie flat garment measurements (in).

Double the chest width for the total. Compare to another garment or to personal measurements.

Chest Width Length (Center Back to Snap Hem)
3/6 Month 8" 15.25"
6/12 Month 8.75" 16.25"
12/18 Month 9.5" 17.25"
18/24 Month 10.25" 17.75"
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