Baby Onesie - Size Chart

  NB (0M) Preemie 3-6M 6-9M NB (0-3M) 12M 18M 24M
Height, in 17.01 - 20.98 0.00 - 17.01 24.02 - 25.98 25.98 - 27.99 20.98 - 24.02 27.99 - 30.00 30.00 - 32.01 32.01 - 34.02
Weight, lb 5.07 - 7.94 0.00 - 5.07 11.90 - 16.09 16.09 - 20.06 7.94 - 11.90 20.06 - 24.03 24.03 - 28.00 28.00 - 31.97