There's no single average height for a 2-month-old baby. Height varies significantly depending on factors like genetics, sex, and overall health. However, you can find average ranges in growth charts provided by pediatricians and organizations like the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC). These charts usually show percentiles, meaning a baby's height relative to other babies of the same age and sex.
To get a meaningful answer, you'd need to consult these charts. Looking up "baby growth chart" online will give you access to many resources. Keep in mind that a baby's height falling outside the average range isn't necessarily a cause for concern; it's important to consider the overall growth pattern and consult with a pediatrician for any worries.