In 3-year-olds, growth is still slow compared to the first year. Most children have become slimmer and lost the rounded tummy of a toddler. While all children may grow at a different rate, the following indicate the average for 3-year-old boys and girls.
- Weight: average gain of about 4 to 6 pounds per year
- Height: average growth of about 2½ to 3 inches per year