April Wilkerson builds a growth chart ruler for kids using simple DIY methods.

Average Baby Weight at 6 Months. During the first six months, babies typically gain about 1.5 to 2 pounds each month. By 6 months of age, the average weight is approximately 16 pounds 2 ounces (7. ...

You could create your own chart, or, for those who are less handy, Lee Valley sells the blank Story Tape, a tape measure that can be used to record children’s growth. There are also portable ...