How to Calculate Toddler Age

As a child grows from babyhood to toddlerhood, many changes and milestones occur. A baby moves from crawling to cruising to walking over a period of months, moving from the baby phase to the toddler phase. Once a small child graduates to walking, the true toddler stage begins -- usually sometime around the first birthday. Most parents count toddler age by months for the first two or three years. .

Instructions

    • 1

      Note the day of the month your child was born. When this date arrives each month, you will adjust your toddler's age to the next month. For example, if your child was born on July 7, when the seventh arrives each month, your child will advance one month.

    • 2

      Use 12 months for every year of your toddler's age to figure the base age. For example, if your toddler is one, the base age is 12 months. You will add the additional months to this number.

    • 3

      Determine how many months you must add to the base age. For each month that elapses past your child's birth date, you must add one month to the base age. Using the same example, if the date is September 10 and your child was born on July 7th of the previous year, you start with 12 months for the base age. Add one month for August and another month for September -- your toddler is 14 months old.

    • 4

      Add one month to your toddler's age every time the birth date number arrives each month. Using the same example, on the seventh of each month, add one month to your toddler's age. When the second birthday arrives, 24 becomes the base age and you can continue adding months to this base age, as time goes by.

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