Instead, you can use a chronological age calculator by inputting the date of birth as well as what exact date you want to calculate their age on. If you want to calculate someone’s exact chronological age, meaning down to the number of days, that’s a bit harder to do with just some mental math. Someone who was born in 1972 would be 51 years old in 2023 (2023 minus 1972 is 51). You may have your age cemented in your memory as you prepare for your birthday party every year, but what if you want to calculate someone else’s chronological age? One way would be to take the current year and subtract the year they were born. With chronological age in mind, you’ll know not only how many candles to put on someone’s birthday cake, but also what age to check against with developmental age. Normally chronological age is given solely in years, as in “27 years old.” But, if you want to get super specific with it, you can also figure out how old you are down to the month, week, and day. For example, if someone was born in 1958 then their chronological age would be 65 in the year 2023. It’s the measurement of how much time has passed since someone’s birth to the present. The Definition of Chronological AgeĬhronological age is the standard we think of when we think of age and what we answer when someone asks, “How old are you?”. If you’re not comfortable determining someone’s developmental age on your own, it’s a good idea to speak with a doctor or specialist in that specific area of concern in order to get their professional assessment. For example, the CDC offers a milestones checklist that you can refer to, and the non-profit also has its own downloadable checklists. You can find a variety of different resources on the internet for this kind of monitoring. To determine a child’s developmental age, you would need to assess their skills against the various age benchmarks. Other times, they may need additional assistance to progress, or it could be a sign of a medical condition that needs attention. Sometimes developmental delays sort themselves on their own and a child “catches up” so to speak. It’s particularly helpful for parents to keep in mind developmental age so that they can track whether a child is advancing as expected in terms of their physical and mental wellbeing. So, a child could be five years old but have the language skills of a three or four-year-old if they’re unable to meet benchmarks for their age range-like describing objects or understanding rhyming. For example, the CDC specifies that at 1 year old, most children walk while holding onto furniture while at five years old, most kids can count to 10.ĭevelopmental age can be used to measure a child’s development across a range of categories, including verbal, emotional, and motor skills. The Definition of Developmental Ageĭevelopmental age refers to a person’s physical and/or mental development in respect to an age unit, as in the age at which a majority of people have achieved that milestone. chronological age, examining what each is and why they’re both important. So let’s take a closer look at developmental age vs. It may seem unusual to think that these ages don’t always match up throughout our lives, but it’s useful to keep both numbers in mind-especially in relation to one another-to make sure someone’s growth is on track and that they have the proper support that they need to thrive. Have you ever heard someone describe a person as “smart for their age”? Or maybe you’ve heard that interesting fact that girls’ brains are years more mature than boys during puberty? At the root of both of these sentiments is this idea of developmental age being one thing and chronological age another.
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