Average Height and Weight for Teenagers (Ages 13-19)

* A quick note before diving in: the growth chart below reflects averages, not targets. Family history, overall health, and where your teen is in their individual growth timeline matter far more than matching a specific number on a chart.

Key Takeaways

• Teen growth varies considerably by age and gender — girls tend to hit their growth spurts earlier than boys do, sometimes by a couple of years.

• Genetics, nutrition, sleep quality, physical activity, and hormonal shifts all shape how tall your teen grows and how their weight changes over time.

• A well-rounded diet, consistent movement, good hydration, and enough sleep form the real foundation of healthy adolescent development.

• Growth charts give you useful context, but every teen's trajectory is their own — influenced by genetics, daily habits, and general health.

Average Height and Weight for Teenagers (Age 13-19)

Keeping an eye on your teen's height and weight over time gives you a useful window into how they're developing. Below is a breakdown of average measurements for boys and girls from ages 13 through 19. Think of it less as a pass/fail chart and more as a general map of what the teenage growth arc tends to look like.

* Data sourced from Disabled World.

Average height and weight for 13 year olds

Thirteen is right at the edge of puberty for most kids — and the timing varies more than people realize. Girls generally get a head start on their growth spurt, which is why the numbers between genders are surprisingly close at this age. Give it a year, and the gap widens fast.

• 13-year-old girls: Average height lands around 61.7 inches (156.7 cm), with an average weight of 101.0 lbs (45.8 kg).

• 13-year-old boys: Average height comes in just slightly lower at 61.5 inches (156.2 cm) — boys typically enter puberty around 12 to 13, so they're often still in the early stages. Average weight is roughly 100.0 lbs (45.4 kg).

At 13, visible changes are starting to show up: noticeable height gains, shifts in weight, and the early development of secondary sexual characteristics. It's a mixed bag of physical change happening all at once.

Average height and weight for 14 year olds

By 14, gender differences in growth become much harder to ignore. Most boys kick into their rapid growth phase around now, while girls — who already got a head start — begin to level off somewhat. The numbers start to diverge more noticeably here.

• 14-year-old girls: Typically reach around 62.5 inches (158.7 cm) and weigh approximately 105.0 lbs (47.6 kg).

• 14-year-old boys: Average height jumps to 64.5 inches (163.8 cm), with average weight around 112.0 lbs (50.8 kg).

Weight gain at this stage comes from a combination of muscle development and natural fat accumulation — both of which are completely normal parts of puberty, not something to panic about.

Average height and weight for 15 year olds

At 15, girls are often approaching the tail end of their main growth phase. Boys, on the other hand, are still climbing — steadily gaining both height and weight as their puberty timeline plays out a bit later.

• 15-year-old girls: Typically measure around 62.9 inches (159.7 cm) and weigh approximately 115.0 lbs (52.2 kg).

• 15-year-old boys: Usually reach 67.0 inches (170.1 cm) and weigh about 123.5 lbs (56.0 kg).

This tends to be a pivotal stretch for physical maturation. Lean muscle mass increases, the body starts to take on a more adult shape, and both height and weight reflect that shift.

Average height and weight for 16 year olds

For girls, 16 often marks the point where height growth essentially wraps up. Boys are still in the middle of it, continuing to gain height and build out muscle mass through this period and sometimes beyond.

• 16-year-old girls: Average height settles around 64.0 inches (162.5 cm), with typical weight around 118.0 lbs (53.5 kg).

• 16-year-old boys: Average height reaches 68.3 inches (173.4 cm), and average weight is roughly 134.0 lbs (60.8 kg).

Weight changes at 16 are increasingly tied to muscle development, especially for teens who are active in sports or structured exercise. The body is building itself out, not just up.

Average height and weight for 17 year olds

By 17, most girls have reached their adult height. Boys may still have a bit more growing to do, though the pace has slowed compared to the rapid spurts of earlier teen years.

• 17-year-old girls: Most measure around 64.0 inches (162.5 cm) and weigh approximately 120.0 lbs (54.4 kg).

• 17-year-old boys: Average height is 69.0 inches (175.2 cm), with average weight around 142.0 lbs (64.4 kg).

Body composition tends to stabilize more around this age — the ratio of muscle to fat starts to reflect a more adult pattern, and the dramatic fluctuations of early puberty begin to even out.

Average height and weight for 18 year olds

Most 18-year-olds have hit their adult height, though boys who are late developers might still pick up a little more. Weight at this point varies more based on activity level, diet, and individual build than on any standard growth pattern.

• 18-year-old girls: Average height is about 64.2 inches (163 cm), with average weight around 125.0 lbs (56.7 kg).

• 18-year-old boys: Average height comes in at roughly 69.2 inches (175.7 cm), and average weight is approximately 147.5 lbs (66.9 kg).

The transition into adulthood is largely underway at 18 — hormonal shifts are tapering, physical changes are slowing, and the body is settling into its longer-term form.

Average height and weight for 19 year olds

At 19, most teens have reached their full adult height. Growth in terms of stature is mostly done, though weight can still shift with changes in muscle mass, activity habits, or lifestyle.

• 19-year-old girls: Typically measure 64.2 inches (163 cm) and weigh around 126.0 lbs (57.2 kg).

• 19-year-old boys: Average height is 69.5 inches (176.5 cm), with average weight around 152.0 lbs (68.9 kg).

What Affects Teen Height and Weight?

Growth during the teen years isn't random — it's shaped by a combination of factors working together, sometimes in ways that aren't obvious. Genetics sets the boundaries of what's possible. But what actually happens within those boundaries? That part comes down to nutrition, sleep, movement, hormones, and things like gut health and stress that most people don't even think to consider. Here's how each one fits into the picture.

Genetics

Height is largely inherited. If both parents are tall, the odds favor a taller child — that's not surprising [1]. But genetics isn't the whole story. It's more like a ceiling and a floor. The space in between? That's where nutrition, lifestyle, and overall health get to do their work. Two kids with identical family backgrounds can end up at different heights depending on how those other factors play out during their development.

Nutrition

Food is arguably the most controllable factor in teen growth. Protein, calcium, and vitamin D are the heavy hitters here — each playing a specific role [2]:

• Protein: Supports muscle and tissue development, helping the body build lean mass during growth spurts.

• Calcium: Critical for bone density and strength, especially during the periods when bones are growing fastest.

• Vitamin D: Helps the body actually absorb the calcium it takes in — without it, calcium doesn't do its job as effectively.

If your teen has a limited appetite or genuinely struggles to cover their nutritional bases through food alone, height supplements for teenagers like multivitamins or calcium can play a supporting role. But they're supplements, not substitutes. Real food still comes first, and it's worth checking with a healthcare provider before adding anything to the routine.

Sleep

Sleep is when a lot of the actual growing happens. Growth hormone is released during deep sleep — particularly in those first few hours of the sleep cycle — driving tissue repair and bone development. **Teenagers need 8 to 10 hours per night**, and that's not a rough guideline, it's a real biological requirement during this phase of life. Cutting sleep short doesn't just make teens tired. It disrupts growth hormone production and can throw off metabolism in ways that make maintaining a healthy weight harder over time.

Physical activity

Exercise does more for growth than most people give it credit for. Physical activity stimulates the release of human growth hormone (HGH), which plays a direct role in height development and muscle building. It also increases circulation — meaning more oxygen and nutrients reach the bones and muscles that are actively growing. The type of exercise matters less than the consistency. Regular movement, whether it's sports, gym time, or just being active throughout the day, supports the whole system.

Hormones and puberty

Puberty is the engine driving most of the growth that happens during the teen years. Growth hormone, estrogen (in girls), and testosterone (in boys) are the main players — triggering bone growth, shifting body composition, and influencing fat distribution in ways that are distinctly different between genders.

Girls typically experience their main growth spurt between ages 10 and 14. Boys tend to hit theirs between 12 and 16. It's not just about getting taller, either — puberty reshapes the entire body, including how muscle mass develops and where fat is stored. That's why two teenagers the same age can look dramatically different physically, and both be completely normal.

Mental and gut health

These two don't get enough attention in conversations about teen growth, but they're genuinely important.

Chronic stress, anxiety, and depression can disrupt the hormonal balance that regulates growth. When stress hormones run high for extended periods, they interfere with sleep quality, reduce appetite, and impair how well the body absorbs nutrients — all of which have downstream effects on physical development.

Gut health is the other piece. A well-balanced gut microbiome supports better nutrient absorption and digestion — meaning your teen's body can actually use what they're eating. Fiber, prebiotics, and probiotics all help maintain that balance. And checking in on your teen's emotional state regularly? That matters too, even when nothing seems obviously wrong.

How to Increase Height for Teenagers?

Understanding what drives growth is one thing — translating it into daily habits is another. The good news is that the actions that support height and healthy weight development aren't complicated. They come down to what your teen eats, how they move, how well they sleep, and a few overlooked habits around posture and hydration.

Balanced meals

A nutrient-dense diet is the most direct lever you have. A well-balanced plate covers all the bases that growing bodies need:

• Protein: Lean meats, eggs, beans, and plant-based sources all support muscle and tissue growth — the structural work of development.

• Fruits and vegetables: The vitamins and minerals here support everything from immune function to bone health to digestion. Variety matters more than volume.

• Whole grains: These provide steady energy and fiber, which keeps metabolism and digestion running smoothly.

• Healthy fats: Avocados, nuts, seeds, and olive oil support brain development and hormone regulation — both of which are actively happening throughout the teen years.

Smart snack ideas

Snacks aren't just filler — for teens with high energy demands or busy schedules, they're a genuine opportunity to pack in extra nutrients. A few options that actually deliver:

• Greek yogurt with berries: High in protein and calcium, useful for muscle repair and bone support.

• Nut butter on whole grain crackers: Combines healthy fats with fiber — good for satiety and sustained energy.

• Trail mix with nuts and seeds: Portable, calorie-dense in a good way, and full of protein and healthy fats.

• Cheese with vegetables: A practical way to hit calcium and vitamin D targets without much effort.

• Boiled eggs with veggies: High-quality protein paired with vitamins — straightforward and effective.

During growth spurts or periods of heavy physical activity, these kinds of snacks make a real difference in whether your teen's body has what it needs to keep developing.

Hydration

Hydration is one of those things that seems obvious but often gets neglected, especially with teenagers who are busy, active, or just not paying attention to it. Dehydration shows up as fatigue, difficulty concentrating, and headaches — none of which help a body that's trying to grow and recover.

Aim for at least **8 to 10 cups (64 to 80 ounces)** of water daily, with more on days involving intense exercise or hot weather. Herbal teas and fresh fruit juice in reasonable amounts can also contribute. What to watch: sugary drinks like sodas and most sports drinks tend to undermine hydration more than they support it, and contribute to energy crashes that affect both performance and recovery.

Daily movement

Physical activity during the teen years benefits growth in more ways than one. Here's a practical breakdown by type:

Strength training

• Sessions of 20 to 30 minutes, roughly 3 to 4 days per week, work well as a starting point.

• Bodyweight exercises — squats, push-ups, lunges — build muscle mass without requiring equipment or gym access.

• Start with lighter resistance and prioritize form over load. Building up gradually reduces injury risk significantly.

Cardio

• Around 150 minutes of moderate-intensity cardio per week is a reasonable target — roughly 30 minutes, five days a week.

• Jogging, swimming, or cycling all work well. They improve circulation, cardiovascular health, and overall endurance.

• Rotating activities keeps things from getting stale — biking with friends or swimming laps feel less like "exercise" and more like something worth actually doing.

Stretching and flexibility

• 10 to 15 minutes of stretching after workouts or at the end of the day is enough to make a difference in posture and flexibility.

• Yoga, basic hamstring stretches, shoulder rolls, or Pilates are all solid options — they support posture and reduce injury risk over time.

• Slow, controlled movements are the goal here. Bouncing or forcing a stretch past the point of discomfort tends to do more harm than good.

Posture and movement during study hours

Good posture affects more than how someone looks — it has real implications for spinal health and, indirectly, for how the body carries itself as it grows. Teens who spend hours hunched over desks or screens are stacking up a different kind of problem than those who stay aware of their alignment.

Encourage your teen to sit with their back straight, shoulders back, and feet flat on the floor during long study sessions. A few simple habits make a noticeable difference:

• Spine-care basics: Proper seated posture — back supported, shoulders neutral — reduces the strain that accumulates over hours of desk time.

• Desk stretches: Shoulder rolls, gentle neck stretches, and back twists done periodically help counter stiffness and keep circulation moving.

• Standing breaks: Getting up every 30 minutes — even briefly — makes a difference. If a standing desk is an option, it's worth considering.

Sleep routine checklist

Deep sleep is when the body does the bulk of its growth-related repair work. Growth hormone release peaks during the **first few hours** of the sleep cycle — so it's not just about hours logged, it's about sleep quality. Building a consistent routine around sleep is one of the highest-impact things a teen can do for their development:

• Set a consistent bedtime: Targeting 8 to 10 hours nightly gives the body enough time to complete its repair and growth cycles.

• Wind down before sleep: Reading, low-key music, or other calming activities in the 30 minutes before bed help signal that it's time to shift down.

• Cut screen time early: Blue light from phones and screens suppresses melatonin — the hormone that triggers sleep onset. Avoiding screens for at least 30 minutes before bed makes a real difference in how quickly and deeply teens fall asleep.

• Optimize the sleep environment: A dark, quiet, and slightly cool room — roughly 65°F (18°C) — tends to produce better sleep quality for most people.

Growth looks different for every teen, and no checklist captures all of it. But a balanced daily routine — one that covers food, movement, sleep, and stress — creates the conditions where that growth is most likely to happen well.

In conclusion,

Knowing the average height and weight benchmarks for teenagers gives you useful context for monitoring how your teen is developing during these critical years. Genetics provides the starting point, but nutrition, sleep, physical activity, and overall health habits do a lot to shape the final picture. Encouraging those habits — without fixating on specific numbers — is the most meaningful thing you can do to support your teen's growth.

Every teen develops on their own timeline. Some hit growth spurts early, others late. Use these averages as a reference point, not a verdict. A well-supported lifestyle, built around real food, consistent movement, and enough sleep, puts your teen in a strong position to reach their natural potential — whatever that turns out to be.

References

[1] Zeevi D, Ben Yehuda A, Nathan D, Zangen D, Kruglyak L. Accurate Prediction of Children's Target Height from Their Mid-Parental Height. Children (Basel). 2024 Jul 30;11(8):916. doi: 10.3390/children11080916. PMID: 39201851; PMCID: PMC11352326. https://pmc.ncbi.nlm.nih.gov/articles/PMC11352326/

[2] Harkness LS, Bonny AE. Calcium and vitamin D status in the adolescent: key roles for bone, body weight, glucose tolerance, and estrogen biosynthesis. J Pediatr Adolesc Gynecol. 2005 Oct;18(5):305-11. doi: 10.1016/j.jpag.2005.06.002. PMID: 16202933. https://www.sciencedirect.com/science/article/abs/pii/S108331880500121X