
When Do Girls Stop Growing? Age, Signs & Height Guide
If you’re a parent watching your daughter tower over her friends one year and barely change the next, you’re probably wondering when the growing stops. The answer isn’t a single birthday—it’s a process tied to puberty, genetics, and a few surprising milestones. Here’s what the evidence says about when girls reach their final height, what to watch for, and how to separate normal variation from cause for concern.
Typical age to stop growing: 14–15 years old ·
Growth after first period: 1–2 inches ·
Peak growth spurt age range: 10–14 years old ·
Average height for US women: 5’4″
Quick snapshot
- Most girls grow until 14–15 (Healthline (medical reference))
- Peak growth at age 12 (Medical News Today (health journalism))
- Growth spurt lasts 2–3 years (Johns Hopkins Medicine (pediatric research))
- Period marks the beginning of the end of growth (Medical News Today (health journalism)) (NIH / PubMed Central (clinical review))
- Only 1–2 inches left after first period (Johns Hopkins Medicine (pediatric research)) (NIH / PubMed Central (clinical review))
- Early period may mean shorter adult height (NIH / PubMed Central (clinical review))
- No height change for 6–12 months
- Shoe size stable for a year
- Completed puberty stages (Medical News Today (health journalism))
- Mid-parental height formula
- Genetics 60–80% (NIH / PubMed Central (clinical review))
- Nutrition and health matter
Five key facts that set the foundation for understanding the growth process in girls.
| Fact | Value |
|---|---|
| Average age for growth to stop | 14 to 15 years (Healthline (medical reference)) |
| Growth remaining after first period | 1 to 2 inches (Johns Hopkins Medicine (pediatric research)) |
| Peak growth spurt age | 12 years (approximately) (Medical News Today (health journalism)) |
| Total height gain during puberty | 8 to 10 inches |
| Percentage of height determined by genetics | 60–80% (NIH / PubMed Central (clinical review)) |
When do girls typically stop growing in height?
The short answer: most girls reach their final adult height between ages 14 and 15. But the range is wider than many parents expect. While some girls stop growing at 13, others continue until 16 or even 17, especially if puberty started late.
The determining factor isn’t a fixed age—it’s the timing of puberty. According to Johns Hopkins Medicine (pediatric research), girls stop growing about 2 to 2.5 years after their first menstrual period. This means a girl who gets her period at age 10 will likely stop growing earlier than one who gets it at 13.
What is the average age for girls to stop growing?
- Clinical summaries from Healthline (medical reference) state most girls reach adult height around age 15 or 16.
- Vinmec (clinical site) reports most girls stop by 14 or 15.
- The consensus: variability of 1–2 years is normal.
Does growth stop at the same time for all girls?
No. Growth patterns differ significantly based on when puberty starts. Medical News Today (health journalism) notes that female puberty commonly begins between ages 8 and 13. A girl who starts early may reach her final height by 13 or 14, while a late bloomer might grow into her late teens.
The “normal window” for growth cessation spans about 4 years (ages 12 to 16). A girl who hasn’t started her period by 15 or completed breast development by 13 should be evaluated by a pediatric endocrinologist.
The implication: age alone is a poor predictor. The key variable is where a girl stands in her pubertal timeline—measured by menstruation onset and Tanner stage, not the calendar.
Do girls stop growing when they get their period?
Almost, but not immediately. The first menstrual period—called menarche—marks the beginning of the end of major height growth, but it doesn’t stop growth overnight.
According to Johns Hopkins Medicine (pediatric research), peak growth happens 6–12 months before menarche. After the first period, growth slows significantly but continues for about 2 more years, adding an average of 1–2 inches. The exact figure from NIH / PubMed Central (clinical review) is about 7 cm (3 inches) on average.
How much growth remains after first period?
- Johns Hopkins Medicine (pediatric research): 2–3 inches average.
- Medical News Today (health journalism): about 7 cm (2.75 inches).
- NIH / PubMed Central (clinical review): 7 cm (3 inches) average, but varies widely.
Facts about growth after menstruation
One striking finding from NIH / PubMed Central (clinical review): girls who menstruate at age 10 grow an average of 10 cm (4 inches) after menarche, while those with menarche at 15 grow only 5 cm (2 inches). Early menstruation paradoxically means more post-period growth, but the total height gained is still less because the growth window is compressed.
Earlier periods mean less total adult height—but also more growth after the period itself. The earlier a girl starts, the more runway she has for post-menarche growth, though she starts from a shorter baseline because the growth spurt came sooner.
The pattern: post-menarche growth is an extension, not a restart. The major growth work is done before the period arrives. Parents expecting a late growth spurt after their daughter’s first period are likely to be disappointed.
What are 5 signs that you have stopped growing in height for girls?
While doctors can confirm growth plate closure via X-ray, there are observable signs that indicate height growth is complete or nearly complete.
What physical signs indicate growth plates have closed?
- Menstruation started 1–2 years ago: Most girls stop growing within this window after menarche. If your daughter has had her period for over 2 years and hasn’t grown recently, she’s likely done.
- No height change for 6–12 months: Healthline (medical reference) notes that stable height over this period is a strong indicator.
- Shoe size hasn’t changed in a year: Foot growth typically stops before height growth, making it a useful early signal.
- No more growth spurts: If the last spurt (2–4 inches in a year) was more than 18 months ago and no new one has appeared.
- Completed pubertal development: Tanner stage 5 (full breast development, adult pubic hair pattern) indicates puberty is finished.
The catch: these signs are useful for retrospective confirmation, not prediction. A girl who shows all 5 signs is almost certainly done growing, but absence of signs doesn’t guarantee more growth to come.
What is a growth spurt during puberty?
A growth spurt is a period of rapid height increase driven by hormonal changes during puberty. In girls, estrogen is the primary driver, causing growth plates (epiphyseal plates) in the long bones to produce new bone tissue rapidly.
When does the growth spurt start for girls?
Medical News Today (health journalism) reports the fastest growth spurt for females usually occurs around age 11 or 12. The wider window is ages 10–14, with peak height velocity—the fastest growth rate—hitting at about 12 years old.
How much do girls grow during the spurt?
- Johns Hopkins Medicine (pediatric research): growth rate can increase to about 8 cm (3.1 inches) per year during peak.
- Total height gain during puberty: 8–10 inches over the entire 2–3 year spurt.
- For comparison, pre-puberty growth averages about 6 cm (2.4 inches) per year.
The peak height velocity window is narrow—about 6 months on each side of menarche. If a girl misses adequate nutrition or sleep during this critical window, she may not reach her genetic height potential. NIH / PubMed Central (clinical review) emphasizes that nutritional factors account for up to 20–40% of height variability.
The trade-off: the growth spurt is a high-velocity, time-limited event. Girls who experience early puberty have a shorter total growth period and may end up shorter than their genetic potential. Girls with late puberty have a longer growth window but may experience social and emotional challenges from delayed development.
How tall will I be if my parents are 5’4″ and 5’7″?
While no formula is perfectly accurate, pediatricians use the mid-parental height calculation to estimate a girl’s adult height. For parents of 5’4″ (64 inches) and 5’7″ (67 inches), the formula is:
(64 + 67 – 5) / 2 = 63 inches = 5’3″
This is a target height, not a guarantee. The NIH / PubMed Central (clinical review) states that genetic inheritance accounts for 60–80% of final height, leaving 20–40% influenced by nutrition, sleep, and overall health.
Can you predict a girl’s adult height?
Yes, but with wide margins. The mid-parental height formula has a 95% confidence interval of about ±3–4 inches. That means a girl predicted to be 5’3″ could realistically end up anywhere from 4’11” to 5’7″. Pediatric endocrinologists use bone age X-rays of the left hand and wrist for more precise predictions.
What factors influence final height besides parents?
- Nutrition: Protein, calcium, vitamin D, and zinc are critical for bone growth. Malnutrition during growth spurts has lasting effects.
- Sleep: Growth hormone is primarily released during deep sleep. Insufficient sleep can reduce growth hormone secretion.
- Health conditions: Chronic illnesses (celiac disease, kidney disease, asthma) can stunt growth if untreated.
- Hormonal balance: Thyroid hormone and growth hormone deficiencies require medical attention.
The implication: height prediction is a conversation starter, not a verdict. For parents, focusing on modifiable factors—sleep, nutrition, overall health—is more productive than worrying about a formula.
Confirmed facts and what remains unclear
Here is a summary of what is known and what remains uncertain about girls’ growth.
| Confirmed facts | What’s unclear |
|---|---|
| Girls stop growing about 2 years after puberty begins (Johns Hopkins Medicine (pediatric research)) | Exact height prediction beyond mid-parental formula |
| Growth spurt occurs between 10–14 (Healthline (medical reference)) | Whether late growth beyond 16 is possible for all |
| Most reach final height by 14–15 (Medical News Today (health journalism)) | Impact of environmental factors on growth stop age |
| Girls grow an average of 1–2 inches after first period (Johns Hopkins Medicine (pediatric research)) | Individual variability remains large |
The pattern: the medical evidence is strong on timing but weak on prediction, highlighting the need for individualized assessment.
Key perspectives from medical sources
“During puberty, the growth rate increases again to about 8 centimeters per year—a stark contrast to the 6 centimeters per year during childhood.”
— Johns Hopkins Medicine (pediatric research)
“Girls who menstruate at 10 years grow an average of 10 cm after menarche, while those who start at 15 grow only 5 cm.”
— NIH / PubMed Central (clinical review)
“After menstruation starts, girls typically grow another 7 centimeters in height, though this varies by individual timing.”
— Medical News Today (health journalism)
These three sources converge on the same core message: menarche is the milestone, not age. The growth window after the first period is real but limited.
Timeline of growth for girls
- Age 10–14: Major growth spurt occurs (Johns Hopkins Medicine (pediatric research))
- Around age 12: Peak height velocity (fastest growth) (Medical News Today (health journalism))
- Age 12–13 (average): First menstrual period (menarche)
- 1–2 years after period: Growth slows, usually stops (Johns Hopkins Medicine (pediatric research))
- Age 14–15: Adult height reached for most girls (Healthline (medical reference))
- Age 16+: Rare growth, but possible for late bloomers
This timeline provides a general framework, but individual variation is significant.
While girls typically stop growing by age 14–15, the timeline differs for boys — learn when boys stop growing for a complete comparison.
Frequently asked questions
Can a girl grow after 16?
Rarely, but possible for late bloomers whose puberty started after age 13. Most girls have completed their growth by 16. Healthline (medical reference) notes that growth after 16 is uncommon and usually limited to 1–2 inches at most.
What is the average height for a 14-year-old girl?
According to CDC growth charts, the average height for a 14-year-old girl in the US is about 5’3″ to 5’4″. Keep in mind that many 14-year-olds have already reached or are very close to their final height, so this figure overlaps significantly with the adult average of 5’4″.
Does nutrition affect how tall a girl will be?
Yes. The NIH / PubMed Central (clinical review) states that nutrition accounts for 20–40% of height variability. Adequate protein, calcium, and vitamin D during the growth spurt are essential for reaching genetic height potential.
When should I be concerned about my daughter’s growth?
Medical News Today (health journalism) recommends medical evaluation if: breast development hasn’t started by age 13, periods haven’t started by age 15, or height growth has stopped before age 12. Also consult if a girl falls below the 5th percentile on the growth chart.
Do girls grow after their growth plates close?
No. Once growth plates (epiphyseal plates) at the ends of long bones fuse—a process confirmed by X-ray—no further height gain is possible. Fusion typically occurs 2–3 years after menarche.
What lifestyle factors help maximize height during puberty?
Adequate sleep (8–10 hours per night for teenagers), a balanced diet rich in protein and calcium, regular physical activity, and avoiding smoking or alcohol all support healthy growth during the pubertal window.
Is it possible to predict height without knowing parents’ heights?
Rough predictions can be made using bone age X-rays at a pediatric endocrinologist’s office, which assess how much growth potential remains by comparing bone maturity to chronological age. Without parental heights, the margin of error is larger.
For parents watching their daughter navigate this shift, the choice is straightforward: track her growth annually on a growth chart, note the date of her first period, and prioritize sleep and nutrition during the middle school years. The alternative—waiting for a growth spurt that never comes—means losing the narrow window to intervene if something is off.