Short answer: Most girls stop growing taller between ages 14 and 16, typically 2–3 years after their first period (menarche). Girls enter puberty earlier than boys on average, so their growth spurt — and the hormone shift that eventually closes their growth plates — arrives on an earlier schedule too. The chart and calculator below show the general pattern; the sections after it explain why menarche timing matters so much, and what's actually happening inside the bones.
Key Takeaways
- Girls typically reach 95–98% of their adult height by the time of their first period, with most remaining growth finished within 2–3 years after menarche.
- The trigger is the same underlying mechanism as in boys — rising estrogen gradually hardens the growth plate cartilage until the bone can no longer lengthen — but girls' hormone surge starts about two years earlier on average.
- How much growth is left after the first period varies more than most people assume: research shows girls who start menstruating early tend to grow noticeably more afterward than girls who start later.
- Genetics plays a major role in adult height, but the timing of puberty, nutrition, sleep, and overall health all shape when growth actually finishes.
- A bone age X-ray is a far more reliable way to estimate remaining growth than chronological age or current height alone.
Girls' Growth Timeline: When Does Height Stop?
The chart below tracks the average growth pattern for girls from birth to age 21. Tap each life stage to see what's happening — and use the quick check at the bottom to estimate where a girl is in her growth journey.
Is She Still Growing? Quick Estimate
Enter age and current height. The estimate updates automatically and compares height with an age-based average for girls.
The Real Trigger: It's Hormones, Not a Birthday
Like boys, girls stop growing when the growth plates (epiphyseal plates) at the ends of the long bones fuse and harden into solid bone — a process called ossification. The hormone driving that process is estrogen, which rises sharply once puberty begins. Once a critical, sustained level of circulating estrogen is reached, the growth-plate cartilage stops multiplying and permanently closes, and that bone can never lengthen again.
The key difference from boys is timing. Girls generally enter puberty about one to two years earlier, so their estrogen surge — and the growth-plate closure it eventually triggers — arrives earlier too. That's the main biological reason girls typically finish growing by their mid-teens while boys often continue into their late teens.
Menarche (the first period) is a useful marker because it tends to occur relatively late in the pubertal sequence, generally after the fastest part of the growth spurt has already happened. Clinical references commonly note that girls have already reached roughly 95–98% of their adult height by the time they get their first period.
What Determines *When* It Happens
Genetics
Family studies consistently show that a large share of adult height variation between individuals comes down to inherited genes — and genetics also influences how early or late puberty starts. See our guide on the role of genetics in determining height.
Puberty & Menarche Timing
Girls who get their first period earlier (before ~12) tend to have more growth still ahead of them post-menarche than those whose first period comes later (after ~14), according to recent pediatric research. Earlier puberty overall usually means an earlier finish line.
Nutrition & Sleep
Growth hormone is released mainly during deep sleep, and bone lengthening needs adequate protein, calcium, vitamin D, and overall calories. Chronic undernutrition, poor sleep, or high stress can blunt growth during the pubertal window. See how sleep affects height growth.
Health Conditions
Chronic illness, thyroid or growth-hormone disorders, and being significantly under- or overweight can shift puberty earlier or later, in turn changing how much growth time remains. Precocious (early) puberty in girls — onset before age 8 — is a recognized reason to see a pediatric endocrinologist.
Does Getting a Period Mean Growth Is Basically Over?
What menarche really tells you about remaining height
- Not quite over, but close. Growth typically continues for another 2–3 years after the first period, just at a much slower pace than during the main pubertal spurt.
- A widely cited clinical estimate is that girls gain roughly 2–3 inches (5–8 cm) in total after menarche — but a 2024 study following nearly 800 girls found this varies far more than commonly taught, ranging from almost no additional growth to well over 10 cm in some cases.
- Timing matters most: girls whose first period arrived before age 12 tended to grow substantially more afterward (a median of roughly 13 cm in that study) than girls who started after age 14 (a median of roughly 3 cm).
- Most of whatever post-menarche growth occurs happens in the first year after the first period, tapering off significantly by the second and third year.
- This is why menarche is a useful signpost for "growth is winding down," but not a hard stop — a doctor tracking growth velocity over time gives a much clearer picture than the first period alone.
Signs Growth May Be Slowing or Wrapping Up
- It's been 2–3 years since her first period and height hasn't changed much in that time — a strong sign growth is nearly or fully complete.
- Shoe size has been stable for a year or more. Feet often stop growing before overall height does, making this a useful early clue.
- Height hasn't changed on the growth chart across 2+ checkups spaced 6–12 months apart — a single flat measurement isn't meaningful, but a sustained plateau is.
- Breast and pubic hair development have reached the final Tanner stage, indicating puberty is in its later phase.
- She's 16 or older. By this point, most girls are at or very near their final adult height, since growth plates have largely fused.
How Doctors Actually Estimate Remaining Growth
Frequently Asked Questions
Most girls reach close to their final adult height between ages 14 and 16, roughly 2–3 years after their first period. Some, especially later developers, continue with small amounts of growth a bit longer.
A commonly cited average is about 2–3 inches (5–8 cm), but research shows wide individual variation. Girls who start menstruating earlier (before 12) tend to grow considerably more afterward than those who start later (after 14).
It's possible but limited. If growth plates haven't fully fused — more common in girls who went through puberty later than average — a small amount of additional height gain can occur into the later teens. For most, though, height is essentially set by 15–16.
Not necessarily shorter overall, but it usually means less growth remains after menarche, since an earlier hormone surge closes the growth window sooner. Genetics and overall growth trajectory before puberty matter just as much as menarche timing alone.
Rising estrogen levels during puberty gradually cause the cartilage in the growth plate to harden into solid bone. Once that process (ossification) completes, the bone can no longer lengthen — the same underlying mechanism seen in boys, just on an earlier timeline.
No — it's typically only recommended when a doctor is investigating unusually short stature, very early puberty (before age 8), very delayed puberty, or a significant drop-off on the growth chart. For most healthy, steadily growing girls, routine height and weight checks are enough.
Continue Reading
Can You Grow Taller After 19?
What the research says about growth beyond the teen years.
The Role of Genetics in Determining Height
How much of adult height really comes down to DNA.
How Sleep Affects Height Growth
Why deep sleep matters for growth hormone release.
Human Growth Hormone (HGH) and Height
How HGH works and when it actually matters.
Height Growth Potential Quiz
A quick, interactive way to explore growth potential.
Child Height Prediction Calculator
Estimate a child's likely adult height range.
References
- Gårdstedt-Berghog J, Niklasson A, Sjöberg A, et al. Timing of menarche and pubertal growth patterns using the QEPS growth model. Front Pediatr. 2024;12:1438042. doi.org/10.3389/fped.2024.1438042
- Johns Hopkins Medicine. What is a Growth Spurt During Puberty? hopkinsmedicine.org
- Precocious Puberty. StatPearls [Internet]. National Library of Medicine, NCBI Bookshelf. NBK544313
- Rochira V, Kara E, Carani C. The Endocrine Role of Estrogens on Human Male Skeleton. Int J Endocrinol. 2015;2015:165215. PMID: 25873947 (cited for the shared estrogen-driven growth-plate mechanism across sexes).
- Centers for Disease Control and Prevention, National Center for Health Statistics. Clinical Growth Charts. cdc.gov/growthcharts
This article is for general educational purposes and is not a substitute for professional medical advice. If you have concerns about a child's growth or pubertal development, consult a pediatrician or pediatric endocrinologist.
