How Tall Is Prince Louis Now? The Royal Growth Spurt That's Stunned Fans (December 2025 Update)

The youngest member of the Wales family, Prince Louis, is officially having a moment. As of December 2025, royal fans and commentators are buzzing after his most recent public appearances, particularly the annual Christmas carol service, where it was impossible to ignore his rapid development. The question on everyone's mind is simple: How tall is Prince Louis now, and is he on track to be as towering as his father, Prince William? The latest photos confirm a dramatic growth spurt is underway, making him look significantly taller than he did just months ago.

While the Royal Family does not release official height statistics for their children, we can use his current age, the average growth charts for boys in the UK, and the formidable height genetics of his parents to provide a fresh and accurate estimate. Prince Louis is currently 7 years old, an age when growth can accelerate quickly, and all signs point to him following in the footsteps of his 6-foot-3 father.

Prince Louis: A Snapshot Biography

Prince Louis Arthur Charles is the third child and second son of William, Prince of Wales, and Catherine, Princess of Wales. His public profile, though carefully managed, has charmed the world with his expressive and often hilarious balcony antics, proving he is a royal full of personality.

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• Full Name: Louis Arthur Charles
• Date of Birth: April 23, 2018
• Current Age (December 2025): 7 years old
• Place of Birth: The Lindo Wing at St Mary's Hospital, Paddington, London
• Birth Weight: 8lbs 7oz
• Line of Succession: Fourth in line to the British throne, behind his father, Prince William, and his older siblings, Prince George and Princess Charlotte.
• Titles: Prince Louis of Wales (formerly Prince Louis of Cambridge)

The Latest Update: Is Prince Louis Taller Than Average?

The most recent observation regarding Prince Louis's height comes from his appearances in late 2025, where royal watchers were left "speechless" by how quickly he is growing. This visible growth spurt has pushed him past what many would consider the typical height for a 7-year-old.

The Statistical Estimate for a 7-Year-Old Boy

To accurately estimate Prince Louis's height, we look at the average growth data for boys his age. In the United Kingdom, the average height for a 7-year-old boy is approximately 122 cm, or about 4 feet tall.

• Average Height (7-Year-Old Boy): ~4 feet (122 cm)
• Prince Louis's Estimated Height: Given the commentary about his "dramatic growth" and how tall he is looking relative to his mother, Princess Kate, it is highly likely Prince Louis is currently at or slightly above the 75th percentile for his age, placing him comfortably over the 4-foot mark.

His height is a clear indication that he is benefiting from the strong genes of his parents, both of whom are significantly above the national average height.

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The Royal Genes: Predicting Prince Louis's Adult Height

The most compelling evidence for Prince Louis’s future height is his immediate family. Both the Prince and Princess of Wales are considered tall, setting a high genetic benchmark for all three of their children.

The Towering Heights of His Parents

Prince Louis’s father, Prince William, is one of the tallest members of the British Royal Family, a trait that is clearly being passed down.

• Prince William, Prince of Wales: A commanding 6 feet 3 inches (191 cm) tall.
• Catherine, Princess of Wales (Kate Middleton): Stands at 5 feet 9 inches (175 cm), making her one of the tallest women in the Royal Family.

When two tall parents have a child, the likelihood of that child being tall is exceptionally high. Using standard genetic prediction models, the "mid-parental height" calculation suggests that Prince Louis has a high probability of reaching a similar stature to his father, potentially placing him well over 6 feet as an adult.

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The Cambridge Children: A Height Comparison

Prince Louis's growth is often compared to his older siblings, Prince George and Princess Charlotte, who are also noted for their height, creating a family of visibly tall royals.

Prince George: The Next Tallest King?

The eldest sibling, Prince George (12 years old), is already showing signs of following in his father’s footsteps. Royal observers have frequently commented on his height, with some predicting he could even surpass Prince William, potentially reaching 6 feet 5 inches. This trajectory suggests that Prince Louis will have a very tall older brother to measure up against, adding pressure to his own growth.

Princess Charlotte: A Tall Royal Lady

Princess Charlotte, the middle child (10 years old), also benefits from her parents' genes. She is expected to be a tall woman, likely exceeding the average female height in the UK (5 feet 4 inches). Her current height, like her brother Louis's, is estimated to be above the average for her age cohort, putting her on a path to be as tall as or possibly taller than her mother, Princess Catherine.

The three children of the Prince and Princess of Wales—Prince George, Princess Charlotte, and Prince Louis—all possess a strong genetic predisposition for height. As the youngest, Prince Louis is now clearly entering a phase of rapid development, which is why his height is becoming such a frequent topic of conversation among royal fans.

What to Expect Next for Prince Louis’s Height

As Prince Louis moves from childhood into his pre-teen years, his growth will continue to be a subject of fascination. Between the ages of 8 and 12, boys typically experience a steady, but not yet dramatic, growth rate before the major adolescent growth spurt begins. Given his current rate of growth and strong genetic background, it is safe to assume the following:

• He will continue to appear tall for his age in public appearances throughout 2026 and 2027.
• He is highly likely to reach or exceed his father’s 6’3” height as an adult, potentially becoming one of the tallest male members of the modern British Royal Family.
• His height will be a consistent visual marker of how quickly the young royal is maturing, transitioning from the toddler known for his cheeky expressions to a young man.

While an exact height measurement remains a private family detail, the public consensus is clear: Prince Louis is growing up fast, and he is on a path to be a very tall royal.