How Old Is Prince William?

Prince William is 43 years old. The royal was born on June 21, 1982 in London, United Kingdom. That makes Prince William a Gemini.

Prince William Birthday & Early Life

Born June 21, 1982, Prince William has become one of the most recognizable royals of their generation. As a Gemini, Prince William celebrates a birthday every June.

The 43-Year Story So Far

Prince William, Prince of Wales, stands as the heir apparent to the British throne and one of the most prominent figures in modern public life. Born on June 21, 1982, in London, he is the elder son of King Charles III and the late Diana, Princess of Wales. Throughout his life he has occupied a singular position, raised in the full glare of public attention while gradually assuming the responsibilities that come with his place in the line of succession.

William has come to represent a measured, modern vision of royal service. Known for his commitment to causes ranging from mental health to environmental conservation, he has used his platform to champion issues he regards as urgent and enduring. As Prince of Wales, he carries a weight of history and expectation, balancing centuries of tradition with a clear desire to make his public role meaningful and relevant to a changing world. He is widely seen as a figure who blends respect for the institution he will one day lead with an instinct for engaging modern audiences and pressing contemporary concerns.

His journey to this point has unfolded almost entirely in public, from a closely watched childhood to military service and, ultimately, his elevation to heir apparent. Few people have grown up under such sustained scrutiny, and the way he has navigated that reality has shaped both his character and the expectations placed upon him.

William spent his childhood within the Royal Family, the eldest child of the then-Prince Charles and Princess Diana. His upbringing was shaped by both the privileges and the pressures of royal life, and his mother in particular was known for her efforts to give her sons experiences beyond palace walls. The death of Diana in 1997, when William was a teenager, was a profound and widely mourned event, and he and his younger brother walked behind her coffin in a moment that remains etched in public memory.

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Birthday Milestones

Here is when Prince William reached — or will reach — some of life's notable birthdays:

• 18th birthday — June 21, 2000
• 21th birthday — June 21, 2003
• 30th birthday — June 21, 2012
• 40th birthday — June 21, 2022
• 50th birthday — June 21, 2032 (upcoming)

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