Prince William is 44 years old in 2026. Prince William, formally known as William Arthur Philip Louis, is the Prince of Wales and heir apparent to the British throne. At 44, he occupies the most senior working role in the Royal Family following his father King Charles III's accession and his own investiture. William is known for his work on mental health awareness, climate action through the Earthshot Prize, and his years working as a search-and-rescue helicopter pilot for the RAF and later as an air ambulance pilot in East Anglia.
Prince William at a Glance: Quick Facts
| Detail | Info |
| Full Name | Prince William |
| Date of Birth | June 21, 1982 |
| Age in 2026 | 44 |
| Birthplace | St Mary's Hospital, London, UK |
| Known For | Prince of Wales · Air Ambulance Pilot · Earthshot Prize |
| Net Worth | ~$1B (estate assets) |
| Zodiac Sign | Cancer |
| Generation | Millennial |
Prince William's Age at Every Major Milestone
| Age | Year | Milestone |
| 9 | 1991 | Made his first official royal engagement, accompanying his parents |
| 15 | 1997 | Lost his mother Princess Diana in a Paris car crash |
| 20 | 2002 | Enrolled at the University of St Andrews; met Kate Middleton |
| 26 | 2008 | Completed RAF training; became a qualified search-and-rescue pilot |
| 29 | 2011 | Married Catherine Middleton at Westminster Abbey; watched by 2 billion people |
| 44 | 2026 | Prince of Wales; leading the Earthshot Prize global expansion |
How Old Is Prince William's Family in 2026?
Here is how Prince William's age compares to key members of their family as of July 2026:
| Relation | Name | Age in 2026 | Age Gap |
| Wife | Princess Catherine (Kate) | 44 | Prince William is 0 yrs older |
| Son | Prince George | 12 | Prince William is 32 yrs younger |
| Daughter | Princess Charlotte | 11 | Prince William is 33 yrs younger |
| Son | Prince Louis | 8 | Prince William is 36 yrs younger |
Frequently Asked Questions
Q: How old is Prince William in 2026?
A: Prince William is 44 years old in 2026. He was born on June 21, 1982, at St Mary's Hospital in London, and turned 44 on June 21, 2026.
Q: Will Prince William become King?
A: Yes. Prince William is heir apparent to the British throne after his father King Charles III. He will become King William V upon King Charles's death.
Q: Is Prince William married?
A: Yes. Prince William has been married to Catherine, Princess of Wales (née Kate Middleton) since April 29, 2011. They have three children: Prince George, Princess Charlotte, and Prince Louis.
Q: What is Prince William's official title?
A: Prince William's official title is His Royal Highness The Prince of Wales. He also holds the titles Duke of Cornwall, Duke of Rothesay, and Earl of Chester.