- 3: Number of times she and William have shared PDA since they married: a post-boat-race hug in Prince Edward Island during their royal tour of Canada, a celebratory embrace watching a Team GB victory in cycling during the Olympics, and a cuddle during a recent England vs. Wales rugby match.
- 3: Rumored number of children she wants to have.
- 3: Number of acorns on her family coat of arms. The acorns represent the abundance of great oaks in her home county of Berkshire.
- 3: Number of titles she has. As well as the Duchess of Cambridge, she is also known as Countess of Strathearn when she's in Scotland and Lady Carrickfergus when she's in Northern Ireland.
- 4: Height in inches of her favorite L.K. Bennett Sledge shoes.
- 5.5: Number of months by which she is older than William.