The Royal Wedding

The numbers behind the nuptials

3 diamonds

Meghan Markle's engagement ring setting includes one diamond Prince Harry sourced from Botswana flanked by two smaller diamonds from the jewelry collection of Diana, Princess of Wales.

16 months

How long the couple dated before Prince Harry proposed.

1070

Windsor Castle dates back to around 1070.

11 monarchs

are buried inside St. George's Chapel, including Henry VIII.

1863

The year the chapel first held a royal wedding, between King Edward VII and Queen Alexandra.

25 miles (approx. 40km)

between Windsor and central London, where the couple live.

2.08 miles (3.35 km)

Length of the newlyweds’ procession route.

45 minutes

Length of Meghan Markle’s Church of England baptism service.

12 noon

The couple will marry at St. George's Chapel, Windsor Castle on May 19.

1984

Prince Harry was baptized in St. George's Chapel in December 1984.

£1,000,000 ($1,400,000)

Estimated cost of Prince Harry and Meghan's wedding, excluding security, according to seasoned wedding planners.

2005

The year that Harry's father, Prince Charles, married Camilla Parker Bowles. A prayer service was held at St. George's Chapel following the couple's civil ceremony at the Windsor Guildhall.

The chapel last hosted a royal wedding in 2008, for Peter Phillips, son of the Princess Royal, and Autumn Kelly.

600 guests

are expected to be invited to the wedding.

36 Meghan Markle's age.

The former actress is the second American to wed a British royal.

36.7m people

in Britain tuned into the 2011 wedding of the Duke and Duchess of Cambridge –- that's more than half the total UK population.

Millions more watched worldwide, including nearly 23m from the US who viewed the ceremony live despite the early hour.

2,640 people

are invited onto the castle grounds to see the wedding party arrive.

2 receptions

The couple are scheduled to receive all their guests at the first reception at St. George’s Hall.

Later, a more intimate after-party for roughly 200 guests will be hosted by Prince Charles.

800

Capacity of St. George's Chapel.

250+ Members of the British Armed Forces

will be involved on the day.

1348

The year the chapel choir -- which will perform during the wedding service -- was founded.

7 charities

the couple have asked people to support in lieu of wedding gifts.

19 years

The age of cellist Sheku Kanneh-Mason, one of the musicians who will perform at the ceremony.

In 2016, he was the first black musician to win the BBC Young Musician of the Year Award.

8,000 members of the media

covered the Duke and Duchess of Cambridge's nuptials in 2011.

6 bridesmaids

and four page boys will make up the bridal party at the wedding.

Along with Princess Charlotte, the bridesmaids include two of Prince Harry's goddaughters, one of whom is just 2 years old.

Pictures from Getty Images, Historia/REX/Shutterstock, Bettmann Archive, PA Images via Getty Images