Queen set to become longest reigning British monarch

The Queen is already the longest living British monarch in history at the age of 88. Credit: Andrew Milligan/PA Wire

The Queen is set to become the longest ever reigning monarch in British history next year.

On September 9 2015, she will pass the record set by her great-great-grandmother Queen Victoria.

Queen Victoria came to the throne aged 18 and died in 1901 when she was 81.

Buckingham Palace have calculated she reigned for 23,226 days, 16 hours and 23 minutes over 63 years.

But Elizabeth II, who became Queen aged 25 in 1952, is set to enter the history books when she overtakes Victoria next September.

However, it is likely to be business as usual for the Queen when she reaches the landmark date at the age of 89.

A Buckingham Palace spokesman said: "The Queen traditionally spends the month of September at Balmoral. Next year is unlikely to be any different."

Queen Elizabeth II wearing the Imperial State Crown after her Coronation. Credit: PA Archive

The Queen is already in the record books after becoming the longest living monarch.

According to Guinness World Records, she also holds the world record for most currencies featuring the same individual.