Harry Potter fans have listened to Audible audiobooks for over one billion hours 

In one billion hours you could hypothetically go through Hogwarts School of Witchcraft and Wizardry more than 14,000 times

Pottermore Publishing said the milestone had been hit as it celebrates 10 years of digitally publishing the series. Picture: Jonathan Brady/PA Wire

Harry Potter fans have listened to the audiobooks of the fantasy series for more than one billion hours on Audible, it has been announced.

The audio versions of the books, written by JK Rowling, were first made available on the platform seven years ago, with Stephen Fry narrating the UK editions and Jim Dale the US editions.