Conor McGregor and Floyd Mayweather's mega-fight in Las Vegas is set to be watched by millions around the world.

From ringside seats at the T-Mobile arena, to a comfy sofa in the early hours of Sunday morning, fight fans will be planning their viewing already.

Sportsmail runs you through the all-important details you need to be able to watch the first ever billion-dollar fight.

There are plenty of different options to watch the Floyd Mayweather vs Conor McGregor fight

What channel will it be on?

For viewers in the UK, Sky Box Office are televising the contest.

In the USA it will be broadcast on Showtime, who have a long-held association with Mayweather and air the All Access shows.

What time will it start?

The action is expected to begin at 4am BST after a packed undercard to whet the appetite before the big show.

How much will it cost?

Fans in the UK will have to fork out £19.95 to order the fight but their American counterparts will be stung to the tune of £69.85.

Punters in the Republic of Ireland will be charged €24.95.

How to watch the fight in the UK?

Those who already subscribe to Sky Sports can buy the fight here or alternatively make the purchase over the phone - 03442 410 888.

The number to call in the Republic of Ireland is - 0818 220 225

People across the globe will be tuning in to witness this cross-over clash in Las Vegas

How can I stream the fight live?

There are a number of devices that you can stream the fight on.

With Sky Sports Box Office, a PC, Desktop, Mac, NOW TV box, iPhone, iPad or Android phone and tablet can all be used to watch the action.

So for those unable to find access to a television, alternatives are available and you won't have to miss out on what is set to be the most lucrative fight of all time.

Record-breaking numbers are anticipated to tune in, despite the inconvenient timings and it's very easy to sort out streaming.

To sign up, pay and watch - create an account and pay at www.skysports.com/boxofficelive.

Who is on the undercard?

Gervonta Davis vs Francisco Fonseca

Nathan Cleverly vs Badou Jack

Andrew Tabiti vs Steve Cunningham

Shawn Porter vs Thomas Dulorme

Juan Heraldez vs Jose Miguel Borrego

Kevin Newman vs Mark Anthony Hernandez

Savannah Marshall vs Amy Coleman