Mayweather takes on the reigning UFC lightweight champion in his first outing since coming out retirement earlier this year on August 26.
The undefeated American's 50th professional outing takes place at the T-Mobile Arena in Las Vegas, Nevada.
Mayweather vs. McGregor, a fight which has divided opinion in the combat sports world, is currently the most talked about sporting event on the planet.
The immense fan interest in the bout could see it shatter the PPV buy record set by Mayweather'a 2015 'Fight of the Century' with Manny Pacquiao, which was purchased by 4.4m fight fans.
Mayweather's 48th professional bout raked in £305m ($400m) from PPV sales.
Fans in the US will have to shell out a staggering $89.95 £68) if they want to watch the UFC's poster boy try become the first man to defeat Mayweather.
And according to boxing promoter Eddie Hearn, Mayweather wants to charge U.K. punters a staggering £100 to watch 'The Billion Dollar Fight'.
"Mayweather wants the price to be £100," Hearn told GQ.
Sky are currently the favorites to land the broadcasting rights for Mayweather vs. McGregor.
Hearn doesn't foresee them charging more than their standard price for a pay-per-view.
The base price of a ticket is $3500 and if you want to sit within spitting distance of the ring it can rise to $10,000 or so. Even re-sold tickets average $7000. There are plenty of people who can swing those costs but the question remains—will they shell out for what amounts to a novelty fight?
"The price will be within the same realms as it always has. I don’t set the price, but my gut feeling is £19.95," he added.
"If it went to £24.95… I can’t see it, it wouldn’t be my decision. Sky won’t want to go beyond £19.95. That is their price point."