Mpg on yamaha r6 on the interstate?

I own a 2009 yamaha r6. And I'm taking a trip down to florida. And I have to travel over 400 miles. I'm curious what my mpg is on the interstate if I'm driving it responsibly instead of riding it like I stole it. So curious on how far I can go in-between fill up. I know my tank holds 4.5 gallons. But I can't find what my mpg is anywhere.