How many miles does land rover get on empty
Less than 25 miles but it will be different every time. Take a gas can with you if your want to test it out.
And it's best to not run the gas tank that low. It can damage the fuel pump by sucking up trash in the bottom of the tank, and fuel pump motor is cooled by submersion in gasoline. Never go below 1/4 tank unless it's an emergency.