mile·age

/ˈmaılıʤ/ noun [noncount]

1 a : distance in miles

What's the mileage from here to New York? [=how many miles is it from here to New York?]

1 b : distance traveled in miles by a vehicle

My old car has a lot of mileage on it. = My old car has racked up a lot of mileage. [=it has been driven for a large number of miles since it was new]

a car with high/low mileage

The car's rental rate includes unlimited mileage. [=the rate does not increase no matter how far the car is driven]

The company pays me a mileage allowance [=an amount of money paid for every mile traveled] when I have to travel for work.

2 : the average number of miles a vehicle will travel on a gallon of gasoline

My new car gets much better mileage than my old one did.

good/bad mileage

fuel/gas mileage

3 a : benefit or use over a period of time

The company has gotten a lot of mileage out of a simple idea.

The movie gets a lot of mileage out of an old story.

3 b : useful ability

He's not the pitcher he once was, but he still has a lot of mileage left in him. [=he is still able to pitch well; his career as a pitcher is far from finished]