usage factor
consumption factor

There's a usage factor, and it's especially critical for the long translations between worlds.

Guided free enterprise will rationalize the production, distribution and consumption factors of the economy.

"Whatever one may feel about the smoking and health controversy, the presence or absence of American cigarettes is not a cigarette consumption factor."

"There are sociologists who argue that social class is in decline in regard to lifestyle, consumption factors and politics as coherent, meaningful groups."

What's Your Consumption Factor?

The fuel consumption factors for cars and taxis are based on the standard fuel consumption figures when the vehicle is travelling at 75 mph, as published in commercial sources.

Unless you reach a separate agreement with HM Customs and Excise, the amount you may claim is worked out from the number of miles covered using the following standard fuel consumption factors: