Question

WHY WE MEASURE BAG SPACE IN LITRE?

Answer 1

Answer:

When they manufacture it, to check it's capacity / max volume they need to use air. This air is always measured in volume never mass. So some volume in square centimeters should be the measure for it then for consumer's understanding it is converted into litre.. . So that is how the capacity of a backpack is decided.

Step-by-step explanation:

Answer 2

$\huge\boxed{\fcolorbox{cyan}{Grey}{HeLLo MaTe..!!}}$

When they manufacture it, to check it's capacity / max volume they need to use air. This air is always measured in volume never mass. So some volume in square centimeters should be the measure for it then for consumer's understanding it is converted into litre.. . So that is how the capacity of a backpack is decided.