How many liter in three cubic feet?

Answer 1

There are 61.02 cubic inches to a litre.

There are 12 x 12 x 12 = 1728 cubic inches to a cubic foot, or 5184 cu in to 3 cu feet

Therefore, there are 5184 / 61.02 = 84.96 litres to 3 cu feet

Or to look at it another way:

One inch is defined to be 2.54 cm, which means that one foot is 3.048 decimetres exactly, so a cubic foot is 28.316846592 litres exactly. And that means that 3 cubic feet is 84.950539776 litres exactly. 84.95 litres is close enough for most purposes.