Oh sure, I can help.

1000 acre feet is approximately 40 hectare meters. Or, you know, about 1.2 billion liters.

Over on this side of the ocean, we’ve got freshwater lakes larger than entire European countries. There’s a lake over here, it has an island on it. That island has a lake, which has an island in it. And there’s a lake on that island.

We need units of measurement that represent large things. If you don’t, that’s ok.

1.2 billion litres = 1200 megalitres = 1.2 gigalitres

Works well in places that need to represent things large and small. Europe, Canada, Australia, and pretty much everywhere else.

But enjoy your cubic furlongs and tablespoons.