Convert firkin (U.K. beer) to cubic Megameter
Selected category: volume.
Definition and details for firkin (U.K. beer):
Firkin is a traditional unit of liquid volume equal to 1/4 barrel. U.K. beer firkin (after 1824) is equal to 9 imperial gallons or about 40.91 liters.
Definition and details for cubic Megameter:
Cubic Megameter (Mm3) is a unit of volume equal to 1018m3. For example the volume of water in all Earth oceans is about 1.4 Mm3.