Beer
4.5 gallons         = 1 pin
2 pins         = 1 firkin
2 firkins         = 1 kilderkin
2 kilderkins         = 1 barrel
2 barrels         = 1 puncheon
3 puncheons         = 1 tun
                
Beer (contd.)
6 firkins         = 1 hogshead
2 hogsheads         = 1 butt
2 butts         = 1 ton