Old Linear Measure

1 inch	3 barleycorns
1 hand	4 inches
1 link	7.92 inches
1 span	9 inches
1 fathom	6 feet
1 cable length	100 fathoms
1 chain	22 yards
1 chain	100 links
1 furlong	10 chains
1 league	3 miles
1 nautical mile	6080 feet