Length Entry

Metric Measures
light year (9,460,528,400,000km):
kilometers (km) (1,000m):
metres (m) (1,000 mm):
millimeters (mm):
Imperial Measures (Avoirdupois)
mile (8 furlongs):
furlongs (10 chains):
chains (22 yards):
yards (3 feet):
feet (12 inches):
inches: