Square kilometre

From Wacklepedia - The Free Encyclopedia

Square kilometre (symbol km?) is an SI unit of surface area. It is one of the SI derived units.

1 km? is equal to:

• the area of a square measuring 1 kilometre on each side
• 1 000 000 m?
• 100 hectares
• 0.386 102 square miles (statute)
• 247.105 381 acres

Conversely:

• 1 m? = 0.000 001 km?
• 1 hectare = 0.01 km?
• 1 square mile = 2.589 988 km?
• 1 acre = 0.004 047 km?

The 1 E6 m? orders of magnitude page gives comparisons with geographic areas. See also Conversion of units.

External link

• Conversion Calculator for Units of AREA