To help compare sizes of different geographic regions, we list here areas between 1 km² (100 hectares) and 10 km² (1000 hectares). See also areas of other orders of magnitude.

• Areas smaller than 1 km²
• 1 km² is equal to:
  • 100 hectares
  • 10⁶ m²
  • 0.386 square miles.
  • 247 acres
  • the area of a square of side length 1 km
  • A cube with this surface area has sides of length 408 m.
  • A circle of this area has a radius of 564 m.
  • A sphere of this surface area has a radius of 282 m.
• 135 hectares -- the campus of the United States Naval Academy
• 195 hectares -- Monaco (country ranked 192nd by area)
• 200 hectares -- Herm, Channel Islands
• 290 hectares -- City of London
• 320 hectares -- Hampstead Heath in London.
• 650 hectares -- Gibraltar
• 890 hectares -- size of largest organism on Earth, Armillaria ostoyae. Reference http://news.bbc.co.uk/1/hi/sci/tech/869808.stm
• Areas larger than 10 km²

See also: Orders of magnitude

External link

Conversion Calculator for Units of AREA http://www.ex.ac.uk/trol/scol/ccarea.htm