Square Centimeter to Square Kilometer Conversion Result

Square Centimeter: (cm2) is a unit of area in the metric system, commonly used to measure small surfaces such as books, paper, electronic screens, and everyday objects.

1 square centimeter (cm2) = the area of a square with sides measuring 1 centimeter (cm) each.

Interesting Facts:
  • A 6-inch phone screen has an area of about 90–100 cm2
  • A postage stamp is around 2–4 cm2
  • The surface area of a slice of bread is about 80–120 cm2
  • A standard light switch plate is about 80 cm2
  • The surface area of a human palm is about 100–200 cm2


Square Kilometer: (km2) is a metric unit of area measurement commonly used to measure large land areas, such as cities, countries, forests, and lakes. It is part of the International System of Units (SI) and is widely used worldwide.

1 square kilometer (km2) = the area of a square with sides measuring 1 kilometer (1 km × 1 km).

Interesting Facts:
  • New York City covers about 1,200 km2
  • Paris has an area of about 105 km2
  • Yellowstone National Park (USA) covers 8,983 km2
  • Lake Superior on the border between Canada and the United States, the world's second largest lake, is 82,000 km2
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