Square Kilometers to Square Yards
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1 square kilometer (sq km) = 1195990.05 square yard (sq yd). Square Kilometer (sq km) is a unit of Area used in Metric system. Square Yard (sq yd) is a unit of Area used in Standard system.

Square Kilometer: A Unit of Area

Definition of the Square Kilometer

A square kilometer is a unit of area that measures the size of a surface. It is defined as the area of a square whose sides are one kilometer long. A square kilometer is equal to 1,000,000 square meters, 100 hectares, or 0.386102 square miles. It is also the base unit of area in the metric system.

How to Convert Square Kilometer to Other Units

To convert a square kilometer to other units of area, we need to multiply or divide by a conversion factor. A conversion factor is a number that relates two units of measurement. For example, to convert a square kilometer to a square mile, we need to multiply by 0.386102, which is the conversion factor between these two units. Here are some common conversion factors for square kilometer and other units of area:

• 1 square kilometer = 0.386102 square miles
• 1 square kilometer = 247.105 acres
• 1 square kilometer = 100 hectares
• 1 square kilometer = 1000000 square meters
• 1 square kilometer = 10000000000 square centimeters
• 1 square kilometer = 1000000000000 square millimeters

Where Square Kilometer is Used

The square kilometer is widely used around the world as a standard unit of area measurement. It is used for various purposes, such as measuring the size of countries, regions, cities, lakes, islands, parks, forests, and more. Different countries may have different preferences or regulations for using the square kilometer or other units of area in different applications. Here are some examples:

• In most countries, the square kilometer is used for measuring the area of countries and regions.
• In the United States, the square mile is more commonly used for measuring the area of states and counties, but the square kilometer is also used for some purposes, such as census data and environmental reports.
• In Canada, the square kilometer is used for measuring the area of provinces and territories, but the acre and the hectare are also used for measuring smaller areas of land.
• In Australia and New Zealand, the square kilometer is used for measuring the area of states and territories, but the hectare is also used for measuring smaller areas of land.
• In India, the square kilometer is used for measuring the area of states and districts, but the bigha and the acre are also used for measuring agricultural land.
• In China, the square kilometer is used for measuring the area of provinces and municipalities, but the mu and the hectare are also used for measuring agricultural land.

History of Square Kilometer

The concept of measuring area by using squares dates back to ancient times. The ancient Egyptians, Babylonians, Greeks, and Romans all used different units of area based on squares with different side lengths. For example, the ancient Egyptians used a unit called setat, which was equal to a square with sides of 100 cubits (about 52 meters). The ancient Greeks used a unit called plethron, which was equal to a square with sides of 100 feet (about 30 meters). The ancient Romans used a unit called iugerum, which was equal to a square with sides of 120 feet (about 35 meters).

The modern definition of the square kilometer was established in 1795 by the French Academy of Sciences as part of the metric system. The metric system was designed to create a universal and rational system of measurement based on natural phenomena and decimal multiples. The original definition of the meter was one ten-millionth of the distance from the equator to the North Pole along a meridian. The original definition of the square kilometer was then derived from this definition as the area of a square whose sides are one thousand meters long.

The definition of the meter has been revised several times over the years to improve its accuracy and precision. The current definition of the meter was adopted in 1983 by the General Conference on Weights and Measures as “the length of the path travelled by light in vacuum during a time interval of 1/299792458 second”. The current definition of the square kilometer is then derived from this definition as before.

Example Conversions of Square Kilometer to Other Units

Here are some examples of converting a given area in square kilometers to other units:

• A country that has an area of 10 square kilometers can be converted to:
  • 3.86102 square miles
  • 2471.05 acres
  • 1000 hectares
  • 10000000 square meters
  • 100000000000 square centimeters
  • 100000000000000 square millimeters
• A lake that has an area of 100 square kilometers can be converted to:
  • 38.6102 square miles
  • 24710.5 acres
  • 10000 hectares
  • 100000000 square meters
  • 1000000000000 square centimeters
  • 1000000000000000 square millimeters
• A park that has an area of 0.1 square kilometers can be converted to:
  • 0.0386102 square miles
  • 24.7105 acres
  • 10 hectares
  • 100000 square meters
  • 1000000000 square centimeters
  • 1000000000000 square millimeters

Square Yard: A Unit of Area

Definition of the Square Yard

A square yard is a unit of area that measures the size of a surface. It is defined as the area of a square whose sides are one yard long. A square yard is equal to 9 square feet, 1296 square inches, or 0.836127 square meters. It is also a common unit of area in the United States customary system and the imperial system.

How to Convert Square Yard to Other Units

To convert a square yard to other units of area, we need to multiply or divide by a conversion factor. A conversion factor is a number that relates two units of measurement. For example, to convert a square yard to a square meter, we need to multiply by 0.836127, which is the conversion factor between these two units. Here are some common conversion factors for square yard and other units of area:

• 1 square yard = 0.836127 square meters
• 1 square yard = 9 square feet
• 1 square yard = 1296 square inches
• 1 square yard = 0.000206612 acres
• 1 square yard = 0.000000322831 square miles
• 1 square yard = 8361.27 square centimeters
• 1 square yard = 8361270 square millimeters

Where Square Yard is Used

The square yard is widely used in the United States, the United Kingdom, and some other countries as a standard unit of area measurement. It is used for various purposes, such as measuring the size of carpets, fabrics, lawns, gardens, sports fields, and more. Different countries may have different preferences or regulations for using the square yard or other units of area in different applications. Here are some examples:

• In the United States, the square yard is used for measuring the area of carpets, fabrics, and lawns.
• In the United Kingdom, the square yard is used for measuring the area of fabrics, gardens, and sports fields.
• In India, the square yard is used for measuring the area of land parcels and plots.
• In Pakistan, the square yard is used for measuring the area of land parcels and plots.
• In Canada, the square meter is more commonly used for measuring the area of carpets, fabrics, and lawns, but the square yard is also used for some purposes.
• In Australia and New Zealand, the square meter is more commonly used for measuring the area of carpets, fabrics, and lawns, but the square yard is also used for some purposes.

History of Square Yard

The concept of measuring area by using squares dates back to ancient times. The ancient Egyptians, Babylonians, Greeks, and Romans all used different units of area based on squares with different side lengths. For example, the ancient Egyptians used a unit called setat, which was equal to a square with sides of 100 cubits (about 52 meters). The ancient Greeks used a unit called plethron, which was equal to a square with sides of 100 feet (about 30 meters). The ancient Romans used a unit called iugerum, which was equal to a square with sides of 120 feet (about 35 meters).

The modern definition of the square yard was established in the late 18th century by the British Parliament as part of the imperial system. The imperial system was designed to create a uniform and consistent system of measurement based on traditional units that were widely used in Britain and its colonies. The original definition of the yard was derived from an iron rod that was kept in London as a standard measure. The original definition of the square yard was then derived from this definition as the area of a square whose sides are one yard long.

The definition of the yard has been revised several times over the years to improve its accuracy and precision. The current definition of the yard was adopted in 1959 by an international agreement as “the length equal to 0.9144 meter exactly”. The current definition of the square yard is then derived from this definition as before.

Example Conversions of Square Yard to Other Units

Here are some examples of converting a given area in square yards to other units:

• A carpet that has an area of 20 square yards can be converted to:
  • 16.7225 square meters
  • 180 square feet
  • 25920 square inches
  • 0.00413224 acres
  • 0.00000645662 square miles
  • 167225 square centimeters
  • 16722500 square millimeters
• A garden that has an area of 1000 square yards can be converted to:
  • 836.127 square meters
  • 9000 square feet
  • 1296000 square inches
  • 0.206612 acres
  • 0.000322831 square miles
  • 8361270 square centimeters
  • 8361270000 square millimeters
• A sports field that has an area of 50000 square yards can be converted to:
  • 41806.4 square meters
  • 450000 square feet
  • 64800000 square inches
  • 10.3306 acres
  • 0.0161416 square miles
  • 418064000 square centimeters
  • 418064000000 square millimeters