Square Decimeters to Square Meters
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1 square decimeter (sq dm) = 0.01 square meter (sq m). Square Decimeter (sq dm) is a unit of Area used in Metric system. Square Meter (sq m) is a unit of Area used in Metric system.

Square Decimeter: A Unit of Area

A square decimeter is a unit of area in the metric system. It is equal to the area of a square with sides of one decimeter. The symbol for square decimeter is dm2.

Definition of the Square Decimeter

The square decimeter is defined as the area of a square that has a side length of 1 decimeter, or one tenth of a meter. This is equivalent to 0.01 square meter, or 100 square centimeters, or 0.0001 square kilometer.

The square decimeter is a derived unit in the International System of Units (SI), which means that it is derived from the base unit of length, the meter. It is also a coherent unit, which means that it does not require any conversion factor when used with other SI units.

History of the Square Decimeter

The square decimeter was introduced in France in 1795 as part of the metric system, which aimed to simplify and standardize the units of measurement. The metric system was based on the decimal system, which used powers of ten to relate different units of the same quantity.

The square decimeter was originally intended to be a unit of area equal to one hundredth of a square meter, or one ten-thousandth of a square kilometer. However, due to a mistake in the definition of the meter at that time, the actual area of a square decimeter was slightly smaller than intended. This error was corrected in 1889, when the meter was redefined based on the distance between two marks on a platinum-iridium bar kept in Paris.

The square decimeter became widely used throughout the world for measuring medium-sized areas, especially in science, engineering, and medicine. It is also used in some everyday applications, such as measuring floor space, paper size, and clothing size.

How to Convert Square Decimeter to Other Units

To convert a square decimeter to other units of area, we can use the following conversion factors:

• 1 square decimeter = 0.01 square meter
• 1 square decimeter = 100 square centimeters
• 1 square decimeter = 0.0001 square kilometer
• 1 square decimeter = 15.500031 square inches
• 1 square decimeter = 0.107639104 square feet
• 1 square decimeter = 0.011959900 square yards

To convert from other units to a square decimeter, we can use the inverse of these conversion factors.

For example, to convert 50 square centimeters to square decimeters, we can use:

50 square centimeters x (0.01 dm2 / 1 cm2) = 0.5 dm2

Where Square Decimeter is Used

The square decimeter is commonly used in many countries for measuring medium-sized areas, especially in science, engineering, and medicine. It is also used in some everyday applications, such as measuring floor space, paper size, and clothing size.

Some examples of uses of the square decimeter are:

• The average size of an adult human hand is about 4 dm2.
• The standard paper size for printing documents in most countries is A4, which has an area of about 6.237 dm2.
• The smallest unit of measurement for digital images is a pixel, which can have an area ranging from less than 0.000001 dm2 to more than 0.001 dm2 depending on the resolution and size of the screen.
• The largest coin in circulation in the European Union is the two euro coin, which has an area of about 0.314 dm2.
• The smallest country in the world by area, Vatican City, has an area of about 440000 dm2.

Example Conversions of Square Decimeter to Other Units

Here are some example conversions of a square decimeter to other units:

• 1 square decimeter = 0.01 square meter
• 1 square decimeter = 100 square centimeters
• 1 square decimeter = 0.0001 square kilometer
• 1 square decimeter = 15.500031 square inches
• 1 square decimeter = 0.107639104 square feet
• 1 square decimeter = 0.011959900 square yards
• 1 square decimeter = 10000000000 nanometers^2

Square Meter: A Unit of Area

Definition of the Square Meter

A square meter 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 meter long. A square meter is equal to 10,000 square centimeters, 1,000,000 square millimeters, or 0.0001 hectares. It is also the base unit of area in the International System of Units (SI).

How to Convert Square Meter to Other Units

To convert a square meter 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 meter to a square foot, we need to multiply by 10.7639, which is the conversion factor between these two units. Here are some common conversion factors for square meter and other units of area:

• 1 square meter = 10.7639 square feet
• 1 square meter = 1.19599 square yards
• 1 square meter = 0.000247105 acres
• 1 square meter = 0.0000386103 square miles
• 1 square meter = 10000 square centimeters
• 1 square meter = 1000000 square millimeters

Where Square Meter is Used

The square meter 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 rooms, buildings, plots of land, maps, carpets, paintings, and more. Different countries may have different preferences or regulations for using the square meter or other units of area in different applications. Here are some examples:

• In most countries, the square meter is used for measuring the floor area of residential and commercial buildings.
• In the United States, the square foot is more commonly used for measuring the floor area of buildings, but the square meter is also used for some purposes, such as energy efficiency ratings and environmental impact assessments.
• In Canada, the square meter is used for measuring the floor area of buildings, but the acre is also used for measuring the size of land parcels.
• In Australia and New Zealand, the square meter is used for measuring the floor area of buildings and the size of land parcels, but the hectare is also used for measuring large areas of land.
• In India, the square meter is used for measuring the floor area of buildings and the size of land parcels, but the bigha and the acre are also used for measuring agricultural land.
• In China, the square meter is used for measuring the floor area of buildings and the size of land parcels, but the mu and the hectare are also used for measuring agricultural land.

History of Square Meter

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 meter 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 meter was then derived from this definition as the area of a square whose sides are one meter 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 meter is then derived from this definition as before.

Example Conversions of Square Meter to Other Units

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

• A room that has an area of 15 square meters can be converted to:
  • 161.459 square feet
  • 17.9399 square yards
  • 0.00371054 acres
  • 0.000579364 square miles
  • 150000 square centimeters
  • 15000000 square millimeters
• A plot of land that has an area of 5000 square meters can be converted to:
  • 53819.5 square feet
  • 5979.95 square yards
  • 1.23553 acres
  • 0.0019307 square miles
  • 50000000 square centimeters
  • 5000000000 square millimeters
• A painting that has an area of 0.5 square meters can be converted to:
  • 5.38195 square feet
  • 0.597995 square yards
  • 0.000123553 acres
  • 0.000019307 square miles
  • 5000 square centimeters
  • 500000 square millimeters