![]() Over time, trade spread from the Mediterranean area to Europe, including the northern German City States. Ten dirhems comprised a Wukryeh, which was translated into Latin as an "uncia" – the origin of the word "ounce." They used a coin called a silver dirhem as a basic measure of weight, which had a weight roughly equivalent to 45 fully grown grains of barley. The Arabs used coins as a measurement of units of weight since a minted coin could not easily be cut or shaved to reduce its weight, and thus provided a measurable standard. In the eighth and ninth centuries of the Common Era (CE), Arab civilization flourished in the Middle East and Spain. As such, many unit converters including this Conversion Calculator exist, and will continue to do so to ensure that people globally are able to communicate different measurements effectively. Since US customary units (USC) are so entrenched in the United States, and SI is already used in most applications where standardization is important, everyday use of USC is still prevalent in the United States, and is unlikely to change. This is partly due to the substantial financial and cultural costs involved in changing a measurement system compared to the potential benefit of using a standardized system. ![]() Although SI is used almost universally in science (including in the US), some countries such as the United States still use their own system of units. The International System of Units (SI) is the standard metric system that is currently used, and consists of seven SI base units of length, mass, time, temperature, electric current, luminous intensity, and amount of substance. Today, some of the systems of units in use include the metric system, the imperial system, and the United States customary units. As such, the development of more universal and consistent systems developed over time. While this may work on a local level, when considering trade, as well as science, having systems of units based on units that others may not be able to relate to or understand makes interaction difficult. In the past, many systems of measurement were defined on a local level, and could be based on factors as arbitrary as the length of a king's thumb. A unit of measurement is a defined magnitude of a quantity that it used as a standard for measurement for the same kind of quantity, such as measurements of length, weight, and volume. So, the conversion factor to multiply by to convert from m 2 to ft 2 is about 10.7639104.Historically, many different systems of units have been used, where a system of units is defined as a collection of units of measurement with rules that relate them to each other. Dividing both sides of the equation by 0.09290304 we get about 10.7639104 ft 2 = 1 m 2. Knowing that 1 ft 2 = 0.09290304 m 2 we can now find the conversion factor for converting back. The value in the table, 0.09290304, is more accurate. Note that there are rounding errors in this value. Since you can multiply anything by 1 and still retain the original value, but in different units, set it up so that ft will cancel out leaving you with m.ġ ft 2 = 1 ft 2 * (1 m / 3.28084 ft) * (1 m / 3.28084 ft) = 0.0929030 m 2Īnd we now have our factor for conversion from ft 2 to m 2 since 1 * 0.0929030 = 0.0929030. Say you want to convert from ft 2 to m 2. To understand how to also convert the units follow this example. So, to convert directly from ft 2 to mm 2 you multiply by 92903.04. Or, you can find the single factor you need by dividing the A factor by the B factor.įor example, to convert from ft 2 to mm 2 you would multiply by 0.09290304 then divide by 0.000001. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into m 2 then divide by the factor for B to convert out of m 2. To convert from m 2 back into units in the left columnĭivide by the value in the right column or, multiply by the reciprocal, 1/x.Ĥ.645152 m 2 / 0.09290304 = 50 ft 2 Multiply by the value in the right column in the table below.ĥ0 ft 2 * 0.09290304 = 4.645152 m 2 To simply convert from any unit into m 2, for example, from 50 ft 2, just Where S is our starting value, C is our conversion factor, and How to Convert Units of AreaĬonversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem: Convert units of area by entering the value to convert and the from and to units.
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