Distance, Force and Online Currency Conversion

While a dimension expresses a specific type of physical quantity, a unit assigns a number so that the dimension can be measured. For example, measurement of volume (a dimension) can be expressed using units of liters.

Similarly, online distance conversion, currency conversion and force unit conversion is possible today. Measurement of energy (a dimension) can be expressed using units of joules. Most dimensions have multiple units that are used for measurement. For example, the dimension of “force” can be expressed using units of newtons, pounds-force, or dynes.

In practice, there are several unit systems in use and even online currency conversion is possible through the unit conversion sites out there. The International System of Units (abbreviated SI from the French “Le Systeme International d’Unites”) is based on the meter, kilogram, and second. Online force conversion is possible via sites like convertunitsnow.com


Although the SI system is intended to serve as an international standard, there are other systems in common use in the United States for conversion of units online. The U.S. Customary System (USCS), sometimes called English Engineering System, uses the pound-mass (lbm) for mass, the foot (ft) for length, the pound-force (lbf) for force, and the second (s) for time. The British Gravitational (BG) System is similar to the USCS system that the unit of mass is the slug.

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