SI units are used in the United States in several different ways. For example: foot, gallon, pounds, etc. SI units are a system of physical units, also called the International System of Units, and are different to the metric system used elsewhere in other countries such as Great Britain.
In the U.S., SI units are mainly used in scientific contexts, such as in chemistry and physics. While everyday measurements are often in customary units, education and certain industries promote the use of SI for clarity and precision. This dual system highlights the importance of SI units in ensuring effective communication in science and engineering.
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