Which system of measurement has been declared as the preferred one by the United States Congress?

The SI metric system, also known as the International System of Units, is recognized by the United States Congress as the preferred system of measurement. This designation encourages standardization in scientific, engineering, and educational contexts, promoting consistency and ease of communication across various fields. The metric system is based on units that are easily scalable and convertible, such as meters for length, grams for mass, and liters for volume. As a result, it simplifies calculations and comparisons, facilitating international trade and collaboration. The preference for the metric system aligns with global practices, as most countries around the world have adopted it as their standard system of measurement, making it an essential tool for modern applications in science and technology.

In contrast, while the Imperial and Customary systems are still in use, their applications can lead to confusion due to variations in measure across regions. The designation of the SI metric system as the preferred measurement system reinforces ongoing efforts toward standardization for clarity and efficiency in measurement across diverse sectors.