This metric system had as its fundamental unit of length the meter, defined to be a small fraction of the length of a meridian of the earth. Other units of length were decimal multiples or fractions ...

Most of the world does its measuring in meters, grams, and liters. The United States is the only major trading nation that does not use the metric system. So we often need to make conversions between ...

The metric system is used by almost every country in the world, making it a universal language of measurement. The United States officially endorsed the metric system in 1975, but implementation has ...