A meter (or metre) is the base unit of length in the International System of Units (SI). It is defined as the length of the path traveled by light in vacuum during a time interval of 1/299,792,458 of a second. In everyday terms, a meter equals 100 centimeters or 1000 millimeters. It is approximately equal to 3.28 feet or 39.37 inches. Some common objects about one meter long include a guitar, a baseball bat, or an adult person's typical step length.
