The conversion of 1.8 kg to pounds is equivalent to 3.96 pounds. Since 1 kg is equivalent to 2.2 pounds, 1.8 is multiplied by 2.2, giving 3.96 pounds.
A pound, symbolized by lb, is the unit of mass in the U.S. Customary System of Measurement. In the International System of Units or SI, the unit of mass is the kilogram or kg. The SI system, which is based on the metric system, is widely used by various countries worldwide. Even though the United States adopted the metric system some years ago, the old U.S. Customary System is still widely used in the country. The latter derived from the English system of measurement used during the British Empire's reign.