Kilogram, also known as kilogram, is the basic unit of mass in the international system of units. Among the seven basic units of the International System of Units, the kilogram is the only one with a prefix.

At present, the kilogram is the only basic unit in the international system of units that still uses physical objects to define, that is, it is defined as the mass of the international kilogram original device. The International Conference on Weights and Measures (CGPM) in 201/KLOC-0 agreed in principle to redefine kilograms with Planck's constant, and it is planned to make a final decision at the meeting in 20 14.

Therefore, 1 kg = 1 kg = 1kg.

Kilogram (kg), gram (g) and milligram (mg) are international common mass units. One kilogram is equal to 1000 g, and one gram is equal to 1000 mg. In daily life, 1 kg = 1 kg.

According to the regulations, 1 kg is 500g, and since 1 kg = 1 kg = 1 000g, 1 kg equals 2kg, that is,1kg equals 2kg. In addition, one kilogram is equal to 20 Liang, and people often say that one kilogram is actually 10 Liang.