1, 1 km = 1 km, 1 km = 1 000m, 1 m =1decimeter =/.

2. 1 m2 = 100 square decimeter, 1 square decimeter = 100 square centimeter, 1 square centimeter = 100 square millimeter;

3. 1 ton = 1 000kg,1kg = 1 000g = 1 kg =1kg;

4. 1 hectare = 1 10,000 square meters, 1 mu = 666,666 square meters;

5. 1 liter = 1 cubic decimeter = 1000 ml 1 ml = 1 cubic centimeter.

Second, the area unit conversion

1 km2 =100ha,1hectare = 10000 m2, 1 m2 = 100 m2,1m2 =100m2.

Three. Transformation between Body Unit and unit of volume

1 m3 = 1000 cubic decimeter, 1 cubic decimeter = 1000 cubic centimeter, 1 m3 = 1000 liter, 1 cubic decimeter =/kloc.

Fourth, the weight unit conversion

1 ton = 1 000kg, 1 kg = 1 000g,1kg =1kg.