1 km = 1 km = 1 000m =10000m =100000mm =100000mm =/kloc.

Square area system

1 km2 = 1 00ha1hectare =10000m2

1 km2 = 100000 m2 1 m2 = 100 mm2.

1 dm2 = 100 cm2 1 cm2 = 100 mm2

volume unit

1 cubic kilometer = 100000 cubic meter 1 cubic meter = 1000 cubic decimeter

1 decimeter cubic = 1000 cubic centimeter 1 cubic centimeter = 1000 cubic millimeter

Unit of volume 1 l = 1000 ml 1 dm3 = 1 l 1 cm3 = 1 ml.

Mass unit1t =1000kg1kg =1kg =1000mg1kg = 2kg.

1 kg = 10 Liang = 500g 1 Liang = 50g.

RMB unit conversion 1 yuan = 10 angle 1 angle = 10 minute 1 yuan = 100 minute.

Time conversion 1 century = 100 1 year = 1 2/day =24 hours 1 hour =60 minutes 1 minute =60 seconds/kloc-.

Note: There are seven months in a big month (3 1 day): 1, 3, 5, 7, 8, 10, 12, etc. Abortion (30 days) includes four months: 4, 6, 9,11; There are 28 days in February in a normal year and 29 days in a leap year. ; There are 365 days in a normal year and 366 days in a leap year.