1. Area unit conversion 1 square kilometer = 100 hectare 1 0000 square meter 1 square meter = 1 square meter = 5438+0000m1m =10mm/mm =10cm1m =10cm1cm = Volume (capacity) product unit conversion 1 m3 = 1000 m3 1 m3 = 1000 cm3 1 m3 = 1 liter 1 m3 =/kloc-0. 438+0kg = 1 000g 1 kg = 1 kg V. RMB unit conversion1yuan = 10 angle10 minute/kloc. The big moon (3 1 day) in February is 13578 1065438+ the small moon (30 days) is: 469 165438+ 28 days in normal year, 29 days in leap year and 365 days in normal year.