Square area system
1 ha =10000m2/1 hm2= 10000 m?
1 m2 = 100 m2/ 1 m2 = 100dm?
1 m2 = 10000 cm2/ 1 m2 = 10000cm?
1 square decimeter = 100 cm2/1 dm2= 100cm?
1 cm2 = 100 mm2/ 1 cm2 = 100mm?
Volume, volume conversion unit
1 m3 = 1000 m3/ 1 m3 = 1000dm?
1 decimeter cubic = 1000 cubic centimeter/1 dm3= 1000cm?
1 cubic decimeter = 1 liter/1 dm3 = 1 liter.
1 cm3 = 1 ml/1 cm3 = 1 ml
1 m3 = 1000 L/ 1 m3 = 1000 L
Weight unit conversion
1t = 1000kg/ 1t = 1000kg。
1 kg =1000mg/1 kg =1000mg
1 kg = 1 kg/1 kg = 1 kg
Time unit conversion
1 century = 100 year
1 year = 65438+ February.
Abortion (30 days) was 469 1 1 month.
February 28th in a normal year,
February 29th of leap year.
365 days a year,
A leap year has 366 days.
1 day =24 hours
1 =60 points