1 km = 1000 m 1 km = 10000 decimeter 1 km = 100000 cm.
1 m = 10 decimeter1m =100 cm1m =1000 mm (not commonly used).
1 decimeter = 1 0cm1decimeter =100mm.
1 cm = 10/0mm.
2. Weight unit.
1t = 1000kg 1t = 10000g 1k g = 1000g。
3. Area unit.
1 km2 = 100 hectare 1 hectare = 100 hectare 1 hectare = 100 square meter.
1 m2 = 100 square decimeter.
1 square decimeter = 100 square centimeter 1 square kilometer = 100000 square meter.
4. Area unit conversion.
1 square kilometer = 100 hectare 1 hectare = 10000 square meter 1 square meter = 100 square decimeter.
1 decimeter square = 100 cm2 1 cm2 = 100 mm2.
5. unit of volume.
1 m3 = 1000 cubic decimeter 1 cubic decimeter = 1000 cubic centimeter.
1 m3 = 1000000 cubic centimeters.
6. unit of volume.
1 l = 1 cubic decimeter = 1000 ml (cubic centimeter) 1 ml = 1 cubic centimeter.
7, body (volume) product unit conversion.
1 m3 = 1000 cubic decimeter 1 cubic decimeter = 1000 cubic centimeter 1 cubic decimeter = 1 liter.
1 cm3 = 1 ml 1 m3 = 1000 liter.
8. Conversion of weight units.
1t = 1000kg 1kg = 1000g 1kg = 1kg。
9. RMB unit conversion.
1 yuan = 10 angle 1 angle = 10 point 1 yuan = 100 point 10 yuan = 1000 point.
10, time unit conversion.
1 century =100/year =1February (3 1 day) zone (1357810/February).
February 28th in a normal year, February 29th in a leap year, 365 days in a normal year and 366 days in a leap year.
1 day =24 hours 1 hour =60 minutes 1 minute =60 seconds 1 hour =3600 seconds.