1km = 1000m 1m = 10DM 1DM = 10cm 1cm = 10mm

1 m = 10 decimeter =100 cm =1000 mm.

1 m2 = 100 square decimeter 1 square decimeter = 100 square centimeter

1 cm2 = 100 mm2

1 km2 = 1 00ha1hectare =10000m2

1 m3 = 1000 cubic decimeter

1 cm3 = 1000 cm3

1L = 1000ml

1 = 60min1min = 60s.