Metric measurement
Length millimetre
to change units from cm to mm x 10 centimetre
to change units from m to cm x 100 metre
to change units from km to m x 1000 kilometre
mm cm m km
to change units from mm to cm ÷ 10 to change units from cm to m ÷ 100 to change units from m to km ÷ 1000
Area
to change units from cm2 to mm2 x 100
to change units from m2 to cm2 x 10,000
to change units from km2 to m2 x 1,000,000
mm2 cm2 m2 km2
to change units from mm2 to cm2 ÷ 100 to change units from cm2 to m2 ÷ 10,000 to change units from m2 to km2 ÷ 1,000,000
to change units from hectare to m2 x 100
to change units from km2 to hectare x 100
m2 hectare km2
to change units from m2 to hectare ÷ 10000 to change units from km2 to hectare ÷ 100
Volume
to change units from cm3 to mm3 x 1,000
to change units from m3 to cm3 x 1,000,000
mm3 cm3 m3
to change units from mm3 to cm3 ÷ 1,000 to change units from cm3 to m3 ÷ 1,000,000
Capacity
1cl = 1cm3
to change units from litre to cl x 100
ml cl litre
1cm3 water = 1g to change units from cl to litre ÷ 100
Weight
to change units from mg to g x 1000
to change units from g to kg x 1000
to change units from kg tonnes x 1000
mg g kg tonne
to change units from g to mg ÷ 1000 to change units from kg to g ÷ 1000 to change units from tonnes to kg ÷ 1000