重量單位

Metric System Weights and Measures
1 kilogram (kg)	1000 grams (103)
1 milligram (mg)	0.001 gram (10-3)
1 microgram (µg)	0.000001 gram (10-6)
1 liter (L)	1000 mL (103)
1 milliliter (mL)	0.001 L (10-3)
1 microliter (µL)	0.000001 L (10-6)
1 milliliter (ml)	1 cubic centimeter (cc)