The standard unit to measure mass is kilograms.
Grams or Ounces.
Meters
feet
millimeter
Meters
kilograms
Kilograms are the most appropriate.
kilograms
kiograms
Grams or Ounces.
The appropriate unit to measure weight is the newton. Now, if it is really the mass you wanted, you could use kilogram or gram.
kilograms
The most appropriate unit of weight for a computer would be in pounds.
The measurement of the toothpaste is "grams (g)"!
21 grams
TONS.
you would use gallons