Question: 1 ml of water is how many kg?
Answer: 1 ml (milliliter) = 1/1000 L (Liter, the official SI unit of volume). Weight of 1 milliliter (ml) of pure water at temperature 4 °C = 0.001 kilogram (kg) . The kilogram (abbreviation: kg) is the unit of mass in the metric system (SI, International System of Units).