Question: how to calculate how much water to drink kg?
Answer: Divide your weight by 30. The answer is the number of litres you should be drinking per day. So, if you weigh 60 kilos for example, you should drink 2 litres of water a day, whereas if you weigh 80 kilos, you should drink 2.6 litres (2 litres and 600 ml) of water per day.