I don't know why many tall people are so thin. Being too tall and thin gives people an unhealthy feeling. I have a cousin who is still young, 160, but the young man has always been strong and now weighs about 140. I often take him to the gym, but he is obviously fat and he needs to lose weight. Your height is 180, and your minimum weight needs to be 165- 170 kg.

I found some information on the internet. You can compare yourself:

Body Mass Index (in English) is a number obtained by dividing the weight in kilograms by the square of the height in meters, and it is a commonly used international standard to measure obesity and health. When we need to compare and analyze the influence of a person's weight on the health of people of different heights, the body mass index is a neutral and reliable indicator.

Asian male standard weight table (kg, cm) 10% normal.