I'm sure you'll figure it out. I don't need to. Never have used kilograms for the last 30 years of raising chickens, ducks, geese, swine, sheep, dogs, cats, and keeping myself healthy. My current flock is on 8 years now and still laying well, so I'm not concerned with precise measurements via the metric system. Standard weights and measures, knowing old poultry men, both hobbyist and commercial, and trial and error over the years, provides enough information. There are European poultry forums you could likely find much information in regard to the metric system they use.