As for internationalisation of measurements, you can type like this:
23 pounds in kg or 4 kg in pounds or 1.78 m in feet or 5.7 feet in m
Just type it straight into google, and you'll get a box right below the search bar with the converted units.
I try not to focus on my weight, because I know I've been way too close to eating disorders before. Sometimes I've got to force myself to eat, and sometimes the thoughts of throwing up something unhealthy won't quit haunting me. Obsessing with weigh is way too simple. For the same reasons I try not to focus too much on what's in the mirror, so I end up sticking to the objective about health. I know that what I do to my body the coming 5-6 years will be the fundament of how my body will work as I grow older.
Currently I go to the climbing hall 7 times per week, for 1 hour if I'm alone and bouldering and 2 hours if I go with my dad (then I'll be securing him half the time). I want to take up eating every other day again, because food is so ugh and every other day has major health benefits (as well as weigh loss if you're not at you optimal weight).