To calculate your REAL weight, use pounds and inches, Not kilograms and centimetres, because kilograms are a different type of weight. There are only a few types of weight measurements. So you can type your real pounds and inches, to calculate your real weight. Find any ruler you have at home to calculate your inches. And find a pound weigher at home to calculate your pounds (if there isn’t, then go to the hospital) I also have a code asset to calculate your weight to put in your backpack.
This is not how much you weigh on other planets (only earth) thanks to @monsterman27 for the weight code assets. My number weight is 16.462098.