2 stone is equal to about 12.7 kilograms. This means that if you want to convert 2 stone to kilograms, you can simply multiply 2 by the conversion factor of 6.35029318, which gives you 12.70058636 kilograms. Alternatively, you can use a conversion calculator or table to find the exact conversion. For example, according to one conversion table, 2 stone is equal to 12.70 kilograms.