Why multiples and sub-multiples of kilogram are used in the measurement of mass?

Multiples and sub-multiples of the kilogram are used in mass measurement to accommodate a wide range of objects and substances, from tiny grains to large goods. This system allows for greater precision and convenience, as it simplifies calculations and comparisons across different scales. By using prefixes like gram (1/1000 kg) or metric ton (1000 kg), measurements can be easily expressed and understood in various contexts, enhancing communication in scientific, commercial, and everyday settings.