What is a stone?
A stone is a unit of weight commonly used in the United Kingdom and Ireland. It is equal to 14 pounds or approximately 6.35 kilograms. The stone is often used to measure the weight of a person or animals, as well as for certain goods such as fruit and vegetables. While not an official metric unit, the stone is still widely used in everyday life in these countries.
We provide a calculator on this site to convert stones to kilograms.
What is a microgram?
A microgram is a unit of mass in the metric system that is equal to one millionth of a gram. It is commonly used to measure very small amounts of substances, such as medications, vitamins, or pollutants. The symbol for microgram is μg. To put it into perspective, a single grain of table salt typically weighs around 58,500 micrograms.
